mirror of
https://github.com/percona/percona-toolkit.git
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PT-1717 - resume pt-online-schema-change if it's interrupted
- Now --resume dies if new table or triggers do not exist - New table and triggers are not removed if --resume fails during these checkups - Added sample file and more tests for --resume
This commit is contained in:
Sveta Smirnova
+148
-69
@@ -8812,13 +8812,15 @@ sub main {
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PTDEBUG && _d('Last chunk:', Dumper($last_chunk));
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if ( !$last_chunk || !$last_chunk->{new_table_name} ) {
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_die("Option --resume refers non-existing chunk: ${old_job_id}. Exiting."
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$oktorun = undef;
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_die("Option --resume refers non-existing job ID: ${old_job_id}. Exiting."
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, UNSUPPORTED_OPERATION);
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}
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if ( $last_chunk->{db} ne $db
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|| $last_chunk->{tbl} ne $tbl
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|| $last_chunk->{altr} ne $o->get('alter') ){
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$oktorun = undef;
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_die("Essential options for the failed job are different from current:\n"
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. "Database: failed - $last_chunk->{db}, current - ${db}\n"
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. "Table: failed - $last_chunk->{tbl}, current - ${tbl}\n"
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@@ -8828,10 +8830,29 @@ sub main {
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}
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if ( $last_chunk->{done} eq 'yes' ) {
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$oktorun = undef;
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_die("Copying rows for job ${old_job_id} finished.\n"
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. "Nothing to do. Exiting."
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, UNSUPPORTED_OPERATION);
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}
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my $json = JSON->new->allow_nonref;
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my $opt_hash = $json->decode($last_chunk->{args});
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if ( ( ($opt_hash->{'chunk-index'} // '') ne ($o->get('chunk-index') // '') )
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|| ( ($opt_hash->{'chunk-index-columns'} // '')
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ne ($o->get('chunk-index-columns') // '') )
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) {
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$oktorun = undef;
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_die("User-specified chunk index does not match stored one\n"
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. "Stored chunk index: " . ($opt_hash->{'chunk-index'}//'') . "\n"
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. "User-specified chunk index: " . ($o->get('chunk-index')//'') . "\n"
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. "Stored value of --chunk-index-columns: "
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. ($opt_hash->{'chunk-index-columns'}//'') . "\n"
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. "User-specified value of --chunk-index-columns: "
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. ($o->get('chunk-index-columns')//'') . "\n"
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. "Cannot resume job ${old_job_id}. Exiting."
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, UNSUPPORTED_OPERATION);
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}
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}
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my $job_id;
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@@ -9042,7 +9063,7 @@ sub main {
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my $is_skip = 0;
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for my $slave_to_skip (@$slaves_to_skip) {
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if ( $slave->{dsn}->{h} eq $slave_to_skip->{h} ) {
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my $skip_slave_port = defined($slave_to_skip->{P})
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my $skip_slave_port = defined($slave_to_skip->{P})
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? $slave_to_skip->{P} : '3306';
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if ( ($slave->{dsn}->{P} eq $skip_slave_port) ) {
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print "Skipping slave " . $slave->description() . "\n";
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@@ -9587,6 +9608,19 @@ sub main {
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tbl => $new_table_name,
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name => $q->quote($orig_tbl->{db}, $new_table_name),
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};
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my $sql = "SELECT COUNT(*) AS c FROM information_schema.tables "
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. "WHERE TABLE_SCHEMA = ? and TABLE_NAME = ?";
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PTDEBUG && _d($sql);
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my $sth = $cxn->dbh()->prepare($sql);
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$sth->execute($new_tbl->{db}, $new_tbl->{tbl});
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my $cnt = $sth->fetchrow_hashref();
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$sth->finish();
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PTDEBUG && _d("Found table: $cnt->{c}");
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if ( !$cnt->{c} || int($cnt->{c}) != 1 ) {
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_die("New table $new_tbl->{name} not found, restart operation from scratch"
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, UNSUPPORTED_OPERATION);
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}
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}
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else {
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$new_table_name = $o->get('new-table-name');
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@@ -9621,7 +9655,7 @@ sub main {
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"UPDATE ${hist_table} SET new_table_name = ?"
