PT-1528 Ingore UTF8 warning

PT-1528 [WIP] Proposed solution
PT-1891 Fixed mongodb-summary connection with ssl (#469 )
2025-09-10 13:11:32 +00:00 · 2020-12-16 15:18:23 -03:00 · 2020-11-22 18:58:00 -03:00 · 2020-11-02 17:13:29 -03:00 · 2020-10-27 19:17:02 -03:00 · 2020-10-27 19:15:21 -03:00
55 changed files with 1834 additions and 273 deletions
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: go

 go:
+  - 1.15.x
  - 1.14.x
  - tip

@@ -9,6 +10,7 @@ services:

 env:
  global:
+    - GO111MODULE: "off" # TODO test with "on" too
    - DOCKER_COMPOSE_VERSION: 1.8.0
    - TEST_MONGODB_FLAVOR: mongo
    - TEST_PSMDB_VERSION: 4.0
@@ -35,7 +37,7 @@ env:
    - TEST_MONGODB_S3_SECONDARY1_PORT: 17022
    - TEST_MONGODB_S3_SECONDARY2_PORT: 17023
    # REVIEWDOG_GITHUB_API_TOKEN
-    - secure: "px8XYeNEAFTSTb1hYZuEOxqOXUxvp3EoU+KCtPck/KNozkoS95eBd9klgr3Os4wPKloLdMhrr0VE98lukogUxA/NmnYnos01kegjWgwwM6fkob8JxaN5KK4oUFF1wmirBlrjGlw8vUErPwINmrK4BywKpDbw6Yip6FzxdlWESHI="
+    secure: "iba+2pzxc/zfMxnYki9qM9pCZs1uTEoqfPTaG9qtVr8cMutDzCJvMftn0bb6gSUrglt2mjSNhV65HX7mZl0qh8p/6a46QpzFiwZmaTH+E1tGQf97Z55tx3tHgrcoFI8LGPEHpTQehcI7V0VVo69aBhz+8lNNScOuJwt8ulyuVwE="

 matrix:
  include:
@@ -61,8 +63,9 @@ before_install:
    - docker-compose --version

 install:
-  - go get -u github.com/golang/dep/cmd/dep
-  # install reviewdog and golangci-lin
+  - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+
+  # install reviewdog and golangci-lint
  - curl https://raw.githubusercontent.com/reviewdog/reviewdog/master/install.sh| sh -s
  - curl https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s latest

--- a/4
+++ b/4
@@ -1,5 +1,9 @@
 Changelog for Percona Toolkit

+ * Fixed bug   PT-169 : pt-online-schema-change FKs error handling.
+ * Fixed bug   PT-1892: pt-summary says sshd not running
+ * Fixed bug   PT-1881: pt-upgrade fails when query including format strings and SQL errors is given (Thanks Nayuta Yanagisawa)
+
 * Fixed bug   PT-1859: pt-pg-summary fails for Postgres12 (Thanks Sergey Kuzmichev)
 * Improvement PT-1853: Added --no-check-foreing-keys to pt-osc
 * Improvement PT-1851: Backslashes missing from documentation
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -202,7 +202,15 @@
  version = "v1.0.0"

 [[projects]]
-  digest = "1:55dcddb2ba6ab25098ee6b96f176f39305f1fde7ea3d138e7e10bb64a5bf45be"
+  digest = "1:9d1d58facb0409ecf634fec680d83b6f57f4e619458f7b7b5e4dda1665fd89ec"
+  name = "github.com/prometheus/common"
+  packages = ["log"]
+  pruneopts = ""
+  revision = "f39dfa2b000545b3a763b844012958c275a62266"
+  version = "v0.13.0"
+
+[[projects]]
+  digest = "1:9d35a914be9b807050704f377becb1f864ee46b000f590566a8b9fb871d6c571"
  name = "github.com/shirou/gopsutil"
  packages = [
    "cpu",
@@ -212,16 +220,8 @@
    "process",
  ]
  pruneopts = ""
-  revision = "e4ec7b275ada47ca32799106c2dba142d96aaf93"
-  version = "v2.19.8"
-
-[[projects]]
-  branch = "master"
-  digest = "1:99c6a6dab47067c9b898e8c8b13d130c6ab4ffbcc4b7cc6236c2cd0b1e344f5b"
-  name = "github.com/shirou/w32"
-  packages = ["."]
-  pruneopts = ""
-  revision = "bb4de0191aa41b5507caa14b0650cdbddcd9280b"
+  revision = "9aa2bee419e8b592ecf9f46018f3f1f6a5474c10"
+  version = "v2.20.8"

 [[projects]]
  digest = "1:1a405cddcf3368445051fb70ab465ae99da56ad7be8d8ca7fc52159d1c2d873c"
@@ -324,6 +324,8 @@
  packages = [
    "unix",
    "windows",
+    "windows/registry",
+    "windows/svc/eventlog",
  ]
  pruneopts = ""
  revision = "749cb33beabd9aa6d3178e3de05bcc914f70b2bf"
@@ -343,6 +345,25 @@
  revision = "342b2e1fbaa52c93f31447ad2c6abc048c63e475"
  version = "v0.3.2"

+[[projects]]
+  digest = "1:15d017551627c8bb091bde628215b2861bed128855343fdd570c62d08871f6e1"
+  name = "gopkg.in/alecthomas/kingpin.v2"
+  packages = ["."]
+  pruneopts = ""
+  revision = "947dcec5ba9c011838740e680966fd7087a71d0d"
+  version = "v2.2.6"
+
+[[projects]]
+  branch = "v2"
+  digest = "1:e56755c5336ff37d20befca76df29097085c85ea1fe58af746e3df6b815decfa"
+  name = "gopkg.in/mgo.v2"
+  packages = [
+    "bson",
+    "internal/json",
+  ]
+  pruneopts = ""
+  revision = "a6b53ec6cb22a3699387a57a161566f9402ee85b"
+
 [[projects]]
  branch = "v3"
  digest = "1:2e9c4d6def1d36dcd17730e00c06b49a2e97ea5e1e639bcd24fa60fa43e33ad6"
@@ -368,6 +389,7 @@
    "github.com/pborman/getopt",
    "github.com/percona/go-mysql/query",
    "github.com/pkg/errors",
+    "github.com/prometheus/common/log",
    "github.com/shirou/gopsutil/process",
    "github.com/sirupsen/logrus",
    "github.com/stretchr/testify/assert",
@@ -377,6 +399,7 @@
    "go.mongodb.org/mongo-driver/mongo",
    "go.mongodb.org/mongo-driver/mongo/options",
    "golang.org/x/crypto/ssh/terminal",
+    "gopkg.in/mgo.v2/bson",
  ]
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -24,4 +24,4 @@

 [[constraint]]
  name = "github.com/shirou/gopsutil"
-  version = "2.17.11"
+  version = "2.20.8"
--- a/bin/pt-online-schema-change
+++ b/bin/pt-online-schema-change
@@ -8387,6 +8387,7 @@ package pt_online_schema_change;

 use strict;
 use warnings FATAL => 'all';
+use utf8;
 use English qw(-no_match_vars);

 use Percona::Toolkit;
@@ -8474,7 +8475,7 @@ sub main {
   @drop_trigger_sqls    = ();
   @triggers_not_dropped = ();
   $dont_interrupt_now   = 0;
-   %ignore_code = (1592 => 1, 1062 => 1);
+   %ignore_code = (1592 => 1, 1062 => 1, 1300 => 1);

   my %stats = (
      INSERT => 0,
@@ -8788,6 +8789,7 @@ sub main {
   my $flow_ctl_pr;    # Progress for FlowControlWaiter
   my $sys_load;       # MySQLStatusWaiter object
   my $sys_load_pr;    # Progress for MySQLStatusWaiter object
+   my $process_error;  # Used if drop_swap fails

   if ( $o->get('execute') ) {
      # #####################################################################
@@ -9414,6 +9416,9 @@ sub main {
            . "cause MySQL error 1146 (42S02): \"Table $new_tbl->{name} "
            . " doesn't exist\".\n";
      }
+      elsif ($process_error) {
+          print "Not dropping new table because FKs processing has failed.\n";
+      }
      else {
         print ts("Dropping new table...\n");
         print $sql, "\n" if $o->get('print');
@@ -10208,8 +10213,9 @@ sub main {
         }
      };
      if ( $EVAL_ERROR ) {
-         # TODO: improve error message and handling.
-         _die("Error updating foreign key constraints: $EVAL_ERROR", ERROR_UPDATING_FKS);
+          #$oktorun = 0;
+          $process_error = "Error updating foreign key constraints: $EVAL_ERROR";
+         _die($process_error, ERROR_UPDATING_FKS);
      }

      # --plugin hook
@@ -10273,6 +10279,7 @@ sub main {
   # ########################################################################
   # Done.
   # ########################################################################
+   
   $orig_tbl->{success} = 1;  # flag for cleanup tasks   
   $cleanup = undef;          # exec cleanup tasks

--- a/bin/pt-summary
+++ b/bin/pt-summary
@@ -1278,7 +1278,7 @@ top_processes () { local PTFUNCNAME=top_processes;

 notable_processes_info () { local PTFUNCNAME=notable_processes_info;
   local format="%5s    %+2d    %s\n"
-   local sshd_pid=$(ps -eo pid,args | awk '$2 ~ /\/usr\/sbin\/sshd/ { print $1; exit }')
+   local sshd_pid=$(ps -eo pid,args | awk '$0 ~ /\/usr\/sbin\/sshd/ { print $1; exit }')

   echo "  PID    OOM    COMMAND"

--- a/bin/pt-upgrade
+++ b/bin/pt-upgrade
@@ -6159,7 +6159,7 @@ sub _print_failures {
   foreach my $failure ( @$failures ) {
      print "\n-- $failno.\n";
      if ( ($failure->[1] || '') eq ($failure->[2] || '') ) {
-         printf "\nOn both hosts:\n\n" . ($failure->[1] || '') . "\n";
+         print "\nOn both hosts:\n\n" . ($failure->[1] || '') . "\n";
      }
      else {
         printf "\n%s\n\nvs.\n\n%s\n",
--- a/docs/release_notes.rst
+++ b/docs/release_notes.rst
@@ -1,6 +1,28 @@
 Percona Toolkit
 ***************

+
+
+v3.2.1 released 2020-08-13
+==========================
+
+Improvements:
+
+* :jirabug:`PT-1836`: Review and consider lintian reported issues (Thanks to user midget for reporting this issue)
+
+Bugs Fixed:
+
+* :jirabug:`PT-1853`: Added --no-check-foreign-keys to pt-osc
+* :jirabug:`PT-1869`: pt-osc dynamically update slave list on check slaves (Thanks to user mateus.dubiela for reporting this issue)
+* :jirabug:`PT-1829`: pt-heartbeat doesn't reconnect for check-read-only
+* :jirabug:`PT-1822`: pt-mongodb-summary fails on standalone mongodb instances
+* :jirabug:`PT-1851`: Backslashes missing from documentation (Thanks to user billkarwin for reporting this issue)
+* :jirabug:`PT-1518`: pt-table-checksum gives error CRC32 never needs BIT_XOR optimization (Thanks to user soumya_s_das (AT homedepot DOT com) for reporting this issue)
+* :jirabug:`PT-1859`: pt-pg-summary fails for Postgres12
+
+
+
+
 v3.2.0 released 2020-04-23
 ==========================

