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PT-173 Added --truncate-replicate-table

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This feature will truncate the replicate table before starting the
checksunm process. The reason for this ticket is to clean old/stale data
in the replicate table since --empty-replicate-table will only replace
data for existing tables.

Description here
This commit is contained in:
Carlos Salguero
2017-07-18 08:30:17 -03:00
parent b30b110d71
commit d794736ebf
3 changed files with 181 additions and 1 deletions
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87
t/pt-table-checksum/pt-173.t Normal file
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#!/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;
use Sandbox;
use SqlModes;
require "$trunk/bin/pt-table-checksum";
my $dp = new DSNParser(opts=>$dsn_opts);
my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
my $dbh = $sb->get_dbh_for('master');
if ( !$dbh ) {
plan skip_all => 'Cannot connect to sandbox master';
}
else {
plan tests => 4;
}
$sb->load_file('master', 't/pt-table-checksum/samples/PT-173.sql');
# 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.
# And --max-load "" prevents waiting for status variables.
my $master_dsn = $sb->dsn_for('master');
my @args = ($master_dsn, "--resume", "--truncate-replicate-table");
my $output;
my $exit_status;
# Test #1
$output = output(
sub { $exit_status = pt_table_checksum::main(@args) },
stderr => 1,
);
isnt(
$exit_status,
0,
"Cannot use --resume with --truncate-replicate-table",
);
# Test #2
@args = ($master_dsn, "--truncate-replicate-table");
$output = output(
sub { $exit_status = pt_table_checksum::main(@args) },
stderr => 1,
);
my $row = $dbh->selectrow_arrayref('select count(*) from percona.checksums where `db` = "fake_db"');
is(
$row->[0],
0,
"--truncate-replicate-table replicate table has been truncated",
);
# Test #3
$sb->load_file('master', 't/pt-table-checksum/samples/PT-173.sql');
@args = ($master_dsn, "--truncate-replicate-table", "--empty-replicate-table");
$output = output(
sub { $exit_status = pt_table_checksum::main(@args) },
stderr => 1,
);
$row = $dbh->selectrow_arrayref('select count(*) from percona.checksums where `db` = "fake_db"');
is(
$row->[0],
0,
"--truncate-replicate-table has precedence over --empty-replicate-table",
);
# #############################################################################
# Done.
# #############################################################################
$sb->wipe_clean($dbh);
ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
exit;