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);
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$sth->execute($new_tbl->{tbl});
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}
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}
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# If the new table still exists, drop it unless the tool was interrupted.
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push @cleanup_tasks, sub {
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@@ -9637,8 +9671,7 @@ sub main {
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my $sql = "DROP TABLE IF EXISTS $new_tbl->{name};";
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if ( !$oktorun ) {
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# The tool was interrupted, so do not drop the new table
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# in case the user wants to resume (once resume capability
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# is implemented).
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# in case the user wants to resume.
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print "Not dropping the new table $new_tbl->{name} because "
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. "the tool was interrupted. To drop the new table, "
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. "execute:\n$sql\n";
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@@ -9904,69 +9937,117 @@ sub main {
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}
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};
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if ( !$o->got('resume') ) {
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# --plugin hook
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if ( $plugin && $plugin->can('before_create_triggers') ) {
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$plugin->before_create_triggers();
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}
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# --plugin hook
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if ( $plugin && $plugin->can('before_create_triggers') ) {
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$plugin->before_create_triggers();
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}
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my @trigger_names = eval {
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my @trigger_names = eval {
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create_triggers(
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orig_tbl => $orig_tbl,
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new_tbl => $new_tbl,
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del_tbl => $del_tbl,
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columns => \@common_cols,
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Cxn => $cxn,
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Quoter => $q,
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OptionParser => $o,
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Retry => $retry,
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tries => $tries,
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stats => \%stats,
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dont => $o->got('resume'),
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);
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};
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if ( $EVAL_ERROR ) {
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$oktorun = undef;
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_die("Error creating triggers: $EVAL_ERROR", ERROR_CREATING_TRIGGERS);
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};
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# We do not create triggers if option --resume is provided
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# but we need to check if triggers exist
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if ( $o->got('resume') ) {
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my $sql = "SELECT COUNT(*) AS c FROM "
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. "INFORMATION_SCHEMA.TRIGGERS "
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. "WHERE TRIGGER_SCHEMA = ? AND TRIGGER_NAME = ?";
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my $sth = $cxn->dbh()->prepare($sql);
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foreach my $trigger_name ( @trigger_names ) {
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PTDEBUG && _d("Checking trigger: $orig_tbl->{db}.$trigger_name");
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$sth->execute($orig_tbl->{db}, $trigger_name);
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my $cnt = $sth->fetchrow_hashref();
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PTDEBUG && _d("Found table: $cnt->{c}");
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if ( !$cnt->{c} || int($cnt->{c}) != 1 ) {
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$oktorun = undef;
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_die("Trigger $orig_tbl->{db}.$trigger_name not found, "
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. "restart operation from scratch to avoid data loss"
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, UNSUPPORTED_OPERATION);
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}
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}
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$sth->finish();
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}
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if ( $o->get('reverse-triggers') ) {
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print "Adding reverse triggers\n";
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my $old_tbl_name = '_'.$orig_tbl->{tbl}.'_old';
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my $new_tbl_name = '_'.$orig_tbl->{tbl}.'_new';
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my $old_tbl = {
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db => $orig_tbl->{db},
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name => '`'.$orig_tbl->{db}.'`.`'.$old_tbl_name.'`',
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tbl => $old_tbl_name,
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};
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my $new_tbl = {
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db => $orig_tbl->{db},
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name => '`'.$orig_tbl->{db}.'`.`'.$new_tbl_name.'`',
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tbl => $new_tbl_name,
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};
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my @reverse_trigger_names=eval {
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create_triggers(
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orig_tbl => $orig_tbl,
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new_tbl => $new_tbl,
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del_tbl => $del_tbl,
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columns => \@common_cols,
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Cxn => $cxn,
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Quoter => $q,
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OptionParser => $o,
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Retry => $retry,
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tries => $tries,
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stats => \%stats,
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orig_tbl => $new_tbl,