--- a/docs/rn.3-2-1.txt
+++ b/docs/rn.3-2-1.txt
@@ -0,0 +1,28 @@
+.. _PT-3.2.1:
+
+================================================================================
+*Percona Toolkit* 3.2.1
+================================================================================
+
+:Date: August 13, 2020
+:Installation: `Installing Percona Toolkit <https://www.percona.com/doc/percona-toolkit/LATEST/installation.html>`_
+
+Improvements
+================================================================================
+
+* :jirabug:`PT-1836`: Review and consider lintian reported issues (Thanks to user midget for reporting this issue)
+
+
+
+Bugs Fixed
+================================================================================
+
+* :jirabug:`PT-1853`: Added --no-check-foreign-keys to pt-osc
+* :jirabug:`PT-1869`: pt-osc dynamically update slave list on check slaves (Thanks to user mateus.dubiela for reporting this issue)
+* :jirabug:`PT-1829`: pt-heartbeat doesn't reconnect for check-read-only
+* :jirabug:`PT-1822`: pt-mongodb-summary fails on standalone mongodb instances
+* :jirabug:`PT-1851`: Backslashes missing from documentation (Thanks to user billkarwin for reporting this issue)
+* :jirabug:`PT-1518`: pt-table-checksum gives error CRC32 never needs BIT_XOR optimization (Thanks to user soumya_s_das@homedepot.com for reporting this issue)
+* :jirabug:`PT-1859`: pt-pg-summary fails for Postgres12
+
+
--- a/go.mod
+++ b/go.mod
@@ -0,0 +1,40 @@
+module github.com/percona/percona-toolkit
+
+go 1.14
+
+require (
+	github.com/Masterminds/semver v1.4.2
+	github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 // indirect
+	github.com/alecthomas/kingpin v2.2.6+incompatible
+	github.com/go-ini/ini v1.46.0
+	github.com/go-ole/go-ole v1.2.4 // indirect
+	github.com/golang/mock v1.3.1-0.20190508161146-9fa652df1129
+	github.com/golang/snappy v0.0.2-0.20190904063534-ff6b7dc882cf // indirect
+	github.com/google/go-cmp v0.5.2 // indirect
+	github.com/google/uuid v1.1.1
+	github.com/hashicorp/go-version v1.2.1-0.20190424083514-192140e6f3e6
+	github.com/howeyc/gopass v0.0.0-20170109162249-bf9dde6d0d2c
+	github.com/klauspost/compress v1.10.10 // indirect
+	github.com/lib/pq v1.2.0
+	github.com/mattn/go-shellwords v1.0.6
+	github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe
+	github.com/pborman/getopt v0.0.0-20190409184431-ee0cd42419d3
+	github.com/percona/go-mysql v0.0.0-20190903141930-197f4ad8db8d
+	github.com/pkg/errors v0.9.1
+	github.com/prometheus/common v0.13.0
+	github.com/shirou/gopsutil v2.20.8+incompatible
+	github.com/sirupsen/logrus v1.6.0
+	github.com/stretchr/testify v1.6.1
+	github.com/xdg/stringprep v1.0.1-0.20180714160509-73f8eece6fdc // indirect
+	go.mongodb.org/mongo-driver v1.3.4
+	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
+	golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 // indirect
+	golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f // indirect
+	golang.org/x/text v0.3.3 // indirect
+	golang.org/x/tools v0.0.0-20201023174141-c8cfbd0f21e6 // indirect
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	gopkg.in/ini.v1 v1.61.0 // indirect
+	gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22
+	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect
+	mvdan.cc/gofumpt v0.0.0-20200927160801-5bfeb2e70dd6 // indirect
+)
--- a/go.sum
+++ b/go.sum
@@ -0,0 +1,539 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/Masterminds/semver v1.4.2 h1:WBLTQ37jOCzSLtXNdoo8bNM8876KhNqOKvrlGITgsTc=
+github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
+github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
+github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
+github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8=
+github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
+github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
+github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
+github.com/alecthomas/kingpin v2.2.6+incompatible h1:5svnBTFgJjZvGKyYBtMB0+m5wvrbUHiqye8wRJMlnYI=
+github.com/alecthomas/kingpin v2.2.6+incompatible/go.mod h1:59OFYbFVLKQKq+mqrL6Rw5bR0c3ACQaawgXx0QYndlE=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 h1:Hs82Z41s6SdL1CELW+XaDYmOH4hkBN4/N9og/AsOv7E=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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+github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
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+github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
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+github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
+github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
+github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
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+github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
+github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+mvdan.cc/gofumpt v0.0.0-20200927160801-5bfeb2e70dd6 h1:z+/YqapuV7VZPvBb3GYmuEJbA88M3PFUxaHilHYVCpQ=
+mvdan.cc/gofumpt v0.0.0-20200927160801-5bfeb2e70dd6/go.mod h1:bzrjFmaD6+xqohD3KYP0H2FEuxknnBmyyOxdhLdaIws=
+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
--- a/lib/UpgradeResults.pm
+++ b/lib/UpgradeResults.pm
@@ -405,7 +405,7 @@ sub _print_failures {
   foreach my $failure ( @$failures ) {
      print "\n-- $failno.\n";
      if ( ($failure->[1] || '') eq ($failure->[2] || '') ) {
-         printf "\nOn both hosts:\n\n" . ($failure->[1] || '') . "\n";
+         print "\nOn both hosts:\n\n" . ($failure->[1] || '') . "\n";
      }
      else {
         printf "\n%s\n\nvs.\n\n%s\n",
--- a/src/go/Makefile
+++ b/src/go/Makefile
@@ -138,8 +138,8 @@ test:						## Run tests
 	@./runtests.sh

 format:                         ## Format source code.
-	gofmt -w -s $(FILES)
-	goimports -local github.com/percona/pmm-managed -l -w $(FILES)
+	gofumpt -w -s $(FILES)
+	gofumports -local github.com/percona/pmm-managed -l -w $(FILES)

 vet:						## Run vet on Go code
 	@echo ">> vetting code"
--- a/src/go/internal/testutils/env.go
+++ b/src/go/internal/testutils/env.go
@@ -1,11 +1,16 @@
 package testutils

 import (
+	"context"
+	"net"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"strings"
 	"time"
+
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
 )

 const (
@@ -143,30 +148,70 @@ func BaseDir() string {
 	}

 	basedir = strings.TrimSpace(string(out))
+
 	return basedir
 }

 // GetMongoDBAddr returns the address of an instance by replicaset name and instance type like
-// (rs1, primary) or (rs1, secondary1)
+// (rs1, primary) or (rs1, secondary1).
 func GetMongoDBAddr(rs, name string) string {
 	if _, ok := hosts[rs]; !ok {
 		return ""
 	}
+
 	replset := hosts[rs]
+
 	if host, ok := replset[name]; ok {
 		return host
 	}
+
 	return ""
 }

-// GetMongoDBReplsetAddrs return the addresses of all instances for a replicaset name
+// GetMongoDBReplsetAddrs return the addresses of all instances for a replicaset name.
 func GetMongoDBReplsetAddrs(rs string) []string {
 	addrs := []string{}
+
 	if _, ok := hosts[rs]; !ok {
 		return addrs
 	}
+
 	for _, host := range hosts[rs] {
 		addrs = append(addrs, host)
 	}
+
 	return addrs
 }
+
+// TestClient returns a new MongoDB connection to the specified server port.
+func TestClient(ctx context.Context, port string) (*mongo.Client, error) {
+	if port == "" {
+		port = MongoDBShard1PrimaryPort
+	}
+
+	hostname := "127.0.0.1"
+	direct := true
+	to := time.Second
+	co := &options.ClientOptions{
+		ConnectTimeout: &to,
+		Hosts:          []string{net.JoinHostPort(hostname, port)},
+		Direct:         &direct,
+		Auth: &options.Credential{
+			Username:    MongoDBUser,
+			Password:    MongoDBPassword,
+			PasswordSet: true,
+		},
+	}
+
+	client, err := mongo.Connect(ctx, co)
+	if err != nil {
+		return nil, err
+	}
+
+	err = client.Ping(ctx, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
+}
--- a/src/go/lib/config/config.go
+++ b/src/go/lib/config/config.go
@@ -75,10 +75,8 @@ func DefaultConfigFiles(toolName string) ([]string, error) {
 }

 func DefaultConfig(toolname string) *Config {
-
 	files, _ := DefaultConfigFiles(toolname)
 	return NewConfig(files...)
-
 }

 func NewConfig(files ...string) *Config {
@@ -94,7 +92,6 @@ func NewConfig(files ...string) *Config {
 }

 func read(filename string, opts map[string]interface{}) error {
-
 	f, err := os.Open(filename)
 	if err != nil {
 		return err
--- a/src/go/lib/config/config_test.go
+++ b/src/go/lib/config/config_test.go
@@ -11,7 +11,6 @@ import (
 )

 func TestReadConfig(t *testing.T) {
-
 	rootPath, err := tutil.RootPath()
 	if err != nil {
 		t.Errorf("cannot get root path: %s", err)
@@ -69,7 +68,6 @@ func TestReadConfig(t *testing.T) {
 }

 func TestOverrideConfig(t *testing.T) {
-
 	rootPath, err := tutil.RootPath()
 	if err != nil {
 		t.Errorf("cannot get root path: %s", err)
@@ -131,7 +129,6 @@ func TestOverrideConfig(t *testing.T) {
 }

 func TestDefaultFiles(t *testing.T) {
-
 	user, _ := user.Current()
 	toolname := "pt-testing"

@@ -150,5 +147,4 @@ func TestDefaultFiles(t *testing.T) {
 	if !reflect.DeepEqual(got, want) {
 		t.Errorf("got %#v\nwant: %#v\n", got, want)
 	}
-
 }
--- a/src/go/lib/pginfo/pginfo.go
+++ b/src/go/lib/pginfo/pginfo.go
@@ -5,8 +5,8 @@ import (
 	"regexp"
 	"time"

-	"github.com/percona/percona-toolkit/src/go/pt-pg-summary/models"
 	"github.com/hashicorp/go-version"
+	"github.com/percona/percona-toolkit/src/go/pt-pg-summary/models"
 	"github.com/pkg/errors"
 	"github.com/shirou/gopsutil/process"
 	"github.com/sirupsen/logrus"
--- a/src/go/lib/tutil/util.go
+++ b/src/go/lib/tutil/util.go
@@ -108,17 +108,15 @@ func LoadBson(filename string, destination interface{}) error {
 }

 func WriteJson(filename string, data interface{}) error {
-
 	buf, err := json.MarshalIndent(data, "", "  ")
 	if err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(filename, buf, 0777)
+	err = ioutil.WriteFile(filename, buf, 0o777)
 	if err != nil {
 		return err
 	}
 	return nil
-
 }

 func ShouldUpdateSamples() bool {
--- a/src/go/lib/versioncheck/version_check_test.go
+++ b/src/go/lib/versioncheck/version_check_test.go
@@ -12,7 +12,6 @@ import (
 )

 func TestCheckUpdates(t *testing.T) {
-
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		body, _ := ioutil.ReadAll(r.Body)
 		m := strings.Split(string(body), ";")
@@ -39,11 +38,9 @@ func TestCheckUpdates(t *testing.T) {
 	if msg == "" {
 		t.Error("got empty response")
 	}
-
 }

 func TestEmptyResponse(t *testing.T) {
-
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprint(w, "")
 	}))
@@ -57,5 +54,4 @@ func TestEmptyResponse(t *testing.T) {
 	if msg != "" {
 		t.Error("response should return error due to empty body")
 	}
-
 }
--- a/src/go/mongolib/profiler/profiler.go
+++ b/src/go/mongolib/profiler/profiler.go
@@ -11,10 +11,8 @@ import (
 	"go.mongodb.org/mongo-driver/mongo"
 )

-var (
 // DocsBufferSize is the buffer size to store documents from the MongoDB profiler
-	DocsBufferSize = 100
-)
+var DocsBufferSize = 100

 // Profiler interface
 type Profiler interface {
--- a/src/go/mongolib/proto/oplog.go
+++ b/src/go/mongolib/proto/oplog.go
@@ -34,9 +34,11 @@ type OpLogs []OplogInfo
 func (s OpLogs) Len() int {
 	return len(s)
 }
+
 func (s OpLogs) Swap(i, j int) {
 	s[i], s[j] = s[j], s[i]
 }
+
 func (s OpLogs) Less(i, j int) bool {
 	return s[i].TimeDiffHours < s[j].TimeDiffHours
 }
--- a/src/go/mongolib/proto/procinfo.go
+++ b/src/go/mongolib/proto/procinfo.go
@@ -0,0 +1,30 @@
+package proto
+
+import "time"
+
+type ProcInfo struct {
+	CreateTime time.Time
+	Path       string
+	UserName   string
+	Error      error
+}
+
+type GetHostInfo struct {
+	Hostname          string
+	HostOsType        string
+	HostSystemCPUArch string
+	HostDatabases     int
+	HostCollections   int
+	DBPath            string
+
+	ProcPath         string
+	ProcUserName     string
+	ProcCreateTime   time.Time
+	ProcProcessCount int
+
+	// Server Status
+	ProcessName    string
+	ReplicasetName string
+	Version        string
+	NodeType       string
+}
--- a/src/go/mongolib/proto/replconfig.go
+++ b/src/go/mongolib/proto/replconfig.go
@@ -4,8 +4,11 @@ import (
 	"go.mongodb.org/mongo-driver/bson/primitive"
 )

-type ReplicaSetConfigTags map[string]string
-type GetLastErrorModes map[string]*ReplicaSetConfigTags
+type (
+	ReplicaSetConfigTags map[string]string
+
+	GetLastErrorModes map[string]*ReplicaSetConfigTags
+)

 // https://docs.mongodb.com/v3.2/reference/command/getLastError/#dbcmd.getLastError
 type GetLastErrorDefaults struct {
--- a/src/go/mongolib/proto/replstatus.go
+++ b/src/go/mongolib/proto/replstatus.go
@@ -1,6 +1,9 @@
 package proto

