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91f9e27255
* fix(pt-online-schema-change): Fix the issue where using --skip-check-slave-lag multiple times does not work as expected. * PT-2241: add test cases for pt-online-schema-change * Update t/pt-online-schema-change/pt-2241.t fix():reset the delay on replicas Co-authored-by: Sveta Smirnova <svetasmirnova@users.noreply.github.com> --------- Co-authored-by: Sveta Smirnova <svetasmirnova@users.noreply.github.com>
110 lines
3.6 KiB
Perl
110 lines
3.6 KiB
Perl
#!/usr/bin/env perl
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BEGIN {
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die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
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unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
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unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
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};
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use strict;
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use warnings FATAL => 'all';
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use threads;
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use English qw(-no_match_vars);
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use Test::More;
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use Data::Dumper;
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use PerconaTest;
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use Sandbox;
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use SqlModes;
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use File::Temp qw/ tempdir tempfile /;
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if ($ENV{PERCONA_SLOW_BOX}) {
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plan skip_all => 'This test needs a fast machine';
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} else {
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plan tests => 2;
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}
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our $delay = 30;
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my $tmp_file = File::Temp->new();
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my $tmp_file_name = $tmp_file->filename;
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unlink $tmp_file_name;
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require "$trunk/bin/pt-online-schema-change";
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my $dp = new DSNParser(opts=>$dsn_opts);
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my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
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my $master_dbh = $sb->get_dbh_for('master');
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my $slave1_dbh = $sb->get_dbh_for('slave1');
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my $slave2_dbh = $sb->get_dbh_for('slave2');
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my $master_dsn = 'h=127.0.0.1,P=12345,u=msandbox,p=msandbox';
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my $slave_dsn1 = 'h=127.0.0.1,P=12346,u=msandbox,p=msandbox';
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my $slave_dsn2 = 'h=127.0.0.1,P=12347,u=msandbox,p=msandbox';
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sub reset_query_cache {
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my @dbhs = @_;
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return if ($sandbox_version >= '8.0');
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foreach my $dbh (@dbhs) {
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$dbh->do('RESET QUERY CACHE');
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}
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}
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diag('Loading test data');
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$sb->load_file('master', "t/pt-online-schema-change/samples/pt-2241.sql");
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# Should be greater than chunk-size and big enough, so pt-osc will wait for delay
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my $num_rows = 5000;
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diag("Loading $num_rows into the table. This might take some time.");
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diag(`util/mysql_random_data_load --host=127.0.0.1 --port=12345 --user=msandbox --password=msandbox test pt2241 $num_rows`);
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$sb->wait_for_slaves();
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diag("Setting slaves delay to $delay seconds");
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$slave1_dbh->do('STOP SLAVE');
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$slave1_dbh->do("CHANGE MASTER TO MASTER_DELAY=$delay");
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$slave1_dbh->do('START SLAVE');
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$slave2_dbh->do('STOP SLAVE');
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$slave2_dbh->do("CHANGE MASTER TO MASTER_DELAY=$delay");
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$slave2_dbh->do('START SLAVE');
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# using --skip-check-slave-lag
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# Run a full table scan query to ensure the slave is behind the master
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reset_query_cache($master_dbh, $master_dbh);
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# Update one row so slave is delayed
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$master_dbh->do('UPDATE `test`.`pt2241` SET tcol2 = tcol2 + 1 LIMIT 1');
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$master_dbh->do('UPDATE `test`.`pt2241` SET tcol2 = tcol2 + 1 WHERE tcol1 = ""');
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# We need to sleep, otherwise pt-osc can finish before slave is delayed
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my $max_lag = $delay / 2;
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sleep($max_lag);
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my $args = "$master_dsn,D=test,t=pt2241 --execute --chunk-size 1 --max-lag $max_lag --alter 'ENGINE=InnoDB' "
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. "--skip-check-slave-lag h=127.0.0.1,P=12346,u=msandbox,p=msandbox,D=test,t=pt2241 --skip-check-slave-lag h=127.0.0.1,P=12347,u=msandbox,p=msandbox,D=test,t=pt2241 --pid $tmp_file_name --progress time,5";
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diag("Starting --skip-check-slave-lag test. This is going to take some time due to the delay in the slave");
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my $output = `$trunk/bin/pt-online-schema-change $args 2>&1`;
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unlike(
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$output,
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qr/Replica lag is \d+ seconds on .* Waiting/s,
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"--skip-check-slave-lag is really skipping the slave",
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);
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# #############################################################################
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# Done.
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# #############################################################################
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diag("Setting slave delay to 0 seconds");
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$slave1_dbh->do('STOP SLAVE');
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$slave2_dbh->do('STOP SLAVE');
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$master_dbh->do("RESET MASTER");
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$slave1_dbh->do('RESET SLAVE');
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$slave1_dbh->do('START SLAVE');
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$slave2_dbh->do('RESET SLAVE');
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$slave2_dbh->do('START SLAVE');
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$sb->wipe_clean($master_dbh);
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ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
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done_testing;
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