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new_tbl => $old_tbl,
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del_tbl => $orig_tbl,
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columns => \@common_cols,
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Cxn => $cxn,
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Quoter => $q,
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OptionParser => $o,
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Retry => $retry,
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tries => $tries,
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stats => \%stats,
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reverse_triggers => 1,
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dont => $o->got('resume'),
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);
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};
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if ( $EVAL_ERROR ) {
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_die("Error creating triggers: $EVAL_ERROR", ERROR_CREATING_TRIGGERS);
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$oktorun = undef;
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_die("Error creating reverse triggers: $EVAL_ERROR", ERROR_CREATING_REVERSE_TRIGGERS);
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};
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if ( $o->get('reverse-triggers') ) {
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print "Adding reverse triggers\n";
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eval {
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my $old_tbl_name = '_'.$orig_tbl->{tbl}.'_old';
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my $new_tbl_name = '_'.$orig_tbl->{tbl}.'_new';
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my $old_tbl = {
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db => $orig_tbl->{db},
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name => '`'.$orig_tbl->{db}.'`.`'.$old_tbl_name.'`',
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tbl => $old_tbl_name,
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};
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my $new_tbl = {
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db => $orig_tbl->{db},
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name => '`'.$orig_tbl->{db}.'`.`'.$new_tbl_name.'`',
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tbl => $new_tbl_name,
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};
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my $triggers=create_triggers(
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orig_tbl => $new_tbl,
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new_tbl => $old_tbl,
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del_tbl => $orig_tbl,
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columns => \@common_cols,
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Cxn => $cxn,
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Quoter => $q,
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OptionParser => $o,
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Retry => $retry,
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tries => $tries,
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stats => \%stats,
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reverse_triggers => 1,
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);
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};
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if ( $EVAL_ERROR ) {
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_die("Error creating reverse triggers: $EVAL_ERROR", ERROR_CREATING_REVERSE_TRIGGERS);
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};
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# We do not create reverse triggers if option --resume is provided
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# but we need to check if triggers exist
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if ( $o->got('resume') ) {
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my $sql = "SELECT COUNT(*) AS c FROM "
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. "INFORMATION_SCHEMA.TRIGGERS "
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. "WHERE TRIGGER_SCHEMA = ? AND TRIGGER_NAME = ?";
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my $sth = $cxn->dbh()->prepare($sql);
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foreach my $trigger_name ( @reverse_trigger_names ) {
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PTDEBUG && _d("Checking reverse trigger: $orig_tbl->{db}.$trigger_name");
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$sth->execute($orig_tbl->{db}, $trigger_name);
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my $cnt = $sth->fetchrow_hashref();
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PTDEBUG && _d("Found table: $cnt->{c}");
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if ( !$cnt->{c} || int($cnt->{c}) != 1 ) {
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$oktorun = undef;
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_die("Reverse trigger $orig_tbl->{db}.$trigger_name not found, "
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. "restart operation from scratch to avoid data loss"
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, UNSUPPORTED_OPERATION);
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}
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}
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$sth->finish();
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}
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# --plugin hook
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if ( $plugin && $plugin->can('after_create_triggers') ) {
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$plugin->after_create_triggers();
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}
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}
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# --plugin hook
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if ( $plugin && $plugin->can('after_create_triggers') ) {
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$plugin->after_create_triggers();
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}
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# #####################################################################
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@@ -11810,7 +11891,7 @@ sub create_triggers {
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# If --preserve-triggers was specified, try to create the original triggers into the new table.
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# We are doing this to ensure the original triggers will work in the new modified table
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# and we want to know this BEFORE copying all rows from the old table to the new one.
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if ($o->get('preserve-triggers')) {
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if ($o->get('preserve-triggers') && !$args{dont}) {
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foreach my $trigger_info (@$triggers_info) {
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foreach my $orig_trigger (@{$trigger_info->{orig_triggers}}) {
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my $definer = $orig_trigger->{definer} || '';
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@@ -12656,8 +12737,8 @@ Prompt for a password when connecting to MySQL.