-import "go.mongodb.org/mongo-driver/bson/primitive"
+import (
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"gopkg.in/mgo.v2/bson"
+)

 const (
 	REPLICA_SET_MEMBER_STARTUP = iota
@@ -48,3 +51,83 @@ type ReplicaSetStatus struct {
 	Ok                      float64            `bson:"ok"`                      //
 	Set                     string             `bson:"set"`                     // Replica set name
 }
+
+type Member struct {
+	Host         string  `bson:"host"`
+	Votes        int32   `bson:"votes"`
+	ID           int32   `bson:"_id"`
+	SlaveDelay   int64   `bson:"slaveDelay"`
+	Priority     float64 `bson:"priority"`
+	BuildIndexes bool    `bson:"buildIndexes"`
+	ArbiterOnly  bool    `bson:"arbiterOnly"`
+	Hidden       bool    `bson:"hidden"`
+	Tags         bson.M  `bson:"tags"`
+}
+
+type RSConfig struct {
+	ID                                 string     `bson:"_id"`
+	ConfigServer                       bool       `bson:"configsvr"`
+	WriteConcernMajorityJournalDefault bool       `bson:"writeConcernMajorityJournalDefault"`
+	Version                            int32      `bson:"version"`
+	ProtocolVersion                    int64      `bson:"protocolVersion"`
+	Settings                           RSSettings `bson:"settings"`
+	Members                            []Member   `bson:"members"`
+}
+
+type LastErrorDefaults struct {
+	W        int32 `bson:"w"`
+	WTimeout int32 `bson:"wtimeout"`
+}
+
+type RSSettings struct {
+	HeartbeatTimeoutSecs       int32              `bson:"heartbeatTimeoutSecs"`
+	ElectionTimeoutMillis      int32              `bson:"electionTimeoutMillis"`
+	CatchUpTimeoutMillis       int32              `bson:"catchUpTimeoutMillis"`
+	GetLastErrorModes          bson.M             `bson:"getLastErrorModes"`
+	ChainingAllowed            bool               `bson:"chainingAllowed"`
+	HeartbeatIntervalMillis    int32              `bson:"heartbeatIntervalMillis"`
+	CatchUpTakeoverDelayMillis int32              `bson:"catchUpTakeoverDelayMillis"`
+	GetLastErrorDefaults       LastErrorDefaults  `bson:"getLastErrorDefaults"`
+	ReplicaSetID               primitive.ObjectID `bson:"replicaSetId"`
+}
+
+type Signature struct {
+	Hash  primitive.Binary `bson:"hash"`
+	KeyID int64            `bson:"keyId"`
+}
+
+type ClusterTime struct {
+	ClusterTime primitive.Timestamp `bson:"clusterTime"`
+	Signature   Signature           `bson:"signature"`
+}
+
+type ReplicasetConfig struct {
+	Config              RSConfig            `bson:"config"`
+	OK                  float64             `bson:"ok"`
+	LastCommittedOpTime primitive.Timestamp `bson:"lastCommittedOpTime"`
+	ClusterTime         ClusterTime         `bson:"$clusterTime"`
+	OperationTime       primitive.Timestamp `bson:"operationTime"`
+}
+
+type ConfigVersion struct {
+	ID                   int32              `bson:"_id"`
+	MinCompatibleVersion int32              `bson:"minCompatibleVersion"`
+	CurrentVersion       int32              `bson:"currentVersion"`
+	ClusterID            primitive.ObjectID `bson:"clusterId"`
+}
+
+type ShardIdentity struct {
+	ID                        string             `bson:"_id"`
+	ShardName                 string             `bson:"shardName"`
+	ClusterID                 primitive.ObjectID `bson:"clusterId"`
+	ConfigsvrConnectionString string             `bson:"configsvrConnectionString"`
+}
+
+// MyState is a subset of getDiagnosticData result used to tag metrics in the MongoDB exporter
+type MyState struct {
+	Data struct {
+		ReplicasetGetStatus struct {
+			MyState int `bson:"myState"`
+		} `bson:"replSetGetStatus"`
+	} `bson:"data"`
+}
--- a/src/go/mongolib/util/util.go
+++ b/src/go/mongolib/util/util.go
@@ -2,23 +2,39 @@ package util

 import (
 	"context"
+	"fmt"
 	"sort"
 	"strings"
+	"time"

 	"github.com/percona/percona-toolkit/src/go/mongolib/proto"
 	"github.com/pkg/errors"
+	"github.com/prometheus/common/log"
+	"github.com/shirou/gopsutil/process"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
+	"gopkg.in/mgo.v2/bson"
 )

 const (
+	TypeIsDBGrid    = "isdbgrid"
+	TypeMongos      = "mongos"
+	TypeMongod      = "mongod"
+	TypeShardServer = "shardsvr"
+
+	milliToSeconds              = 1000
 	shardingNotEnabledErrorCode = 203
+	ErrNotYetInitialized        = int32(94)
+	ErrNoReplicationEnabled     = int32(76)
 )

 var (
 	CannotGetQueryError     = errors.New("cannot get query field from the profile document (it is not a map)")
 	ShardingNotEnabledError = errors.New("sharding not enabled")
+
+	ErrCannotGetProcess   = fmt.Errorf("cannot get process")
+	ErrCannotGetClusterID = fmt.Errorf("cannot get cluster ID")
 )

 func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOptions) ([]proto.Members, error) {
@@ -26,6 +42,7 @@ func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOpti
 	if err != nil {
 		return nil, errors.Wrap(err, "cannot get a new client for GetReplicasetMembers")
 	}
+
 	if err := client.Connect(ctx); err != nil {
 		return nil, errors.Wrap(err, "cannot connect to MongoDB")
 	}
@@ -34,6 +51,7 @@ func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOpti
 	if err != nil {
 		return nil, err
 	}
+
 	if err := client.Disconnect(ctx); err != nil {
 		return nil, errors.Wrapf(err, "cannot disconnect from %v", clientOptions.Hosts)
 	}
@@ -54,7 +72,10 @@ func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOpti
 		cmdOpts := proto.CommandLineOptions{}
 		// Not always we can get this info. For examples, we cannot get this for hidden hosts so
 		// if there is an error, just ignore it
-		res := client.Database("admin").RunCommand(ctx, primitive.D{{"getCmdLineOpts", 1}, {"recordStats", 1}})
+		res := client.Database("admin").RunCommand(ctx, primitive.D{
+			{Key: "getCmdLineOpts", Value: 1},
+			{Key: "recordStats", Value: 1},
+		})
 		if res.Err() == nil {
 			if err := res.Decode(&cmdOpts); err != nil {
 				return nil, errors.Wrapf(err, "cannot decode getCmdLineOpts response for host %s", hostname)
@@ -62,6 +83,7 @@ func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOpti
 		}

 		rss := proto.ReplicaSetStatus{}
+
 		res = client.Database("admin").RunCommand(ctx, primitive.M{"replSetGetStatus": 1})
 		if res.Err() != nil {
 			m := proto.Members{
@@ -73,26 +95,34 @@ func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOpti
 				m.ID = serverStatus.Pid
 				m.StorageEngine = serverStatus.StorageEngine
 			}
+
 			membersMap[m.Name] = m
+
 			continue // If a host is a mongos we cannot get info but is not a real error
 		}

 		if err := res.Decode(&rss); err != nil {
 			return nil, errors.Wrap(err, "cannot decode replSetGetStatus response")
 		}
+
 		for _, m := range rss.Members {
 			if _, ok := membersMap[m.Name]; ok {
 				continue // already exists
 			}
+
 			m.Set = rss.Set
+
 			if serverStatus, err := GetServerStatus(ctx, client); err == nil {
 				m.ID = serverStatus.Pid
 				m.StorageEngine = serverStatus.StorageEngine
+
 				if cmdOpts.Parsed.Sharding.ClusterRole != "" {
 					m.StateStr = cmdOpts.Parsed.Sharding.ClusterRole + "/" + m.StateStr
 				}
+
 				m.StateStr = strings.ToUpper(m.StateStr)
 			}
+
 			membersMap[m.Name] = m
 		}

@@ -104,30 +134,36 @@ func GetReplicasetMembers(ctx context.Context, clientOptions *options.ClientOpti
 	}

 	sort.Slice(members, func(i, j int) bool { return members[i].Name < members[j].Name })
+
 	return members, nil
 }

 func GetHostnames(ctx context.Context, client *mongo.Client) ([]string, error) {
 	// Probably we are connected to an individual member of a replica set
 	rss := proto.ReplicaSetStatus{}
+
 	res := client.Database("admin").RunCommand(ctx, primitive.M{"replSetGetStatus": 1})
 	if res.Err() == nil {
 		if err := res.Decode(&rss); err != nil {
 			return nil, errors.Wrap(err, "cannot decode replSetGetStatus response for GetHostnames")
 		}
+
 		return buildHostsListFromReplStatus(rss), nil
 	}

 	// Try getShardMap first. If we are connected to a mongos it will return
 	// all hosts, including config hosts
 	var shardsMap proto.ShardsMap
+
 	smRes := client.Database("admin").RunCommand(ctx, primitive.M{"getShardMap": 1})
 	if smRes.Err() != nil {
 		if e, ok := smRes.Err().(mongo.CommandError); ok && e.Code == shardingNotEnabledErrorCode {
 			return nil, ShardingNotEnabledError // standalone instance
 		}
+
 		return nil, errors.Wrap(smRes.Err(), "cannot getShardMap for GetHostnames")
 	}
+
 	if err := smRes.Decode(&shardsMap); err != nil {
 		return nil, errors.Wrap(err, "cannot decode getShardMap result for GetHostnames")
 	}
@@ -145,7 +181,6 @@ func GetHostnames(ctx context.Context, client *mongo.Client) ([]string, error) {
 	return nil, nil // standalone instance
 }

-func buildHostsListFromReplStatus(replStatus proto.ReplicaSetStatus) []string {
 /*
   "members" : [
            {
@@ -163,17 +198,17 @@ func buildHostsListFromReplStatus(replStatus proto.ReplicaSetStatus) []string {
                    "self" : true
            },
 */
-
+func buildHostsListFromReplStatus(replStatus proto.ReplicaSetStatus) []string {
 	hostnames := []string{}
 	for _, member := range replStatus.Members {
 		hostnames = append(hostnames, member.Name)
 	}
+
 	sort.Strings(hostnames) // to make testing easier

 	return hostnames
 }

-func buildHostsListFromShardMap(shardsMap proto.ShardsMap) []string {
 /* Example
 mongos> db.getSiblingDB('admin').runCommand('getShardMap')
 {
@@ -184,9 +219,9 @@ func buildHostsListFromShardMap(shardsMap proto.ShardsMap) []string {
    "r1/localhost:17001,localhost:17002,localhost:17003" : "r1/localhost:17001,localhost:17002,localhost:17003",
  },
  "ok" : 1
-	}
+}.
 */
-
+func buildHostsListFromShardMap(shardsMap proto.ShardsMap) []string {
 	hostnames := []string{}
 	hm := make(map[string]bool)

@@ -197,10 +232,11 @@ func buildHostsListFromShardMap(shardsMap proto.ShardsMap) []string {
 		for _, val := range shardsMap.Map {
 			m := strings.Split(val, "/")
 			hostsStr := ""
+
 			switch len(m) {
 			case 1:
 				hostsStr = m[0] // there is no / in the hosts list
-			case 2:
+			case 2: //nolint
 				hostsStr = m[1] // there is a / in the string. Remove the prefix until the / and keep the rest
 			}
 			// since there is no Sets in Go, build a map where the value is the map key
@@ -209,33 +245,39 @@ func buildHostsListFromShardMap(shardsMap proto.ShardsMap) []string {
 				hm[host] = false
 			}
 		}
+
 		for host := range hm {
 			hostnames = append(hostnames, host)
 		}
 	}

 	sort.Strings(hostnames)
+
 	return hostnames
 }

 // GetShardedHosts is like GetHostnames but it uses listShards instead of getShardMap
-// so it won't include config servers in the returned list
+// so it won't include config servers in the returned list.
 func GetShardedHosts(ctx context.Context, client *mongo.Client) ([]string, error) {
 	shardsInfo := &proto.ShardsInfo{}
+
 	res := client.Database("admin").RunCommand(ctx, primitive.M{"listShards": 1})
 	if res.Err() != nil {
 		return nil, errors.Wrap(res.Err(), "cannot list shards")
 	}
+
 	if err := res.Decode(&shardsInfo); err != nil {
 		return nil, errors.Wrap(err, "cannot decode listShards response")
 	}

 	hostnames := []string{}
+
 	for _, shardInfo := range shardsInfo.Shards {
 		m := strings.Split(shardInfo.Host, "/")
 		h := strings.Split(m[1], ",")
 		hostnames = append(hostnames, h[0])
 	}
+
 	return hostnames, nil
 }

@@ -248,6 +290,7 @@ func GetServerStatus(ctx context.Context, client *mongo.Client) (proto.ServerSta
 		{Key: "recordStats", Value: 1},
 	}
 	res := client.Database("admin").RunCommand(ctx, query)
+
 	if res.Err() != nil {
 		return ss, errors.Wrap(res.Err(), "GetHostInfo.serverStatus")
 	}
@@ -265,14 +308,17 @@ func GetQueryField(doc proto.SystemProfile) (primitive.M, error) {
 	// however MongoDB 3.0 doesn't have that field
 	// so we need to detect protocol by looking at actual data.
 	query := doc.Query
-	if len(doc.Command) > 0 {
+
+	if len(doc.Command) > 0 { //nolint
 		query = doc.Command
+
 		if doc.Op == "update" || doc.Op == "remove" {
 			if squery, ok := query.Map()["q"]; ok {
 				// just an extra check to ensure this type assertion won't fail
 				if ssquery, ok := squery.(primitive.M); ok {
 					return ssquery, nil
 				}
+
 				return nil, CannotGetQueryError
 			}
 		}
@@ -309,6 +355,7 @@ func GetQueryField(doc proto.SystemProfile) (primitive.M, error) {
 		if ssquery, ok := squery.(primitive.M); ok {
 			return ssquery, nil
 		}
+
 		return nil, CannotGetQueryError
 	}

@@ -317,6 +364,7 @@ func GetQueryField(doc proto.SystemProfile) (primitive.M, error) {
 		if ssquery, ok := squery.(primitive.M); ok {
 			return ssquery, nil
 		}
+
 		return nil, CannotGetQueryError
 	}

