PT-2340 - Support MySQL 8.4

- Created pt-replica-find. pt-slave-find kept as symbolic link

bin/pt-slave-find

@@ -0,0 +1 @@
+pt-replica-find

t/pt-replica-find/deprecation.t

@@ -0,0 +1,37 @@
+#!/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 English qw(-no_match_vars);
+use Test::More ;
+
+use PerconaTest;
+require "$trunk/bin/pt-replica-find";
+
+my $output;
+my $cnf = '/tmp/12346/my.sandbox.cnf';
+my $cmd = "$trunk/bin/pt-replica-find -F $cnf h=127.1";
+my $legacy_cmd = "$trunk/bin/pt-slave-find -F $cnf h=127.1";
+
+$output = `$cmd --help 2>&1`;
+unlike(
+   $output, 
+   qr/pt-slave-find is a link to pt-replica-find/, 
+   'Deprecation warning not printed for pt-replica-find'
+);
+
+$output = `$legacy_cmd --help 2>&1`;
+like(
+   $output, 
+   qr/pt-slave-find is a link to pt-replica-find/, 
+   'Deprecation warning printed for pt-slave-find'
+);
+
+done_testing();
+exit;

t/pt-replica-find/pt-replica-find.t

@@ -0,0 +1,170 @@
+#!/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 English qw(-no_match_vars);
+use Test::More;
+use Data::Dumper;
+
+use PerconaTest;
+use Sandbox;
+
+require "$trunk/bin/pt-replica-find";
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+my $replica1_dbh = $sb->get_dbh_for('replica1');
+my $replica2_dbh = $sb->get_dbh_for('replica2');
+
+# This test is sensitive to ghost/old replicas created/destroyed by other
+# tests.  So we stop the replicas, restart the source, and start everything
+# again.  Hopefully this will return the env to its original state.
+$replica2_dbh->do("STOP ${replica_name}");
+$replica1_dbh->do("STOP ${replica_name}");
+diag(`/tmp/12345/stop >/dev/null`);
+diag(`/tmp/12345/start >/dev/null`);
+$replica1_dbh->do("START ${replica_name}");
+$replica2_dbh->do("START ${replica_name}");
+
+my $source_dbh = $sb->get_dbh_for('source');
+
+if ( !$source_dbh ) {
+   plan skip_all => 'Cannot connect to sandbox source';
+}
+elsif ( !$replica1_dbh ) {
+   plan skip_all => 'Cannot connect to sandbox replica';
+}
+elsif ( !$replica2_dbh ) {
+   plan skip_all => 'Cannot connect to second sandbox replica';
+}
+else {
+   plan tests => 10;
+}
+
+my @args = ('h=127.0.0.1,P=12345,u=msandbox,p=msandbox,s=1');
+
+my $output = `$trunk/bin/pt-replica-find --help`;
+like($output, qr/Prompt for a password/, 'It compiles');
+
+# Double check that we're setup correctly.
+my $row = $replica2_dbh->selectall_arrayref("SHOW ${replica_name} STATUS", {Slice => {}});
+is(
+   $row->[0]->{"${source_name}_port"},
+   '12346',
+   'replica2 is replica of replica1'
+) or diag(Dumper($row));
+
+$output = `$trunk/bin/pt-replica-find -h 127.0.0.1 -P 12345 -u msandbox -p msandbox s=1 --report-format hostname`;
+my $expected = <<EOF;
+127.0.0.1:12345
++- 127.0.0.1:12346
+   +- 127.0.0.1:12347
+EOF
+is($output, $expected, 'Source with replica and replica of replica');
+
+###############################################################################
+# Test --resolve-hostname option (we don't know the hostname of the test
+# machine so we settle for any non null string)
+###############################################################################
+$output = `$trunk/bin/pt-replica-find -h 127.0.0.1 -P 12345 -u msandbox -p msandbox --report-format hostname --resolve-address`;
+like (   
+   $output,
+   qr/127\.0\.0\.1:12345\s+\(\w+\)/s,
+   "--resolve-address option"
+) or diag($output);
+
+# #############################################################################
+# Until MasterSlave::find_replica_hosts() is improved to overcome the problems