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This option modifies the behavior of L<"--history"> such that the
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history table's upper and lower boundary columns are created with the BLOB
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data type.
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This is useful in cases where you changing large tables with keys that
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include a binary data type or that have non-standard character sets.
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This is useful when you change large tables with keys that include a binary
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data type or that have non-standard character sets.
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See L<"--history"> and L<"--resume">.
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=item --channel
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@@ -13023,8 +13104,6 @@ Show help and exit.
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=item --history
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default: 0
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Write job progress to a table. Unfinished jobs may be restarted by the option L<"--resume">.
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The history table must have this structure (MAGIC_create_pt_osc_history):
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@@ -13317,11 +13396,11 @@ type: int
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Resume altering table from the last completed chunk. If the tool stops before it finishes
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copying rows, this option makes copying resume from the last chunk copied.
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The option accepts ID of the failed job. This ID is printed when pt-online-schema-change
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The option accepts ID of the failed job. This ID is printed when pt-online-schema-change
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is running with option L<i"--history"> and stored in the L<"--history-table">.
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Warning! To use this option previous, failed, run of pt-online-schema-change should use options
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L<"--history">, L<"--nodrop-new-table">, and L<"--nodrop-triggers">. Otherwise,
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Warning! To use this option previous, failed, run of pt-online-schema-change should use options
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L<"--history">, L<"--nodrop-new-table">, and L<"--nodrop-triggers">. Otherwise,
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pt-online-schema-change would not be able to resume.
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=item --skip-check-slave-lag
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@@ -13521,8 +13600,8 @@ keyword. You might need to quote the value. Here is an example:
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pt-online-schema-change --where "id > 12345678"
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IMPORTANT. If used without options --no-drop-new-table and --no-swap-tables
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may lead to data loss, therefore this operation only allowed if option --force
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Warning! If used without options L<"--no-drop-new-table"> and L<"--no-swap-tables">
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may lead to data loss, therefore this operation only allowed if option L<"--force">
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also specified.
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=item --[no]fail-on-stopped-replication
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@@ -1,205 +0,0 @@
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#!/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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our $delay = 10;
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my $output;
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my $exit;
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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 => $dp);
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if ($sb->is_cluster_mode) {
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plan skip_all => 'Not for PXC';
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}
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my $master_dbh = $sb->get_dbh_for('master');
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my $slave_dbh1 = $sb->get_dbh_for('slave1');
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my $slave_dbh2 = $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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my $sample = "t/pt-online-schema-change/samples";
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my $plugin = "$trunk/$sample/plugins";
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# We need sync_relay_log=1 to keep changes after replica restart
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my $cnf = '/tmp/12347/my.sandbox.cnf';
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diag(`cp $cnf $cnf.bak`);
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diag(`echo "[mysqld]" > /tmp/12347/my.sandbox.2.cnf`);
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diag(`echo "sync_relay_log=1" >> /tmp/12347/my.sandbox.2.cnf`);
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diag(`echo "sync_relay_log_info=1" >> /tmp/12347/my.sandbox.2.cnf`);
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diag(`echo "relay_log_recovery=1" >> /tmp/12347/my.sandbox.2.cnf`);
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diag(`echo "!include /tmp/12347/my.sandbox.2.cnf" >> $cnf`);
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diag(`/tmp/12347/stop >/dev/null`);
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sleep 1;
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diag(`/tmp/12347/start >/dev/null`);
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sub reset_query_cache {
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my @dbhs = @_;
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return if ($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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# 1) Set the slave delay to 0 just in case we are re-running the tests without restarting the sandbox.
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# 2) Load sample data
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# 3) Set the slave delay to 30 seconds to be able to see the 'waiting' message.