@@ -333,5 +381,173 @@ func GetQueryField(doc proto.SystemProfile) (primitive.M, error) {
 func GetClientForHost(co *options.ClientOptions, newHost string) (*mongo.Client, error) {
 	newOptions := options.MergeClientOptions(co, &options.ClientOptions{Hosts: []string{newHost}})
 	newOptions.SetDirect(true)
+
 	return mongo.NewClient(newOptions)
 }
+
+func GetHostInfo(ctx context.Context, client *mongo.Client) (*proto.GetHostInfo, error) {
+	hi := proto.HostInfo{}
+	if err := client.Database("admin").RunCommand(ctx, primitive.M{"hostInfo": 1}).Decode(&hi); err != nil {
+		log.Debugf("run('hostInfo') error: %s", err)
+		return nil, errors.Wrap(err, "GetHostInfo.hostInfo")
+	}
+
+	cmdOpts := proto.CommandLineOptions{}
+	query := primitive.D{{Key: "getCmdLineOpts", Value: 1}, {Key: "recordStats", Value: 1}}
+
+	err := client.Database("admin").RunCommand(ctx, query).Decode(&cmdOpts)
+	if err != nil {
+		return nil, errors.Wrap(err, "cannot get command line options")
+	}
+
+	ss := proto.ServerStatus{}
+	query = primitive.D{{Key: "serverStatus", Value: 1}, {Key: "recordStats", Value: 1}}
+
+	if err := client.Database("admin").RunCommand(ctx, query).Decode(&ss); err != nil {
+		return nil, errors.Wrap(err, "GetHostInfo.serverStatus")
+	}
+
+	pi := proto.ProcInfo{}
+	if err := fillProcInfo(int32(ss.Pid), &pi); err != nil {
+		pi.Error = err
+	}
+
+	nodeType, _ := getNodeType(ctx, client)
+	procCount, _ := countMongodProcesses()
+
+	i := &proto.GetHostInfo{
+		Hostname:          hi.System.Hostname,
+		HostOsType:        hi.Os.Type,
+		HostSystemCPUArch: hi.System.CpuArch,
+		DBPath:            "", // Sets default. It will be overridden later if necessary
+
+		ProcessName:      ss.Process,
+		ProcProcessCount: procCount,
+		Version:          ss.Version,
+		NodeType:         nodeType,
+
+		ProcPath:       pi.Path,
+		ProcUserName:   pi.UserName,
+		ProcCreateTime: pi.CreateTime,
+	}
+	if ss.Repl != nil {
+		i.ReplicasetName = ss.Repl.SetName
+	}
+
+	if cmdOpts.Parsed.Storage.DbPath != "" {
+		i.DBPath = cmdOpts.Parsed.Storage.DbPath
+	}
+
+	return i, nil
+}
+
+func ClusterID(ctx context.Context, client *mongo.Client) (string, error) {
+	var cv proto.ConfigVersion
+	if err := client.Database("config").Collection("version").FindOne(ctx, bson.M{}).Decode(&cv); err == nil {
+		return cv.ClusterID.Hex(), nil
+	}
+
+	var si proto.ShardIdentity
+
+	filter := bson.M{"_id": "shardIdentity"}
+
+	if err := client.Database("admin").Collection("system.version").FindOne(ctx, filter).Decode(&si); err == nil {
+		return si.ClusterID.Hex(), nil
+	}
+
+	rc, err := ReplicasetConfig(ctx, client)
+	if err != nil {
+		if e, ok := err.(mongo.CommandError); ok && IsReplicationNotEnabledError(e) {
+			return "", nil
+		}
+
+		return "", err
+	}
+
+	return rc.Config.Settings.ReplicaSetID.Hex(), nil
+}
+
+func IsReplicationNotEnabledError(err mongo.CommandError) bool {
+	return err.Code == ErrNotYetInitialized || err.Code == ErrNoReplicationEnabled
+}
+
+func MyState(ctx context.Context, client *mongo.Client) (int, error) {
+	var ms proto.MyState
+	if err := client.Database("admin").RunCommand(ctx, bson.M{"getDiagnosticData": 1}).Decode(&ms); err != nil {
+		return 0, err
+	}
+
+	return ms.Data.ReplicasetGetStatus.MyState, nil
+}
+
+func ReplicasetConfig(ctx context.Context, client *mongo.Client) (*proto.ReplicasetConfig, error) {
+	var rs proto.ReplicasetConfig
+	if err := client.Database("admin").RunCommand(ctx, bson.M{"replSetGetConfig": 1}).Decode(&rs); err != nil {
+		return nil, err
+	}
+
+	return &rs, nil
+}
+
+func fillProcInfo(pid int32, procInfo *proto.ProcInfo) error {
+	proc, err := process.NewProcess(pid)
+	if err != nil {
+		return errors.Wrapf(ErrCannotGetProcess, "%s", err)
+	}
+
+	ct, err := proc.CreateTime()
+	if err != nil {
+		return err
+	}
+
+	procInfo.CreateTime = time.Unix(ct/milliToSeconds, 0)
+
+	if procInfo.Path, err = proc.Exe(); err != nil {
+		return err
+	}
+
+	if procInfo.UserName, err = proc.Username(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func getNodeType(ctx context.Context, client *mongo.Client) (string, error) {
+	md := proto.MasterDoc{}
+	if err := client.Database("admin").RunCommand(ctx, primitive.M{"isMaster": 1}).Decode(&md); err != nil {
+		return "", err
+	}
+
+	if md.SetName != nil || md.Hosts != nil {
+		return TypeShardServer, nil
+	} else if md.Msg == TypeIsDBGrid {
+		// isdbgrid is always the msg value when calling isMaster on a mongos
+		// see http://docs.mongodb.org/manual/core/sharded-cluster-query-router/
+		return TypeMongos, nil
+	}
+
+	return TypeMongod, nil
+}
+
+func countMongodProcesses() (int, error) {
+	pids, err := process.Pids()
+	if err != nil {
+		return 0, err
+	}
+
+	count := 0
+
+	for _, pid := range pids {
+		p, err := process.NewProcess(pid)
+		if err != nil {
+			continue
+		}
+
+		if name, _ := p.Name(); name == TypeMongod || name == TypeMongos {
+			count++
+		}
+	}
+
+	return count, nil
+}
--- a/src/go/mongolib/util/util_test.go
+++ b/src/go/mongolib/util/util_test.go
@@ -8,6 +8,7 @@ import (
 	"time"

 	tu "github.com/percona/percona-toolkit/src/go/internal/testutils"
+	"github.com/stretchr/testify/assert"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
 )
@@ -21,33 +22,57 @@ func TestGetHostnames(t *testing.T) {
 	}{
 		{
 			name: "from_mongos",
-			uri:       fmt.Sprintf("mongodb://%s:%s@%s:%s", tu.MongoDBUser, tu.MongoDBPassword, tu.MongoDBHost, tu.MongoDBMongosPort),
+			uri: fmt.Sprintf("mongodb://%s:%s@%s:%s",
+				tu.MongoDBUser,
+				tu.MongoDBPassword,
+				tu.MongoDBHost,
+				tu.MongoDBMongosPort,
+			),
 			want:      []string{"127.0.0.1:17001", "127.0.0.1:17002", "127.0.0.1:17004", "127.0.0.1:17005", "127.0.0.1:17007"},
 			wantError: false,
 		},
 		{
 			name: "from_mongod",
-			uri:       fmt.Sprintf("mongodb://%s:%s@%s:%s", tu.MongoDBUser, tu.MongoDBPassword, tu.MongoDBHost, tu.MongoDBShard1PrimaryPort),
+			uri: fmt.Sprintf("mongodb://%s:%s@%s:%s",
+				tu.MongoDBUser,
+				tu.MongoDBPassword,
+				tu.MongoDBHost,
+				tu.MongoDBShard1PrimaryPort,
+			),
 			want:      []string{"127.0.0.1:17001", "127.0.0.1:17002", "127.0.0.1:17003"},
 			wantError: false,
 		},
 		{
 			name: "from_non_sharded",
-			uri:       fmt.Sprintf("mongodb://%s:%s@%s:%s", tu.MongoDBUser, tu.MongoDBPassword, tu.MongoDBHost, tu.MongoDBShard3PrimaryPort),
+			uri: fmt.Sprintf("mongodb://%s:%s@%s:%s",
+				tu.MongoDBUser,
+				tu.MongoDBPassword,
+				tu.MongoDBHost,
+				tu.MongoDBShard3PrimaryPort,
+			),
 			want:      []string{"127.0.0.1:17021", "127.0.0.1:17022", "127.0.0.1:17023"},
 			wantError: false,
 		},
 		{
 			name: "from_standalone",
-			uri:       fmt.Sprintf("mongodb://%s:%s@%s:%s", tu.MongoDBUser, tu.MongoDBPassword, tu.MongoDBHost, tu.MongoDBStandalonePort),
+			uri: fmt.Sprintf("mongodb://%s:%s@%s:%s",
+				tu.MongoDBUser,
+				tu.MongoDBPassword,
+				tu.MongoDBHost,
+				tu.MongoDBStandalonePort,
+			),
 			want:      nil,
 			wantError: true,
 		},
 	}

 	for _, test := range testCases {
+		uri := test.uri
+		want := test.want
+		wantError := test.wantError
+
 		t.Run(test.name, func(t *testing.T) {
-			client, err := mongo.NewClient(options.Client().ApplyURI(test.uri))
+			client, err := mongo.NewClient(options.Client().ApplyURI(uri))
 			if err != nil {
 				t.Fatalf("cannot get a new MongoDB client: %s", err)
 			}
@@ -59,12 +84,12 @@ func TestGetHostnames(t *testing.T) {
 			}

 			hostnames, err := GetHostnames(ctx, client)
-			if err != nil && !test.wantError {
+			if err != nil && !wantError {
 				t.Errorf("Expecting error=nil, got: %v", err)
 			}

-			if !reflect.DeepEqual(hostnames, test.want) {
-				t.Errorf("Invalid hostnames. Got: %+v, want %+v", hostnames, test.want)
+			if !reflect.DeepEqual(hostnames, want) {
+				t.Errorf("Invalid hostnames. Got: %+v, want %+v", hostnames, want)
 			}
 		})
 	}
@@ -194,3 +219,139 @@ func TestGetShardedHosts(t *testing.T) {
 		})
 	}
 }
+
+func TestReplicasetConfig(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	tcs := []struct {
+		port             string
+		wantID           string
+		wantConfigServer bool
+		wantError        error
+	}{
+		{
+			port:             tu.MongoDBStandalonePort,
+			wantID:           "",
+			wantConfigServer: false,
+			wantError: mongo.CommandError{
+				Code:    76,
+				Message: "not running with --replSet",
+				Labels:  []string(nil),
+				Name:    "NoReplicationEnabled",
+			},
+		},
+		{
+			port:             tu.MongoDBMongosPort,
+			wantID:           "",
+			wantConfigServer: false,
+			wantError: mongo.CommandError{
+				Code:    59,
+				Message: "no such cmd: replSetGetConfig",
+				Labels:  []string(nil),
+				Name:    "CommandNotFound",
+			},
+		},
+		{
+			port:             tu.MongoDBShard1PrimaryPort,
+			wantID:           "rs1",
+			wantConfigServer: false,
+		},
+		{
+			port:             tu.MongoDBConfigsvr1Port,
+			wantID:           "csReplSet",
+			wantConfigServer: true,
+		},
+	}
+
+	for _, tc := range tcs {
+		client, err := tu.TestClient(ctx, tc.port)
+		assert.NoError(t, err)
+
+		rs, err := ReplicasetConfig(ctx, client)
+		assert.Equal(t, tc.wantError, err, fmt.Sprintf("%v", tc.port))
+
+		if tc.wantError != nil {
+			continue
+		}
+
+		assert.Equal(t, tc.wantID, rs.Config.ID)
+		assert.Equal(t, tc.wantConfigServer, rs.Config.ConfigServer)
+		assert.NotEmpty(t, rs.Config.Settings.ReplicaSetID.Hex())
+	}
+}
+
+func TestClusterID(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	tcs := []struct {
+		port    string
+		emptyID bool
+	}{
+		{
+			port:    tu.MongoDBMongosPort,
+			emptyID: false,
+		},
+		{
+			port:    tu.MongoDBShard1PrimaryPort,
+			emptyID: false,
+		},
+		{
+			port:    tu.MongoDBShard1Secondary1Port,
+			emptyID: false,
+		},
+		{
+			port:    tu.MongoDBConfigsvr1Port,
+			emptyID: false,
+		},
+		{
+			port:    tu.MongoDBStandalonePort,
+			emptyID: true,
+		},
+	}
+
+	for _, tc := range tcs {
+		client, err := tu.TestClient(ctx, tc.port)
+		assert.NoError(t, err)
+		cid, err := ClusterID(ctx, client)
+		assert.NoError(t, err, fmt.Sprintf("port: %v", tc.port))
+		assert.Equal(t, cid == "", tc.emptyID)
+	}
+}
+
+func TestMyState(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	tcs := []struct {
+		port string
+		want int
+	}{
+		{
+			port: tu.MongoDBShard1PrimaryPort,
+			want: 1,
+		},
+		{
+			port: tu.MongoDBShard1Secondary1Port,
+			want: 2,
+		},
+		{
+			port: tu.MongoDBMongosPort,
+			want: 0,
+		},
+		{
+			port: tu.MongoDBStandalonePort,
+			want: 0,
+		},
+	}
+
+	for _, tc := range tcs {
+		client, err := tu.TestClient(ctx, tc.port)
+		assert.NoError(t, err)
+
+		state, err := MyState(ctx, client)
+		assert.NoError(t, err)
+		assert.Equal(t, tc.want, state, fmt.Sprintf("port: %v", tc.port))
+	}
+}
--- a/src/go/pt-mongodb-query-digest/main.go
+++ b/src/go/pt-mongodb-query-digest/main.go
@@ -70,7 +70,6 @@ type report struct {
 }

 func main() {
-
 	opts, err := getOptions()
 	if err != nil {
 		log.Errorf("error processing command line arguments: %s", err)
@@ -193,7 +192,6 @@ func main() {
 	}

 	fmt.Println(string(out))
-
 }

 func formatResults(rep report, outputFormat string) ([]byte, error) {
@@ -368,7 +366,6 @@ func getHeaders(opts *cliOptions) []string {
 }

 func getQueryTemplate() string {
-
 	t := `
 # Query {{.Rank}}: {{printf "% 0.2f" .QPS}} QPS, ID {{.ID}}
 # Ratio {{Format .Ratio 7.2}} (docs scanned/returned)
@@ -522,7 +519,6 @@ func sortQueries(queries []stats.QueryStats, orderby []string) []stats.QueryStat