+# with SHOW REPLICA HOSTS, this test won't work.
+# #############################################################################
+# Make replica2 replica of source.
+#diag(`../../mk-slave-move/mk-slave-move --sibling-of-master h=127.1,P=12347`);
+#$output = `perl ../mk-slave-find -h 127.0.0.1 -P 12345 -u msandbox -p msandbox`;
+#$expected = <<EOF;
+#127.0.0.1:12345
+#+- 127.0.0.1:12346
+#+- 127.0.0.1:12347
+#EOF
+#is($output, $expected, 'Source with two replicas');
+
+# #########################################################################
+# Issue 391: Add --pid option to all scripts
+# #########################################################################
+`touch /tmp/mk-script.pid`;
+$output = `$trunk/bin/pt-replica-find -h 127.0.0.1 -P 12345 -u msandbox -p msandbox --pid /tmp/mk-script.pid 2>&1`;
+like(
+   $output,
+   qr{PID file /tmp/mk-script.pid exists},
+   'Dies if PID file already exists (issue 391)'
+);
+`rm -rf /tmp/mk-script.pid`;
+
+
+# #############################################################################
+# Summary report format.
+# #############################################################################
+my $outfile = "/tmp/mk-replica-find-output.txt";
+#diag(`rm -rf $outfile >/dev/null`);
+diag(`rm -rf $outfile`);
+
+$output = output(
+   sub { pt_slave_find::main(@args) },
+   file => $outfile,
+);
+
+open my $fh, "<", $outfile or die $!;
+
+my $result = do { local $/; <$fh> }; #"
+
+$result =~ s/Version.*/Version/g;
+$result =~ s/Uptime.*/Uptime/g;
+$result =~ s/[0-9]* seconds/0 seconds/g;
+$result =~ s/Binary logging.*/Binary logging/g;
+$result =~ s/Replication     Is a slave, has 1 slaves connected, is.*/Replication     Is a slave, has 1 slaves connected, is/g;
+$result =~ s/Replication     Is a replica, has 1 replicas connected, is.*/Replication     Is a replica, has 1 replicas connected, is/g;
+
+my $innodb_re = qr/InnoDB version\s+(.*)/;
+my (@innodb_versions) = $result =~ /$innodb_re/g;
+$result =~ s/$innodb_re/InnoDB version  BUILTIN/g;
+
+my $source_version = VersionParser->new($source_dbh);
+my $replica_version  = VersionParser->new($replica1_dbh);
+my $replica2_version = VersionParser->new($replica2_dbh);
+
+is(
+   $innodb_versions[0],
+   $source_version->innodb_version(),
+   "pt-replica-find gets the right InnoDB version for the source"
+);
+
+is(
+   $innodb_versions[1],
+   $replica_version->innodb_version(),
+   "...and for the first replica"
+) or diag($output);
+
+is(
+   $innodb_versions[2],
+   $replica2_version->innodb_version(),
+   "...and for the second replica"
+);
+
+ok(
+   no_diff($result, ($sandbox_version ge '5.1'
+      ? "t/pt-replica-find/samples/summary001.txt"
+      : "t/pt-replica-find/samples/summary001-5.0.txt"), cmd_output => 1, keep_output => 1, update_samples => 1),
+   "Summary report format",
+);
+
+# #############################################################################
+# Done.
+# #############################################################################
+diag(`rm -rf $outfile >/dev/null`);
+ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
+exit;

t/pt-replica-find/pt-slave-find.t

@@ -157,8 +157,8 @@ is(
 
 ok(
    no_diff($result, ($sandbox_version ge '5.1'
-      ? "t/pt-slave-find/samples/summary001.txt"
-      : "t/pt-slave-find/samples/summary001-5.0.txt"), cmd_output => 1, keep_output => 1, update_samples => 1),
+      ? "t/pt-replica-find/samples/summary001.txt"
+      : "t/pt-replica-find/samples/summary001-5.0.txt"), cmd_output => 1, keep_output => 1, update_samples => 1),
    "Summary report format",
 );