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diag("Setting slave delay to 0 seconds");
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$slave_dbh1->do('STOP SLAVE');
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$master_dbh->do("RESET MASTER");
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$slave_dbh1->do('RESET SLAVE');
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$slave_dbh1->do('START SLAVE');
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diag('Loading test data');
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$sb->load_file('master', "t/pt-online-schema-change/samples/slave_lag.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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my $chunk_size = 10;
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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 pt178 $num_rows`);
|
||||
|
||||
$sb->wait_for_slaves();
|
||||
|
||||
diag("Setting slave delay to $delay seconds");
|
||||
|
||||
$slave_dbh1->do('STOP SLAVE');
|
||||
$slave_dbh1->do("CHANGE MASTER TO MASTER_DELAY=$delay");
|
||||
$slave_dbh1->do('START SLAVE');
|
||||
|
||||
# Run a full table scan query to ensure the slave is behind the master
|
||||
# There is no query cache in MySQL 8.0+
|
||||
reset_query_cache($master_dbh, $master_dbh);
|
||||
# Update one row so slave is delayed
|
||||
$master_dbh->do('UPDATE `test`.`pt178` SET f2 = f2 + 1 LIMIT 1');
|
||||
$master_dbh->do('UPDATE `test`.`pt178` SET f2 = f2 + 1 WHERE f1 = ""');
|
||||
|
||||
diag("Starting tests...");
|
||||
|
||||
my $max_lag = $delay / 2;
|
||||
# We need to sleep, otherwise pt-osc can finish before slave is delayed
|
||||
sleep($max_lag);
|
||||
|
||||
my $args = "$master_dsn,D=test,t=pt178 --execute --chunk-size ${chunk_size} --max-lag $max_lag --alter 'engine=INNODB' --pid $tmp_file_name --progress time,5 --nodrop-new-table --nodrop-triggers --history";
|
||||
|
||||
my ($fh, $filename) = tempfile();
|
||||
my $pid = fork();
|
||||
|
||||
if (!$pid) {
|
||||
open(STDERR, '>', $filename);
|
||||
open(STDOUT, '>', $filename);
|
||||
exec("$trunk/bin/pt-online-schema-change $args");
|
||||
}
|
||||
|
||||
sleep($max_lag + $max_lag/2);
|
||||
# restart slave 12347
|
||||
diag(`/tmp/12347/stop >/dev/null`);
|
||||
sleep 1;
|
||||
|
||||
waitpid($pid, 0);
|
||||
$output = do {
|
||||
local $/ = undef;
|
||||
<$fh>;
|
||||
};
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/`test`.`pt178` was not altered/s,
|
||||
"pt-osc stopped with error as expected",
|
||||
) or diag($output);
|
||||
|
||||
diag(`/tmp/12347/start >/dev/null`);
|
||||
|
||||
# Creating copy of table pt178, so we can compare data later
|
||||
diag(`/tmp/12345/use -N test -e "CREATE TABLE pt178_back like pt178"`);
|
||||
diag(`/tmp/12345/use -N test -e "INSERT INTO pt178_back SELECT * FROM pt178"`);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select job_id, upper_boundary from percona.pt_osc_history"`;
|
||||
my ($job_id, $upper_boundary) = split(/\s+/, $output);
|
||||
|
||||
my $copied_rows = `/tmp/12345/use -N -e "select count(*) from test._pt178_new"`;
|
||||
chomp($copied_rows);
|
||||
|
||||
ok(
|
||||
$copied_rows eq $upper_boundary,
|
||||
'Upper chunk boundary stored correctly'
|
||||
) or diag("Copied_rows: ${copied_rows}, upper boundary: ${upper_boundary}");;
|
||||
|
||||
my @args = (qw(--execute --chunk-size=10 --nodrop-new-table --nodrop-triggers --history));
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt178",
|
||||
'--max-lag', $max_lag,
|
||||
'--resume', $job_id,
|
||||
'--alter', 'engine=INNODB',
|
||||
#'--progress', 'time,1',
|
||||
'--plugin', "$plugin/pt-1717.pm",
|
||||
),
|
||||
},
|
||||
);
|
||||
|
||||
$output =~ /.*Chunk: (\d+)\n/ms;
|
||||
my $last_chunk = int($1);
|
||||
|
||||
ok(
|
||||
$last_chunk * $chunk_size + int($copied_rows) == $num_rows,
|
||||
'Tool inserted only missed rows in the second run'
|
||||
) or diag("Last chunk: ${last_chunk}, copied rows: ${copied_rows}");
|
||||
|
||||
my $new_table_checksum = diag(`/tmp/12345/use test -N -e "CHECKSUM TABLE pt178"`);
|
||||
my $old_table_checksum = diag(`/tmp/12345/use test -N -e "CHECKSUM TABLE pt178_back"`);
|
||||
|
||||
ok(
|
||||
$new_table_checksum eq $old_table_checksum,
|
||||
'All rows copied correctly'
|
||||
) or diag("New table checksum: ${new_table_checksum}, original content checksum: ${old_table_checksum}");