 	OrderedBy(sortFuncs...).Sort(queries)
 	return queries
-
 }

 func isProfilerEnabled(ctx context.Context, clientOptions *options.ClientOptions) (bool, error) {
--- a/src/go/pt-mongodb-summary/main.go
+++ b/src/go/pt-mongodb-summary/main.go
@@ -3,11 +3,16 @@ package main
 import (
 	"bytes"
 	"context"
+	"crypto/tls"
+	"crypto/x509"
 	"encoding/json"
 	"fmt"
 	"html/template"
+	"io/ioutil"
 	"net"
 	"os"
+	"os/user"
+	"path/filepath"
 	"strings"
 	"time"

@@ -39,18 +44,23 @@ const (
 	DefaultOutputFormat       = "text"
 	typeMongos                = "mongos"

-	// Exit Codes
+	// Exit Codes.
 	cannotFormatResults              = 1
 	cannotParseCommandLineParameters = 2
 	cannotGetHostInfo                = 3
-	cannotGetReplicasetMembers       = 4
+	cannotGetClientOptions           = 4
+	cannotConnectToMongoDB           = 5
 )

+//nolint:gochecknoglobals
 var (
-	Build     string = "2020-04-23" // nolint
-	GoVersion string = "1.14.1"     // nolint
+	Build     string = "2020-04-23"
+	GoVersion string = "1.14.1"
 	Version   string = "3.2.0"
 	Commit    string
+
+	defaultConnectionTimeout = 3 * time.Second
+	directConnection         = true
 )

 type TimedStats struct {
@@ -69,6 +79,7 @@ type opCounters struct {
 	Command    TimedStats
 	SampleRate time.Duration
 }
+
 type hostInfo struct {
 	Hostname          string
 	HostOsType        string
@@ -164,14 +175,11 @@ func main() {
 	opts, err := parseFlags()
 	if err != nil {
 		log.Errorf("cannot get parameters: %s", err.Error())
+
 		os.Exit(cannotParseCommandLineParameters)
 	}
-	if opts == nil && err == nil {
-		return
-	}

-	if opts.Help {
-		getopt.Usage()
+	if opts == nil && err == nil {
 		return
 	}

@@ -187,6 +195,7 @@ func main() {
 		fmt.Printf("Version %s\n", Version)
 		fmt.Printf("Build: %s using %s\n", Build, GoVersion)
 		fmt.Printf("Commit: %s\n", Commit)
+
 		return
 	}

@@ -201,34 +210,46 @@ func main() {
 	}

 	ctx := context.Background()
-	clientOptions := getClientOptions(opts)
+	clientOptions, err := getClientOptions(opts)
+	if err != nil {
+		log.Error(err)
+
+		os.Exit(cannotGetClientOptions)
+	}
+
 	client, err := mongo.NewClient(clientOptions)
 	if err != nil {
-		log.Fatalf("Cannot get a MongoDB client: %s", err)
+		log.Errorf("Cannot get a MongoDB client: %s", err)
+
+		os.Exit(cannotConnectToMongoDB)
 	}
+
 	if err := client.Connect(ctx); err != nil {
-		log.Fatalf("Cannot connect to MongoDB: %s", err)
+		log.Errorf("Cannot connect to MongoDB: %s", err)
+		os.Exit(cannotConnectToMongoDB)
 	}
+
 	defer client.Disconnect(ctx) // nolint

 	hostnames, err := util.GetHostnames(ctx, client)
 	if err != nil && errors.Is(err, util.ShardingNotEnabledError) {
 		log.Errorf("Cannot get hostnames: %s", err)
 	}
+
 	log.Debugf("hostnames: %v", hostnames)

 	ci := &collectedInfo{}

 	ci.HostInfo, err = getHostInfo(ctx, client)
 	if err != nil {
-		message := fmt.Sprintf("Cannot get host info for %q: %s", opts.Host, err.Error())
-		log.Errorf(message)
-		os.Exit(cannotGetHostInfo)
+		log.Errorf("Cannot get host info for %q: %s", opts.Host, err)
+		os.Exit(cannotGetHostInfo) //nolint:gocritic
 	}

 	if ci.ReplicaMembers, err = util.GetReplicasetMembers(ctx, clientOptions); err != nil {
 		log.Warnf("[Error] cannot get replicaset members: %v\n", err)
 	}
+
 	log.Debugf("replicaMembers:\n%+v\n", ci.ReplicaMembers)

 	if opts.RunningOpsSamples > 0 && opts.RunningOpsInterval > 0 {
@@ -274,9 +295,10 @@ func main() {

 	out, err := formatResults(ci, opts.OutputFormat)
 	if err != nil {
-		log.Errorf("Cannot format the results: %s", err.Error())
+		log.Errorf("Cannot format the results: %s", err)
 		os.Exit(cannotFormatResults)
 	}
+
 	fmt.Println(string(out))
 }

@@ -287,8 +309,9 @@ func formatResults(ci *collectedInfo, format string) ([]byte, error) {
 	case "json":
 		b, err := json.MarshalIndent(ci, "", "    ")
 		if err != nil {
-			return nil, fmt.Errorf("[Error] Cannot convert results to json: %s", err.Error())
+			return nil, errors.Wrap(err, "Cannot convert results to json")
 		}
+
 		buf = bytes.NewBuffer(b)
 	default:
 		buf = new(bytes.Buffer)
@@ -338,6 +361,7 @@ func getHostInfo(ctx context.Context, client *mongo.Client) (*hostInfo, error) {
 	hi := proto.HostInfo{}
 	if err := client.Database("admin").RunCommand(ctx, primitive.M{"hostInfo": 1}).Decode(&hi); err != nil {
 		log.Debugf("run('hostInfo') error: %s", err)
+
 		return nil, errors.Wrap(err, "GetHostInfo.hostInfo")
 	}

@@ -393,12 +417,15 @@ func countMongodProcesses() (int, error) {
 	if err != nil {
 		return 0, err
 	}
+
 	count := 0
+
 	for _, pid := range pids {
 		p, err := process.NewProcess(pid)
 		if err != nil {
 			continue
 		}
+
 		if name, _ := p.Name(); name == "mongod" || name == typeMongos {
 			count++
 		}
@@ -440,6 +467,7 @@ func getClusterwideInfo(ctx context.Context, client *mongo.Client) (*clusterwide
 			if collStats.Sharded {
 				cwi.ShardedDataSize += collStats.Size
 				cwi.ShardedColsCount++
+
 				continue
 			}

@@ -464,11 +492,14 @@ func sizeAndUnit(size int64) (float64, string) {
 	unit := []string{"bytes", "KB", "MB", "GB", "TB"}
 	idx := 0
 	newSize := float64(size)
+
 	for newSize > 1024 {
 		newSize /= 1024
 		idx++
 	}
+
 	newSize = float64(int64(newSize*100)) / 100
+
 	return newSize, unit[idx]
 }

@@ -486,7 +517,10 @@ func getSecuritySettings(ctx context.Context, client *mongo.Client, ver string)
 	}

 	cmdOpts := proto.CommandLineOptions{}
-	err = client.Database("admin").RunCommand(ctx, primitive.D{{"getCmdLineOpts", 1}, {"recordStats", 1}}).Decode(&cmdOpts)
+	err = client.Database("admin").RunCommand(ctx, primitive.D{
+		{Key: "getCmdLineOpts", Value: 1},
+		{Key: "recordStats", Value: 1},
+	}).Decode(&cmdOpts)
 	if err != nil {
 		return nil, errors.Wrap(err, "cannot get command line options")
 	}
@@ -503,7 +537,7 @@ func getSecuritySettings(ctx context.Context, client *mongo.Client, ver string)
 	s.BindIP = cmdOpts.Parsed.Net.BindIP
 	s.Port = cmdOpts.Parsed.Net.Port

-	if cmdOpts.Parsed.Net.BindIP == "" {
+	if cmdOpts.Parsed.Net.BindIP == "" { //nolint:nestif
 		if prior26 {
 			s.WarningMsgs = append(s.WarningMsgs, "WARNING: You might be insecure. There is no IP binding")
 		}
@@ -586,7 +620,11 @@ func getOpCountersStats(ctx context.Context, client *mongo.Client, count int,
 	// count + 1 because we need 1st reading to stablish a base to measure variation
 	for i := 0; i < count+1; i++ {
 		<-ticker.C
-		err := client.Database("admin").RunCommand(ctx, primitive.D{{"serverStatus", 1}, {"recordStats", 1}}).Decode(&ss)
+
+		err := client.Database("admin").RunCommand(ctx, primitive.D{
+			{Key: "serverStatus", Value: 1},
+			{Key: "recordStats", Value: 1},
+		}).Decode(&ss)
 		if err != nil {
 			return nil, err
 		}
@@ -598,6 +636,7 @@ func getOpCountersStats(ctx context.Context, client *mongo.Client, count int,
 			prevOpCount.Insert.Total = ss.Opcounters.Insert
 			prevOpCount.Query.Total = ss.Opcounters.Query
 			prevOpCount.Update.Total = ss.Opcounters.Update
+
 			continue
 		}

@@ -631,57 +670,63 @@ func getOpCountersStats(ctx context.Context, client *mongo.Client, count int,
 		}

 		// Insert --------------------------------------
-		if delta.Opcounters.Insert > oc.Insert.Max {
+		switch {
+		case delta.Opcounters.Insert > oc.Insert.Max:
 			oc.Insert.Max = delta.Opcounters.Insert
-		}
-		if delta.Opcounters.Insert < oc.Insert.Min {
+		case delta.Opcounters.Insert < oc.Insert.Min:
 			oc.Insert.Min = delta.Opcounters.Insert
 		}
+
 		oc.Insert.Total += delta.Opcounters.Insert

 		// Query ---------------------------------------
-		if delta.Opcounters.Query > oc.Query.Max {
+		switch {
+		case delta.Opcounters.Query > oc.Query.Max:
 			oc.Query.Max = delta.Opcounters.Query
-		}
-		if delta.Opcounters.Query < oc.Query.Min {
+		case delta.Opcounters.Query < oc.Query.Min:
 			oc.Query.Min = delta.Opcounters.Query
 		}
+
 		oc.Query.Total += delta.Opcounters.Query

 		// Command -------------------------------------
-		if delta.Opcounters.Command > oc.Command.Max {
+		switch {
+		case delta.Opcounters.Command > oc.Command.Max:
 			oc.Command.Max = delta.Opcounters.Command
-		}
-		if delta.Opcounters.Command < oc.Command.Min {
+		case delta.Opcounters.Command < oc.Command.Min:
 			oc.Command.Min = delta.Opcounters.Command
 		}
+
 		oc.Command.Total += delta.Opcounters.Command

 		// Update --------------------------------------
-		if delta.Opcounters.Update > oc.Update.Max {
+		switch {
+		case delta.Opcounters.Update > oc.Update.Max:
 			oc.Update.Max = delta.Opcounters.Update
-		}
-		if delta.Opcounters.Update < oc.Update.Min {
+		case delta.Opcounters.Update < oc.Update.Min:
 			oc.Update.Min = delta.Opcounters.Update
 		}
+
 		oc.Update.Total += delta.Opcounters.Update

 		// Delete --------------------------------------
-		if delta.Opcounters.Delete > oc.Delete.Max {
+		switch {
+		case delta.Opcounters.Delete > oc.Delete.Max:
 			oc.Delete.Max = delta.Opcounters.Delete
-		}
-		if delta.Opcounters.Delete < oc.Delete.Min {
+		case delta.Opcounters.Delete < oc.Delete.Min:
 			oc.Delete.Min = delta.Opcounters.Delete
 		}
+
 		oc.Delete.Total += delta.Opcounters.Delete

 		// GetMore -------------------------------------
-		if delta.Opcounters.GetMore > oc.GetMore.Max {
+		switch {
+		case delta.Opcounters.GetMore > oc.GetMore.Max:
 			oc.GetMore.Max = delta.Opcounters.GetMore
-		}
-		if delta.Opcounters.GetMore < oc.GetMore.Min {
+		case delta.Opcounters.GetMore < oc.GetMore.Min:
 			oc.GetMore.Min = delta.Opcounters.GetMore
 		}
+
 		oc.GetMore.Total += delta.Opcounters.GetMore

 		prevOpCount.Insert.Total = ss.Opcounters.Insert
@@ -690,8 +735,8 @@ func getOpCountersStats(ctx context.Context, client *mongo.Client, count int,
 		prevOpCount.Update.Total = ss.Opcounters.Update
 		prevOpCount.Delete.Total = ss.Opcounters.Delete
 		prevOpCount.GetMore.Total = ss.Opcounters.GetMore
-
 	}
+
 	ticker.Stop()

 	oc.Insert.Avg = oc.Insert.Total
@@ -710,8 +755,9 @@ func getProcInfo(pid int32, templateData *procInfo) error {
 	// proc, err := process.NewProcess(templateData.ServerStatus.Pid)
 	proc, err := process.NewProcess(pid)
 	if err != nil {
-		return fmt.Errorf("cannot get process %d", pid)
+		return errors.New(fmt.Sprintf("cannot get process %d", pid))
 	}
+
 	ct, err := proc.CreateTime()
 	if err != nil {
 		return err
@@ -742,6 +788,7 @@ func GetBalancerStats(ctx context.Context, client *mongo.Client) (*proto.Balance
 		event := item.Id.Event
 		note := item.Id.Note
 		count := item.Count
+
 		switch event {
 		case "moveChunk.to", "moveChunk.from", "moveChunk.commit":
 			if note == "success" || note == "" {
@@ -760,7 +807,7 @@ func GetBalancerStats(ctx context.Context, client *mongo.Client) (*proto.Balance
 }

 func GetShardingChangelogStatus(ctx context.Context, client *mongo.Client) (*proto.ShardingChangelogStats, error) {
-	var qresults []proto.ShardingChangelogSummary
+	qresults := []proto.ShardingChangelogSummary{}
 	coll := client.Database("config").Collection("changelog")
 	match := primitive.M{"time": primitive.M{"$gt": time.Now().Add(-240 * time.Hour)}}
 	group := primitive.M{"_id": primitive.M{"event": "$what", "note": "$details.note"}, "count": primitive.M{"$sum": 1}}
@@ -776,6 +823,7 @@ func GetShardingChangelogStatus(ctx context.Context, client *mongo.Client) (*pro
 		if err := cursor.Decode(&res); err != nil {
 			return nil, errors.Wrap(err, "cannot decode GetShardingChangelogStatus")
 		}
+
 		qresults = append(qresults, res)
 	}

