mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-10 13:11:32 +00:00
110 lines
3.4 KiB
Perl
110 lines
3.4 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. See http://code.google.
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com/p/maatkit/wiki/Testing"
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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 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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require "$trunk/bin/pt-slave-delay";
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my $dp = DSNParser->new(opts => $dsn_opts);
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my $sb = Sandbox->new(basedir => '/tmp', DSNParser => $dp);
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my $master_dbh = $sb->get_dbh_for('master');
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my $dbh = $sb->get_dbh_for('slave1');
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if ( !$dbh ) {
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plan skip_all => 'Cannot connect to MySQL slave.';
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}
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elsif ( !@{$dbh->selectcol_arrayref("SHOW DATABASES LIKE 'sakila'")} ) {
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plan skip_all => 'sakila db not loaded';
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}
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else {
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plan tests => 3;
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}
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my $cnf = '/tmp/12346/my.sandbox.cnf';
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my $cmd = "$trunk/bin/pt-slave-delay -F $cnf";
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my $output;
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# #############################################################################
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# Issue 991: Make mk-slave-delay reconnect to db when it loses the dbconnection
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# #############################################################################
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# Fork a child that will stop the slave while we, the parent, run
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# tool. The tool should report that it lost its slave cxn, then
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# the child should restart the slave, and the tool should report
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# that it reconnected and did some work, ending with "Setting slave
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# to run normally".
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my $pid = fork();
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if ( $pid ) {
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# parent
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$output = `$cmd --interval 1 --run-time 4 2>&1`;
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like(
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$output,
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qr/Lost connection.+?Reconnected to slave.+Setting slave to run/ms,
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"Reconnect to slave"
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);
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}
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else {
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# child
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sleep 1;
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diag(`/tmp/12346/stop >/dev/null`);
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sleep 1;
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diag(`/tmp/12346/start >/dev/null`);
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# Ensure we don't break the sandbox -- instance 12347 will be disconnected
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# when its master gets rebooted
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diag(`/tmp/12347/use -e "stop slave; start slave"`);
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exit;
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}
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# Reap the child.
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waitpid ($pid, 0);
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# Do it all over again, but this time KILL instead of restart.
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$pid = fork();
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if ( $pid ) {
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# parent. Note the --database mysql
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$output = `$cmd --database mysql --interval 1 --run-time 4 2>&1`;
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like(
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$output,
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qr/Lost connection.+?Reconnected to slave.+Setting slave to run/ms,
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"Reconnect to slave when KILL'ed"
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);
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}
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else {
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# child. Note that we'll kill the parent's 'mysql' connection
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sleep 1;
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my $c_dbh = $sb->get_dbh_for('slave1');
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my @cxn = @{$c_dbh->selectall_arrayref('show processlist', {Slice => {}})};
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foreach my $c ( @cxn ) {
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# The parent's connection:
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# {command => 'Sleep',db => 'mysql',host => 'localhost',id => '5',info => undef,state => '',time => '1',user => 'msandbox'}
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if ( ($c->{db} || '') eq 'mysql' && ($c->{user} || '') eq 'msandbox'
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&& ($c->{command} || '') ne 'Binlog Dump' # Don't kill the slave threads from 12347 or others!
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) {
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diag("Killing connection on slave1: $c->{id} ($c->{command})");
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$c_dbh->do("KILL $c->{id}");
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}
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}
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exit;
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}
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# Reap the child.
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waitpid ($pid, 0);
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# #############################################################################
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# Done.
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# #############################################################################
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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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exit;
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