|
||||
|
||||
# #############################################################################
|
||||
# Done.
|
||||
# #############################################################################
|
||||
diag("Cleaning");
|
||||
$slave_dbh2 = $sb->get_dbh_for('slave2');
|
||||
diag("Setting slave delay to 0 seconds");
|
||||
$slave_dbh1->do('STOP SLAVE');
|
||||
$slave_dbh2->do('STOP SLAVE');
|
||||
$master_dbh->do("RESET MASTER");
|
||||
$slave_dbh1->do('RESET SLAVE');
|
||||
$slave_dbh2->do('RESET SLAVE');
|
||||
$slave_dbh1->do('START SLAVE');
|
||||
$slave_dbh2->do('START SLAVE');
|
||||
|
||||
diag(`mv $cnf.bak $cnf`);
|
||||
|
||||
diag(`/tmp/12347/stop >/dev/null`);
|
||||
diag(`/tmp/12347/start >/dev/null`);
|
||||
|
||||
diag("Dropping test database");
|
||||
$master_dbh->do("DROP DATABASE IF EXISTS test");
|
||||
$sb->wait_for_slaves();
|
||||
|
||||
$sb->wipe_clean($master_dbh);
|
||||
ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
|
||||
done_testing;
|
||||
@@ -38,25 +38,6 @@ my $sample = "t/pt-online-schema-change/samples";
|
||||
|
||||
$sb->load_file('master', "$sample/basic_no_fks_innodb.sql");
|
||||
|
||||
# First test option --history
|
||||
# * - Test done for the development step
|
||||
# ** - Test done for two development steps
|
||||
# 1.** If table percona.pt_osc not created when option not specified
|
||||
# 2. If table percona.pt_osc created when option present
|
||||
# 2.1.** Default name
|
||||
# 2.2.** Custom name
|
||||
# 2.3.** Second run should not fail or modify this table (except inserting a row for new job)
|
||||
# 2.4.** Case for binary index
|
||||
# 2.5.** Second run for the binary index
|
||||
# 2.6.** Case for invalid existing table
|
||||
# 2.7.** Case for invalid existing table and binary index
|
||||
# 3.** Inserting db, tbl, alter, args
|
||||
# 4. Updating lower and upper boundaries
|
||||
# 4.1. In situation when pt-osc finishes correctly
|
||||
# 4.1.1.* `done` set to 'yes'
|
||||
# 4.2. In failures
|
||||
# 4.2.1. `done` set to 'no'
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$dsn,D=pt_osc,t=t",
|
||||
'--alter', 'engine=innodb', '--execute') }
|
||||
@@ -319,6 +300,7 @@ is(
|
||||
) or diag($output);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.tables where TABLE_SCHEMA='pt_1717' and table_name='pt_1717_history'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
1,
|
||||
@@ -0,0 +1,419 @@
|
||||
#!/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 tempfile /;
|
||||
|
||||
our $delay = 10;
|
||||
my $max_lag = $delay / 2;
|
||||
my $output;
|
||||
my $exit;
|
||||
|
||||
my $tmp_file = File::Temp->new();
|
||||
my $tmp_file_name = $tmp_file->filename;
|
||||
unlink $tmp_file_name;
|
||||
|
||||
require "$trunk/bin/pt-online-schema-change";
|
||||
|
||||
my $dp = new DSNParser(opts=>$dsn_opts);
|
||||
my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
|
||||