@@ -796,6 +844,7 @@ func isPrivateNetwork(ip string) (bool, error) {
 		if err != nil {
 			return false, err
 		}
+
 		addr := net.ParseIP(ip)
 		if cidrnet.Contains(addr) {
 			return true, nil
@@ -803,7 +852,6 @@ func isPrivateNetwork(ip string) (bool, error) {
 	}

 	return false, nil
-
 }

 func externalIP() (string, error) {
@@ -811,17 +859,21 @@ func externalIP() (string, error) {
 	if err != nil {
 		return "", err
 	}
+
 	for _, iface := range ifaces {
 		if iface.Flags&net.FlagUp == 0 {
 			continue // interface down
 		}
+
 		if iface.Flags&net.FlagLoopback != 0 {
 			continue // loopback interface
 		}
+
 		addrs, err := iface.Addrs()
 		if err != nil {
 			return "", err
 		}
+
 		for _, addr := range addrs {
 			var ip net.IP
 			switch v := addr.(type) {
@@ -830,9 +882,11 @@ func externalIP() (string, error) {
 			case *net.IPAddr:
 				ip = v.IP
 			}
+
 			if ip == nil || ip.IsLoopback() {
 				continue
 			}
+
 			ip = ip.To4()
 			if ip == nil {
 				continue // not an ipv4 address
@@ -840,6 +894,7 @@ func externalIP() (string, error) {
 			return ip.String(), nil
 		}
 	}
+
 	return "", errors.New("are you connected to the network?")
 }

@@ -880,8 +935,8 @@ func parseFlags() (*cliOptions, error) {
 	gop.StringVarLong(&opts.SSLPEMKeyFile, "sslPEMKeyFile", 0, "SSL client PEM file used for authentication")

 	gop.SetParameters("host[:port]")
-
 	gop.Parse(os.Args)
+
 	if gop.NArgs() > 0 {
 		opts.Host = gop.Arg(0)
 		gop.Parse(gop.Args())
@@ -889,19 +944,25 @@ func parseFlags() (*cliOptions, error) {

 	if gop.IsSet("password") && opts.Password == "" {
 		print("Password: ")
+
 		pass, err := gopass.GetPasswd()
 		if err != nil {
 			return opts, err
 		}
+
 		opts.Password = string(pass)
 	}
+
 	if !strings.HasPrefix(opts.Host, "mongodb://") {
 		opts.Host = "mongodb://" + opts.Host
 	}
+
 	if opts.Help {
 		gop.PrintUsage(os.Stdout)
+
 		return nil, nil
 	}
+
 	if opts.OutputFormat != "json" && opts.OutputFormat != "text" {
 		log.Infof("Invalid output format '%s'. Using text format", opts.OutputFormat)
 	}
@@ -920,27 +981,93 @@ func getChunksCount(ctx context.Context, client *mongo.Client) ([]proto.ChunksBy
 	if err != nil {
 		return nil, err
 	}
+
 	for cursor.Next(ctx) {
 		res := proto.ChunksByCollection{}
 		if err := cursor.Decode(&res); err != nil {
 			return nil, errors.Wrap(err, "cannot decode chunks aggregation")
 		}
+
 		result = append(result, res)
 	}
+
 	return result, nil
 }

-func getClientOptions(opts *cliOptions) *options.ClientOptions {
+func getClientOptions(opts *cliOptions) (*options.ClientOptions, error) {
 	clientOptions := options.Client().ApplyURI(opts.Host)
+
+	clientOptions.ServerSelectionTimeout = &defaultConnectionTimeout
+	clientOptions.Direct = &directConnection
 	credential := options.Credential{}
 	if opts.User != "" {
 		credential.Username = opts.User
 		clientOptions.SetAuth(credential)
 	}
+
 	if opts.Password != "" {
 		credential.Password = opts.Password
 		credential.PasswordSet = true
 		clientOptions.SetAuth(credential)
 	}
-	return clientOptions
+
+	if opts.SSLPEMKeyFile != "" || opts.SSLCAFile != "" {
+		tlsConfig, err := getTLSConfig(opts.SSLPEMKeyFile, opts.SSLCAFile)
+		if err != nil {
+			return nil, errors.Wrap(err, "cannot read SSL certificate files")
+		}
+
+		clientOptions.TLSConfig = tlsConfig
+	}
+
+	return clientOptions, nil
+}
+
+func getTLSConfig(sslPEMKeyFile, sslCAFile string) (*tls.Config, error) {
+	tlsConfig := &tls.Config{
+		MinVersion:         tls.VersionTLS10,
+		InsecureSkipVerify: true,
+	}
+
+	roots := x509.NewCertPool()
+
+	if sslPEMKeyFile != "" {
+		crt, err := ioutil.ReadFile(filepath.Clean(expandHome(sslPEMKeyFile)))
+		if err != nil {
+			return nil, err
+		}
+
+		cert, err := tls.X509KeyPair(crt, crt)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		tlsConfig.Certificates = []tls.Certificate{cert}
+	}
+
+	if sslCAFile != "" {
+		ca, err := ioutil.ReadFile(filepath.Clean(expandHome(sslCAFile)))
+		if err != nil {
+			return nil, err
+		}
+
+		roots.AppendCertsFromPEM(ca)
+		tlsConfig.RootCAs = roots
+	}
+
+	return tlsConfig, nil
+}
+
+func expandHome(path string) string {
+	usr, _ := user.Current()
+	dir := usr.HomeDir
+
+	switch {
+	case path == "~":
+		path = dir
+	case strings.HasPrefix(path, "~/"):
+		path = filepath.Join(dir, path[2:])
+	}
+
+	return path
 }
--- a/src/go/pt-mongodb-summary/main_test.go
+++ b/src/go/pt-mongodb-summary/main_test.go
@@ -99,8 +99,8 @@ func TestClusterWideInfo(t *testing.T) {
 			}
 		})
 	}
-
 }
+
 func addToCounters(ss proto.ServerStatus, increment int64) proto.ServerStatus {
 	ss.Opcounters.Command += increment
 	ss.Opcounters.Delete += increment
--- a/src/go/pt-mongodb-summary/oplog/oplog.go
+++ b/src/go/pt-mongodb-summary/oplog/oplog.go
@@ -85,7 +85,6 @@ func GetOplogInfo(ctx context.Context, hostnames []string, co *options.ClientOpt

 	sort.Sort(results)
 	return results, nil
-
 }

 func getOplogCollection(ctx context.Context, client *mongo.Client) (string, error) {
--- a/src/go/pt-pg-summary/main.go
+++ b/src/go/pt-pg-summary/main.go
@@ -31,6 +31,7 @@ type connOpts struct {
 	Password   string
 	DisableSSL bool
 }
+
 type cliOptions struct {
 	app                 *kingpin.Application
 	connOpts            connOpts
@@ -110,7 +111,6 @@ func main() {
 	if err := masterTmpl.ExecuteTemplate(os.Stdout, "report", info); err != nil {
 		log.Fatal(err)
 	}
-
 }

 func connect(dsn string) (*sql.DB, error) {
--- a/src/go/pt-pg-summary/main_test.go
+++ b/src/go/pt-pg-summary/main_test.go
@@ -5,8 +5,8 @@ import (
 	"os"
 	"testing"

-	"github.com/percona/percona-toolkit/src/go/pt-pg-summary/internal/tu"
 	"github.com/percona/percona-toolkit/src/go/lib/pginfo"
+	"github.com/percona/percona-toolkit/src/go/pt-pg-summary/internal/tu"

 	"github.com/sirupsen/logrus"
 )
@@ -48,7 +48,6 @@ func TestConnection(t *testing.T) {
 			}
 		})
 	}
-
 }

 func TestNewWithLogger(t *testing.T) {
@@ -57,7 +56,7 @@ func TestNewWithLogger(t *testing.T) {
 		t.Run(test.name, func(t *testing.T) {
 			dsn := fmt.Sprintf("host=%s port=%s user=%s password=%s sslmode=disable dbname=%s",
 				test.host, test.port, test.username, test.password, "postgres")
-			db, err := connect(dsn);
+			db, err := connect(dsn)
 			if err != nil {
 				t.Errorf("Cannot connect to the db using %q: %s", dsn, err)
 			}
@@ -68,18 +67,17 @@ func TestNewWithLogger(t *testing.T) {
 	}
 }

-
 func TestCollectGlobalInfo(t *testing.T) {
 	for _, test := range tests {
 		test := test
 		t.Run(test.name, func(t *testing.T) {
 			dsn := fmt.Sprintf("host=%s port=%s user=%s password=%s sslmode=disable dbname=%s",
 				test.host, test.port, test.username, test.password, "postgres")
-			db, err := connect(dsn);
+			db, err := connect(dsn)
 			if err != nil {
 				t.Errorf("Cannot connect to the db using %q: %s", dsn, err)
 			}
-			info, err := pginfo.NewWithLogger(db, nil, 30, logger);
+			info, err := pginfo.NewWithLogger(db, nil, 30, logger)
 			if err != nil {
 				t.Errorf("Cannot run NewWithLogger using %q: %s", dsn, err)
 			}
@@ -101,18 +99,18 @@ func TestCollectPerDatabaseInfo(t *testing.T) {
 		t.Run(test.name, func(t *testing.T) {
 			dsn := fmt.Sprintf("host=%s port=%s user=%s password=%s sslmode=disable dbname=%s",
 				test.host, test.port, test.username, test.password, "postgres")
-			db, err := connect(dsn);
+			db, err := connect(dsn)
 			if err != nil {
 				t.Errorf("Cannot connect to the db using %q: %s", dsn, err)
 			}
-			info, err := pginfo.NewWithLogger(db, nil, 30, logger);
+			info, err := pginfo.NewWithLogger(db, nil, 30, logger)
 			if err != nil {
 				t.Errorf("Cannot run New using %q: %s", dsn, err)
 			}
 			for _, dbName := range info.DatabaseNames() {
 				dsn := fmt.Sprintf("host=%s port=%s user=%s password=%s sslmode=disable dbname=%s",
 					test.host, test.port, test.username, test.password, dbName)
-				conn, err := connect(dsn);
+				conn, err := connect(dsn)
 				if err != nil {
 					t.Errorf("Cannot connect to the %s database using %q: %s", dbName, dsn, err)
 				}
--- a/src/go/pt-pg-summary/models/alldatabases.xo.go
+++ b/src/go/pt-pg-summary/models/alldatabases.xo.go
@@ -13,7 +13,7 @@ func GetAllDatabases(db XODB) ([]*AllDatabases, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT datname ` +
+	sqlstr := `SELECT datname ` +
 		`FROM pg_database ` +
 		`WHERE datistemplate = false`

--- a/src/go/pt-pg-summary/models/clusterinfo.xo.go
+++ b/src/go/pt-pg-summary/models/clusterinfo.xo.go
@@ -24,7 +24,7 @@ func GetClusterInfos(db XODB) ([]*ClusterInfo, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT usename, now() AS "Time", ` +
+	sqlstr := `SELECT usename, now() AS "Time", ` +
 		`client_addr, ` +
 		`client_hostname, ` +
 		`version() AS version, ` +
--- a/src/go/pt-pg-summary/models/connectedclients.xo.go
+++ b/src/go/pt-pg-summary/models/connectedclients.xo.go
@@ -20,7 +20,7 @@ func GetConnectedClients(db XODB) ([]*ConnectedClients, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT usename, ` +
+	sqlstr := `SELECT usename, ` +
 		`CASE WHEN client_hostname IS NULL THEN client_addr::text ELSE client_hostname END AS client, ` +
 		`state, count(*) ` +
 		`FROM pg_stat_activity ` +
--- a/src/go/pt-pg-summary/models/connections.xo.go
+++ b/src/go/pt-pg-summary/models/connections.xo.go
@@ -14,7 +14,7 @@ func GetConnections(db XODB) ([]*Connections, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT state, count(*) ` +
+	sqlstr := `SELECT state, count(*) ` +
 		`FROM pg_stat_activity ` +
 		`GROUP BY 1`

--- a/src/go/pt-pg-summary/models/counters.xo.go
+++ b/src/go/pt-pg-summary/models/counters.xo.go
@@ -27,7 +27,7 @@ func GetCounters(db XODB) ([]*Counters, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT COALESCE(datname, '') datname, numbackends, xact_commit, xact_rollback, ` +
+	sqlstr := `SELECT COALESCE(datname, '') datname, numbackends, xact_commit, xact_rollback, ` +
 		`blks_read, blks_hit, tup_returned, tup_fetched, tup_inserted, ` +
 		`tup_updated, tup_deleted, conflicts, temp_files, ` +
 		`temp_bytes, deadlocks ` +
--- a/src/go/pt-pg-summary/models/databases.xo.go
+++ b/src/go/pt-pg-summary/models/databases.xo.go
@@ -14,7 +14,7 @@ func GetDatabases(db XODB) ([]*Databases, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT datname, pg_size_pretty(pg_database_size(datname)) ` +
+	sqlstr := `SELECT datname, pg_size_pretty(pg_database_size(datname)) ` +
 		`FROM pg_stat_database ` +
 		`WHERE datid <> 0`