if ($sb->is_cluster_mode) {
|
||||
plan skip_all => 'Not for PXC';
|
||||
}
|
||||
|
||||
my $master_dbh = $sb->get_dbh_for('master');
|
||||
my $slave_dbh1 = $sb->get_dbh_for('slave1');
|
||||
my $slave_dbh2 = $sb->get_dbh_for('slave2');
|
||||
my $master_dsn = 'h=127.0.0.1,P=12345,u=msandbox,p=msandbox';
|
||||
my $slave_dsn1 = 'h=127.0.0.1,P=12346,u=msandbox,p=msandbox';
|
||||
my $slave_dsn2 = 'h=127.0.0.1,P=12347,u=msandbox,p=msandbox';
|
||||
my $sample = "t/pt-online-schema-change/samples";
|
||||
my $plugin = "$trunk/$sample/plugins";
|
||||
|
||||
# We need sync_relay_log=1 to keep changes after replica restart
|
||||
my $cnf = '/tmp/12347/my.sandbox.cnf';
|
||||
diag(`cp $cnf $cnf.bak`);
|
||||
diag(`echo "[mysqld]" > /tmp/12347/my.sandbox.2.cnf`);
|
||||
diag(`echo "sync_relay_log=1" >> /tmp/12347/my.sandbox.2.cnf`);
|
||||
diag(`echo "sync_relay_log_info=1" >> /tmp/12347/my.sandbox.2.cnf`);
|
||||
diag(`echo "relay_log_recovery=1" >> /tmp/12347/my.sandbox.2.cnf`);
|
||||
diag(`echo "!include /tmp/12347/my.sandbox.2.cnf" >> $cnf`);
|
||||
diag(`/tmp/12347/stop >/dev/null`);
|
||||
sleep 1;
|
||||
diag(`/tmp/12347/start >/dev/null`);
|
||||
|
||||
sub reset_query_cache {
|
||||
my @dbhs = @_;
|
||||
return if ($sandbox_version >= '8.0');
|
||||
foreach my $dbh (@dbhs) {
|
||||
$dbh->do('RESET QUERY CACHE');
|
||||
}
|
||||
}
|
||||
|
||||
sub run_broken_job {
|
||||
my ($args) = @_;
|
||||
my ($fh, $filename) = tempfile();
|
||||
my $pid = fork();
|
||||
|
||||
if (!$pid) {
|
||||
open(STDERR, '>', $filename);
|
||||
open(STDOUT, '>', $filename);
|
||||
exec("$trunk/bin/pt-online-schema-change $args");
|
||||
}
|
||||
|
||||
sleep($max_lag + $max_lag/2);
|
||||
# stop slave 12347
|
||||
diag(`/tmp/12347/stop >/dev/null`);
|
||||
sleep 1;
|
||||
|
||||
waitpid($pid, 0);
|
||||
my $output = do {
|
||||
local $/ = undef;
|
||||
<$fh>;
|
||||
};
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
sub set_delay {
|
||||
$sb->wait_for_slaves();
|
||||
|
||||
diag("Setting slave delay to $delay seconds");
|
||||
diag(`/tmp/12345/use -N test -e "DROP TABLE IF EXISTS pt1717_back"`);
|
||||
|
||||
$slave_dbh1->do('STOP SLAVE');
|
||||
$slave_dbh1->do("CHANGE MASTER TO MASTER_DELAY=$delay");
|
||||
$slave_dbh1->do('START SLAVE');
|
||||
|
||||
# Run a full table scan query to ensure the slave is behind the master
|
||||
# There is no query cache in MySQL 8.0+
|
||||
reset_query_cache($master_dbh, $master_dbh);
|
||||
# Update one row so slave is delayed
|
||||
$master_dbh->do('UPDATE `test`.`pt1717` SET f2 = f2 + 1 LIMIT 1');
|
||||
$master_dbh->do('UPDATE `test`.`pt1717` SET f2 = f2 + 1 WHERE f1 = ""');
|
||||
|
||||
# Creating copy of table pt1717, so we can compare data later
|
||||
diag(`/tmp/12345/use -N test -e "CREATE TABLE pt1717_back like pt1717"`);
|
||||
diag(`/tmp/12345/use -N test -e "INSERT INTO pt1717_back SELECT * FROM pt1717"`);