--- a/src/go/pt-pg-summary/models/databasewaitevents.xo.go
+++ b/src/go/pt-pg-summary/models/databasewaitevents.xo.go
@@ -22,7 +22,7 @@ func GetDatabaseWaitEvents(db XODB) ([]*DatabaseWaitEvents, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT c.relname, c.relkind, d.wait_event_type, d.wait_event, b.datname, count(*) ` +
+	sqlstr := `SELECT c.relname, c.relkind, d.wait_event_type, d.wait_event, b.datname, count(*) ` +
 		`FROM pg_locks a ` +
 		`JOIN pg_stat_database b ON a.database=b.datid ` +
 		`JOIN pg_class c ON a.relation=c.oid ` +
--- a/src/go/pt-pg-summary/models/portanddatadir.xo.go
+++ b/src/go/pt-pg-summary/models/portanddatadir.xo.go
@@ -14,7 +14,7 @@ func GetPortAndDatadir(db XODB) (*PortAndDatadir, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT name, ` +
+	sqlstr := `SELECT name, ` +
 		`setting ` +
 		`FROM pg_settings ` +
 		`WHERE name IN ('port','data_directory')`
--- a/src/go/pt-pg-summary/models/slavehosts10.xo.go
+++ b/src/go/pt-pg-summary/models/slavehosts10.xo.go
@@ -20,7 +20,7 @@ func GetSlaveHosts10s(db XODB) ([]*SlaveHosts10, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT application_name, client_addr, state, sent_offset - (replay_offset - (sent_lsn - replay_lsn) * 255 * 16 ^ 6 ) AS byte_lag ` +
+	sqlstr := `SELECT application_name, client_addr, state, sent_offset - (replay_offset - (sent_lsn - replay_lsn) * 255 * 16 ^ 6 ) AS byte_lag ` +
 		`FROM ( SELECT application_name, client_addr, client_hostname, state, ` +
 		`('x' || lpad(split_part(sent_lsn::TEXT,   '/', 1), 8, '0'))::bit(32)::bigint AS sent_lsn, ` +
 		`('x' || lpad(split_part(replay_lsn::TEXT, '/', 1), 8, '0'))::bit(32)::bigint AS replay_lsn, ` +
--- a/src/go/pt-pg-summary/models/slavehosts96.xo.go
+++ b/src/go/pt-pg-summary/models/slavehosts96.xo.go
@@ -20,7 +20,7 @@ func GetSlaveHosts96s(db XODB) ([]*SlaveHosts96, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT application_name, client_addr, state, sent_offset - (replay_offset - (sent_xlog - replay_xlog) * 255 * 16 ^ 6 ) AS byte_lag ` +
+	sqlstr := `SELECT application_name, client_addr, state, sent_offset - (replay_offset - (sent_xlog - replay_xlog) * 255 * 16 ^ 6 ) AS byte_lag ` +
 		`FROM ( SELECT application_name, client_addr, client_hostname, state, ` +
 		`('x' || lpad(split_part(sent_location::TEXT,   '/', 1), 8, '0'))::bit(32)::bigint AS sent_xlog, ` +
 		`('x' || lpad(split_part(replay_location::TEXT, '/', 1), 8, '0'))::bit(32)::bigint AS replay_xlog, ` +
--- a/src/go/pt-pg-summary/models/tableaccess.xo.go
+++ b/src/go/pt-pg-summary/models/tableaccess.xo.go
@@ -20,7 +20,7 @@ func GetTableAccesses(db XODB) ([]*TableAccess, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT c.relname, c.relkind, b.datname datname, count(*) FROM pg_locks a ` +
+	sqlstr := `SELECT c.relname, c.relkind, b.datname datname, count(*) FROM pg_locks a ` +
 		`JOIN pg_stat_database b ` +
 		`ON a.database=b.datid ` +
 		`JOIN pg_class c ` +
--- a/src/go/pt-pg-summary/models/tablecachehitratio.xo.go
+++ b/src/go/pt-pg-summary/models/tablecachehitratio.xo.go
@@ -18,7 +18,7 @@ func GetTableCacheHitRatio(db XODB) (*TableCacheHitRatio, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT 'cache hit rate' AS name, ` +
+	sqlstr := `SELECT 'cache hit rate' AS name, ` +
 		`CASE WHEN (sum(heap_blks_read) + sum(idx_blks_hit)) > 0 ` +
 		`THEN ` +
 		`sum(heap_blks_hit) / (sum(heap_blks_hit) + sum(heap_blks_read)) ` +
--- a/src/go/pt-pg-summary/models/tablespaces.xo.go
+++ b/src/go/pt-pg-summary/models/tablespaces.xo.go
@@ -15,7 +15,7 @@ func GetTablespaces(db XODB) ([]*Tablespaces, error) {
 	var err error

 	// sql query
-	var sqlstr = `SELECT spcname AS Name, ` +
+	sqlstr := `SELECT spcname AS Name, ` +
 		`pg_catalog.pg_get_userbyid(spcowner) AS Owner, ` +
 		`pg_catalog.pg_tablespace_location(oid) AS Location ` +
 		`FROM pg_catalog.pg_tablespace ` +
--- a/src/go/pt-secure-collect/encrypt.go
+++ b/src/go/pt-secure-collect/encrypt.go
@@ -50,7 +50,7 @@ func encrypt(infile, outfile string, pass [32]byte) error {
 	var iv [aes.BlockSize]byte
 	stream := cipher.NewOFB(block, iv[:])

-	outFile, err := os.OpenFile(outfile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	outFile, err := os.OpenFile(outfile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o600)
 	if err != nil {
 		return errors.Wrapf(err, "Cannot create output file %q", outfile)
 	}
@@ -81,7 +81,7 @@ func decrypt(infile, outfile string, pass [32]byte) error {
 	var iv [aes.BlockSize]byte
 	stream := cipher.NewOFB(block, iv[:])

-	outFile, err := os.OpenFile(outfile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	outFile, err := os.OpenFile(outfile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o600)
 	if err != nil {
 		return errors.Wrapf(err, "Cannot open %q for writing", outfile)
 	}
--- a/src/go/pt-secure-collect/main_test.go
+++ b/src/go/pt-secure-collect/main_test.go
@@ -32,11 +32,9 @@ func TestProcessCliParams(t *testing.T) {
 			t.Errorf("Test #%d expected error, have nil", i)
 		}
 		if !reflect.DeepEqual(opts, test.WantOpts) {
-
 		}
 	}
 }

 func TestCollect(t *testing.T) {
-
 }
--- a/src/go/runtests.sh
+++ b/src/go/runtests.sh
@@ -6,12 +6,12 @@ cd $BASEDIR

 source ${BASEDIR}/src/go/setenv.sh

-for dir in $(ls -d ./src/go/pt-*)
+for dir in $(ls -d ./src/go/pt-* ) ./src/go/mongolib
 do 
  echo "Running tests at $BASEDIR/$dir"
  cd $BASEDIR/$dir
  go get ./...
-  go test -v -coverprofile=coverage.out
+  go test -v -coverprofile=coverage.out ./...
  if [ -f coverage.out ]
  then
      go tool cover -func=coverage.out
--- a/t/pt-online-schema-change/pt-1528.t
+++ b/t/pt-online-schema-change/pt-1528.t
@@ -0,0 +1,70 @@
+#!/usr/bin/env perl
+
+BEGIN {
+    die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+    unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+    unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use threads;
+use threads::shared;
+use Thread::Semaphore;
+
+use English qw(-no_match_vars);
+use Test::More;
+
+use Data::Dumper;
+use PerconaTest;
+use Sandbox;
+use SqlModes;
+use File::Temp qw/ tempdir /;
+
+if ($sandbox_version lt '5.7') {
+    plan skip_all => 'This test needs MySQL 5.7+';
+} else {
+    plan tests => 2;
+}    
+
+require "$trunk/bin/pt-online-schema-change";
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+
+my $dbh = $sb->get_dbh_for('master');
+my $dsn = $sb->dsn_for("master");
+
+# The sandbox servers run with lock_wait_timeout=3 and it's not dynamic
+# so we need to specify --set-vars innodb_lock_wait_timeout=3 else the
+# tool will die.
+my @args = (qw(--set-vars innodb_lock_wait_timeout=3));
+my $output;
+my $exit_status;
+
+$sb->load_file('master', "t/pt-online-schema-change/samples/pt-1528.sql");
+
+my $rows_before = $dbh->selectall_hashref("SELECT * FROM test.brokenutf8alter", "id");
+
+($output, $exit_status) = full_output(
+    sub { pt_online_schema_change::main(@args, "$dsn,D=test,t=brokenutf8alter",
+            '--execute', '--charset=utf8', '--chunk-size', '2', '--alter', 'engine=innodb',
+        ),
+    },
+    stderr => 1,
+);
+
+my $rows_after = $dbh->selectall_hashref("SELECT * FROM test.brokenutf8alter", "id");
+
+is_deeply(
+    $rows_before, 
+    $rows_after,
+    "Should be equal",
+);
+
+# #############################################################################
+# Done.
+# #############################################################################
+$sb->wipe_clean($dbh);
+ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
+done_testing;
--- a/t/pt-online-schema-change/pt-169.t
+++ b/t/pt-online-schema-change/pt-169.t
@@ -0,0 +1,76 @@
+#!/usr/bin/env perl
+
+BEGIN {
+   die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+      unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+   unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use threads;
+
+use English qw(-no_match_vars);
+use Test::More;
+
+use Data::Dumper;
+use PerconaTest;
+use Sandbox;
+use SqlModes;
+use File::Temp qw/ tempdir /;
+
+plan tests => 3;
+
+require "$trunk/bin/pt-online-schema-change";
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+my $master_dbh = $sb->get_dbh_for('master');
+my $master_dsn = 'h=127.1,P=12345,u=msandbox,p=msandbox';
+
+if ( !$master_dbh ) {
+   plan skip_all => 'Cannot connect to sandbox master';
+}
+
+# The sandbox servers run with lock_wait_timeout=3 and it's not dynamic
+# so we need to specify --set-vars innodb_lock_wait_timeout=3 else the
+# tool will die.
+my @args       = (qw(--set-vars innodb_lock_wait_timeout=3));
+my $output;
+my $exit_status;
+my $sample  = "t/pt-online-schema-change/samples/";
+my $ERROR_UPDATING_FKS = 15; # from pt-online-schema-change line 8453
+
+$sb->load_file('master', "$sample/pt-169.sql");
+
+($output, $exit_status) = full_output(
+   sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=users",
+         '--execute', '--alter', 'CHANGE COLUMN id id BIGINT UNSIGNED NOT NULL FIRST', 
+         '--set-vars', 'foreign_key_checks=0',
+         '--alter-foreign-keys-method', 'drop_swap',  '--no-check-alter')
+      },
+);
+
+is(
+      $exit_status,
+      $ERROR_UPDATING_FKS,
+      "--alter rename columns with uppercase names -> exit status 0",
+);
+
+# Since drop_swap has failed, the clueanup process should be skipped and the new table
+# shouldn't be deleted
+my $row = $master_dbh->selectrow_hashref("select count(*) AS how_many from test._users_new");
+is (
+    $row->{how_many},
+    1,
+    "Correct number of rows",
+);
+
+$master_dbh->do("DROP DATABASE IF EXISTS test");
+
+# #############################################################################
+# Done.
+# #############################################################################
+$sb->wipe_clean($master_dbh);
+ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
+done_testing;
--- a/t/pt-online-schema-change/samples/pt-1528.sql
+++ b/t/pt-online-schema-change/samples/pt-1528.sql
@@ -0,0 +1,68 @@
+-- MySQL dump 10.13  Distrib 5.7.19-17, for debian-linux-gnu (x86_64)
+--
+-- Host: localhost    Database: test
+-- ------------------------------------------------------
+-- Server version	5.7.19-17-log
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
+/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
+/*!40101 SET NAMES utf8 */;
+/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
+/*!40103 SET TIME_ZONE='+00:00' */;
+/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
+/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
+/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
+/*!50717 SELECT COUNT(*) INTO @rocksdb_has_p_s_session_variables FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'performance_schema' AND TABLE_NAME = 'session_variables' */;
+/*!50717 SET @rocksdb_get_is_supported = IF (@rocksdb_has_p_s_session_variables, 'SELECT COUNT(*) INTO @rocksdb_is_supported FROM performance_schema.session_variables WHERE VARIABLE_NAME=\'rocksdb_bulk_load\'', 'SELECT 0') */;
+/*!50717 PREPARE s FROM @rocksdb_get_is_supported */;
+/*!50717 EXECUTE s */;
+/*!50717 DEALLOCATE PREPARE s */;
+/*!50717 SET @rocksdb_enable_bulk_load = IF (@rocksdb_is_supported, 'SET SESSION rocksdb_bulk_load = 1', 'SET @rocksdb_dummy_bulk_load = 0') */;
+/*!50717 PREPARE s FROM @rocksdb_enable_bulk_load */;
+/*!50717 EXECUTE s */;
+/*!50717 DEALLOCATE PREPARE s */;
+
+--
+-- Table structure for table `brokenutf8alter`
+--
+
+DROP DATABASE IF EXISTS test;
+CREATE DATABASE test;
+
+USE test;
+
+DROP TABLE IF EXISTS `brokenutf8alter`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `brokenutf8alter` (
+  `ID` binary(16) NOT NULL,
+  PRIMARY KEY (`ID`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `brokenutf8alter`
+--
+
+LOCK TABLES `brokenutf8alter` WRITE;
+/*!40000 ALTER TABLE `brokenutf8alter` DISABLE KEYS */;
+INSERT INTO `brokenutf8alter` VALUES ('.SG<53>:\<5C><>\<5C>B<>\0'),('.SK,:\<5C><>\<5C>B<>\0'),('.SL_:\<5C><>\<5C>B<>\0'),('.SL\<5C>:\<5C><>\<5C>B<>\0'),('.SMB:\<5C><>\<5C>B<>\0'),('.SM<53>:\<5C><>\<5C>B<>\0'),('.SM<53>:\<5C><>\<5C>B<>\0'),('.SOE:\<5C><>\<5C>B<>\0'),('.SO<53>:\<5C><>\<5C>B<>\0'),('.SP:\<5C><>\<5C>B<>\0'),('.SPZ:\<5C><>\<5C>B<>\0'),('.SP<53>:\<5C><>\<5C>B<>\0'),('.SQ:\<5C><>\<5C>B<>\0'),('.SQX:\<5C><>\<5C>B<>\0'),('.SQ<53>:\<5C><>\<5C>B<>\0'),('.SQ<53>:\<5C><>\<5C>B<>\0'),('.SRK:\<5C><>\<5C>B<>\0'),('.ST4:\<5C><>\<5C>B<>\0'),('.SU=:\<5C><>\<5C>B<>\0'),('.SU<53>:\<5C><>\<5C>B<>\0'),('.SU<53>:\<5C><>\<5C>B<>\0'),('.SVC:\<5C><>\<5C>B<>\0'),('.SV<53>:\<5C><>\<5C>B<>\0'),('.SV\<5C>:\<5C><>\<5C>B<>\0'),('.SW8:\<5C><>\<5C>B<>\0'),('.SW<53>:\<5C><>\<5C>B<>\0'),('.SX\<5C>:\<5C><>\<5C>B<>\0'),('.SY\":\<5C><>\<5C>B<>\0'),('.SYr:\<5C><>\<5C>B<>\0'),('.SY\<5C>:\<5C><>\<5C>B<>\0'),('.SZ:\<5C><>\<5C>B<>\0'),('.SZ<53>:\<5C><>\<5C>B<>\0'),('.S[):\<5C><>\<5C>B<>\0'),('.S[<5B>:\<5C><>\<5C>B<>\0'),('.S\\N:\<5C><>\<5C>B<>\0'),('.S\\\<5C>:\<5C><>\<5C>B<>\0'),('.S]>:\<5C><>\<5C>B<>\0'),('.S]<5D>:\<5C><>\<5C>B<>\0'),('.S]\<5C>:\<5C><>\<5C>B<>\0'),('.S^.:\<5C><>\<5C>B<>\0'),('.S^:\<5C><>\<5C>B<>\0'),('.S^\<5C>:\<5C><>\<5C>B<>\0'),('.S_8:\<5C><>\<5C>B<>\0'),('.S_<53>:\<5C><>\<5C>B<>\0'),('.S`W:\<5C><>\<5C>B<>\0'),('.S`<60>:\<5C><>\<5C>B<>\0'),('.Sa~:\<5C><>\<5C>B<>\0'),('.Sb:\<5C><>\<5C>B<>\0'),('.Sb<53>:\<5C><>\<5C>B<>\0'),('.Sc>:\<5C><>\<5C>B<>\0'),('.Sc\<5C>:\<5C><>\<5C>B<>\0'),('.Sd:\<5C><>\<5C>B<>\0'),('.Sdv:\<5C><>\<5C>B<>\0'),('.Sd\<5C>:\<5C><>\<5C>B<>\0'),('.Se:\<5C><>\<5C>B<>\0'),('.Seb:\<5C><>\<5C>B<>\0'),('.Se<53>:\<5C><>\<5C>B<>\0'),('.Sf:\<5C><>\<5C>B<>\0'),('.SfP:\<5C><>\<5C>B<>\0'),('.Sf<53>:\<5C><>\<5C>B<>\0'),('.Sf<53>:\<5C><>\<5C>B<>\0'),('.Sg?:\<5C><>\<5C>B<>\0'),('.Sg<53>:\<5C><>\<5C>B<>\0'),('.Sh:\<5C><>\<5C>B<>\0'),('.Sh<53>:\<5C><>\<5C>B<>\0'),('.Si7:\<5C><>\<5C>B<>\0'),('.Si\<5C>:\<5C><>\<5C>B<>\0'),('.Sji:\<5C><>\<5C>B<>\0'),('.Sk:\<5C><>\<5C>B<>\0'),('.Sk<53>:\<5C><>\<5C>B<>\0'),('.Sk\<5C>:\<5C><>\<5C>B<>\0'),('.Sl(:\<5C><>\<5C>B<>\0'),('.Sl{:\<5C><>\<5C>B<>\0'),('.Sl\<5C>:\<5C><>\<5C>B<>\0'),('.Sm\Z:\<5C><>\<5C>B<>\0'),('.Smh:\<5C><>\<5C>B<>\0'),('.Sm<53>:\<5C><>\<5C>B<>\0'),('.Sn:\<5C><>\<5C>B<>\0'),('.So:\<5C><>\<5C>B<>\0'),('.Sob:\<5C><>\<5C>B<>\0'),('.So<53>:\<5C><>\<5C>B<>\0'),('.Sp:\<5C><>\<5C>B<>\0'),('.SpQ:\<5C><>\<5C>B<>\0'),('.Sp<53>:\<5C><>\<5C>B<>\0'),('.Sp<53>:\<5C><>\<5C>B<>\0'),('.SqA:\<5C><>\<5C>B<>\0'),('.Sq<53>:\<5C><>\<5C>B<>\0'),('.Sq\<5C>:\<5C><>\<5C>B<>\0'),('.Sr+:\<5C><>\<5C>B<>\0'),('.Srv:\<5C><>\<5C>B<>\0'),('.Sr<53>:\<5C><>\<5C>B<>\0'),('.Ss:\<5C><>\<5C>B<>\0'),('.Ss_:\<5C><>\<5C>B<>\0'),('.St:\<5C><>\<5C>B<>\0'),('.St :\<5C><>\<5C>B<>\0'),('.St5:\<5C><>\<5C>B<>\0'),('.StI:\<5C><>\<5C>B<>\0'),('.St^:\<5C><>\<5C>B<>\0'),('.Str:\<5C><>\<5C>B<>\0'),('.St<53>:\<5C><>\<5C>B<>\0'),('.St<53>:\<5C><>\<5C>B<>\0');
+/*!40000 ALTER TABLE `brokenutf8alter` ENABLE KEYS */;
+UNLOCK TABLES;
+/*!50112 SET @disable_bulk_load = IF (@is_rocksdb_supported, 'SET SESSION rocksdb_bulk_load = @old_rocksdb_bulk_load', 'SET @dummy_rocksdb_bulk_load = 0') */;
+/*!50112 PREPARE s FROM @disable_bulk_load */;
+/*!50112 EXECUTE s */;
+/*!50112 DEALLOCATE PREPARE s */;
+/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
+
+/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
+/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
+/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
+/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
+/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
+
+-- Dump completed on 2018-04-07  3:48:50
--- a/t/pt-online-schema-change/samples/pt-169.sql
+++ b/t/pt-online-schema-change/samples/pt-169.sql
@@ -0,0 +1,40 @@
+DROP DATABASE IF EXISTS `test`;
+CREATE DATABASE test;
+USE test;
+
+CREATE TABLE `users` (
+  `id` int(10) unsigned NOT NULL,
+  `username` varchar(255) NOT NULL,
+  `full_name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL,
+  `is_verified` tinyint(1) NOT NULL DEFAULT '0',
+  `is_private` tinyint(1) NOT NULL DEFAULT '0',
+  `profile_pic_url` varchar(255) DEFAULT NULL,
+  `follower_count` int(11) NOT NULL DEFAULT '0',
+  `following_count` int(11) NOT NULL DEFAULT '0',
+  `media_count` int(11) NOT NULL DEFAULT '0',
+  `biography` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci DEFAULT NULL,
+  `user_active` tinyint(1) NOT NULL DEFAULT '1',
+  PRIMARY KEY (`id`),
+  KEY `username` (`username`),
+  KEY `follower_count` (`follower_count`),
+  KEY `following_count` (`following_count`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+CREATE TABLE `user_comments` (
+  `id_user_comments` int(11) NOT NULL AUTO_INCREMENT,
+  `msg` varchar(255) DEFAULT NULL,
+  `user_id` int(10) unsigned DEFAULT NULL,
+  PRIMARY KEY (`id_user_comments`),
+  KEY `fk1_idx` (`user_id`),
+  CONSTRAINT `fk1` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION
+) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;
+
+
+INSERT INTO `test`.`users` (`id`, `username`, `full_name`, `is_verified`, `is_private`, `profile_pic_url`,
+`follower_count`, `following_count`, `media_count`, `biography`, `user_active`)
+VALUES
+(1, "zappb", "zapp brannigan", 1, 1, "https://pbs.twimg.com/profile_images/447660347273408512/NdZEGKvr.jpeg", 0, 0, 0, "", 1);
+ 
+INSERT INTO `test`.`user_comments` (`id_user_comments`, `msg`, `user_id`)
+VALUES
+(1, "I am the man with no name. Zapp Brannigan, at your service.", 1);
--- a/t/pt-online-schema-change/slave_lag.t_
+++ b/t/pt-online-schema-change/slave_lag.t_
@@ -23,7 +23,9 @@ if ($ENV{PERCONA_SLOW_BOX}) {
    plan skip_all => 'This test needs a fast machine';
 } else {
    plan tests => 6;
+    #plan skip_all => 'This test is taking too much time even in fast machines';
 }                                  
+
 our $delay = 30;

 my $tmp_file = File::Temp->new();
@@ -39,10 +41,6 @@ my $slave_dbh = $sb->get_dbh_for('slave1');
 my $master_dsn = 'h=127.0.0.1,P=12345,u=msandbox,p=msandbox';
 my $slave_dsn = 'h=127.0.0.1,P=12346,u=msandbox,p=msandbox';

-if ( !$master_dbh ) {
-   plan skip_all => 'Cannot connect to sandbox master';
-}
-
 sub reset_query_cache {
    my @dbhs = @_;
    return if ($sandbox_version >= '8.0');
@@ -64,7 +62,7 @@ $sb->load_file('master', "t/pt-online-schema-change/samples/slave_lag.sql");

 my $num_rows = 5000;
 diag("Loading $num_rows into the table. This might take some time.");
-diag(`util/mysql_random_data_load --host=127.0.0.1 --port=12345 --user=msandbox --password=msandbox test pt178 --bulk-size=1 --max-threads=1 $num_rows`);
+diag(`util/mysql_random_data_load --host=127.0.0.1 --port=12345 --user=msandbox --password=msandbox test pt178 $num_rows`);

 diag("Setting slave delay to $delay seconds");
Author	SHA1	Message	Date
Carlos Salguero	aca7e6a83e	PT-1528 Ingore UTF8 warning	2020-12-16 15:18:23 -03:00
Carlos Salguero	15ffa974eb	PT-1528 [WIP] Proposed solution	2020-11-22 18:58:00 -03:00
Carlos Salguero	ff6b05b381	PT-1891 Fixed mongodb-summary connection with ssl (#469 ) * PT-1891 Fixed mongodb-summary connection with ssl - Added SSL connection options - Fixed old tests - Replaced gofmt by gofumpt in Makefile - There are no ssl test for mongodb-summary because the current sandbox doesnt support it * PT-1891 Ran gofumports * PMM-1891 Fixes for CR * PT-1891 Decreased minimum TLS reqs for compatibility	2020-11-02 17:13:29 -03:00
Carlos Salguero	e731cf4d83	PT-1881 Updated changelog	2020-10-27 19:17:02 -03:00
Nayuta Yanagisawa	442a099268	PT-1881: Fix missing argument error of pt-upgrade (#461 ) * Fix missing argument error of pt-upgrade * Use print rather than printf	2020-10-27 19:15:21 -03:00
Jaroslav Musil	fc4e86928b	[PMM-6756] Added go 1.15.x. (#468 )	2020-10-19 15:22:08 +02:00
Carlos Salguero	03bd58e3a3	Updated changelog	2020-10-13 08:26:34 -03:00
Carlos Salguero	d7a7a1c7a5	PT-169 Handle drop-swap errors in pt-online-schema-change (#467 ) * PT-169 Fixed drop-swap error handling * PT-169 Fixed drop_swap error handling	2020-10-12 15:36:45 -03:00
Carlos Salguero	1090f017a1	Updated changelog	2020-09-30 11:06:15 -03:00
Carlos Salguero	a8ea8dfe56	PT-1892 Fixed sshd process recognition (#465 )	2020-09-30 11:04:34 -03:00
Carlos Salguero	0aac7b4cfc	PMM-6494 Topology labels (#463 ) * PMM-6494 Topology labels Added common functions needed for topology lables in mongo exporter and pt-mongodb-summary * PMM-5723 Fix reviewdog. Co-authored-by: Nurlan Moldomurov <nurlan.moldomurov@percona.com>	2020-09-08 19:48:09 +03:00
Alexey Palazhchenko	d7ece0aecc	Add go.mod (#464 ) * Add go.mod * Update github.com/shirou/gopsutil * Use released version of dep * Disable modules in CI for now * PMM-5723 Fix reviewdog. Co-authored-by: Nurlan Moldomurov <nurlan.moldomurov@percona.com>	2020-09-08 17:20:19 +03:00
PaulJacobs-percona	ff8b0aff84	Update release_notes.rst Don't expose email	2020-08-17 10:03:26 +03:00
Paul Jacobs	db7dee46b6	3.2.1 RNs	2020-08-17 10:01:02 +03:00
PaulJacobs-percona	ecaaf4cc42	Merge pull request #460 from percona/release-3.2.1 3.2.1 release branch	2020-08-17 09:39:11 +03:00