|
||||
}
|
||||
|
||||
# 1) Set the slave delay to 0 just in case we are re-running the tests without restarting the sandbox.
|
||||
# 2) Load sample data
|
||||
# 3) Set the slave delay to 30 seconds to be able to see the 'waiting' message.
|
||||
diag("Setting slave delay to 0 seconds");
|
||||
$slave_dbh1->do('STOP SLAVE');
|
||||
$master_dbh->do("RESET MASTER");
|
||||
$slave_dbh1->do('RESET SLAVE');
|
||||
$slave_dbh1->do('START SLAVE');
|
||||
|
||||
diag('Loading test data');
|
||||
$sb->load_file('master', "t/pt-online-schema-change/samples/pt-1717.sql");
|
||||
|
||||
# Should be greater than chunk-size and big enough, so pt-osc will wait for delay
|
||||
my $num_rows = 5000;
|
||||
my $chunk_size = 10;
|
||||
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 pt1717 $num_rows`);
|
||||
|
||||
diag("Starting tests...");
|
||||
|
||||
set_delay();
|
||||
|
||||
# We need to sleep, otherwise pt-osc can finish before slave is delayed
|
||||
sleep($max_lag);
|
||||
|
||||
my $args = "$master_dsn,D=test,t=pt1717 --execute --chunk-size ${chunk_size} --max-lag $max_lag --alter 'engine=INNODB' --pid $tmp_file_name --progress time,5 --nodrop-new-table --nodrop-triggers --history";
|
||||
|
||||
$output = run_broken_job($args);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/`test`.`pt1717` was not altered/s,
|
||||
"pt-osc stopped with error as expected",
|
||||
) or diag($output);
|
||||
|
||||
diag(`/tmp/12347/start >/dev/null`);
|
||||
$sb->wait_for_slaves();
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select job_id, upper_boundary from percona.pt_osc_history"`;
|
||||
my ($job_id, $upper_boundary) = split(/\s+/, $output);
|
||||
|
||||
my $copied_rows = `/tmp/12345/use -N -e "select count(*) from test._pt1717_new"`;
|
||||
chomp($copied_rows);
|
||||
|
||||
ok(
|
||||
$copied_rows eq $upper_boundary,
|
||||
'Upper chunk boundary stored correctly'
|
||||
) or diag("Copied_rows: ${copied_rows}, upper boundary: ${upper_boundary}");;
|
||||
|
||||
my @args = (qw(--execute --chunk-size=10 --history));
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=INNODB', '--execute', "--resume=${job_id}",
|
||||
'--chunk-index=f2'
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
17,
|
||||
'pt-osc --resume correctly fails if --chunk-index is different from the --chunk-index in the stored job'
|
||||
) or diag($exit);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/User-specified chunk index does not match stored one/i,
|
||||
'Error message printed for the different --chunk-index option'
|
||||
) or diag($output);
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--max-lag', $max_lag,
|
||||
'--resume', $job_id,
|
||||
'--alter', 'engine=INNODB',
|
||||
'--plugin', "$plugin/pt-1717.pm",
|
||||
),
|
||||
},
|
||||
);
|
||||
|
||||
$output =~ /.*Chunk: (\d+)\n/ms;
|
||||
my $last_chunk = int($1);
|
||||
|
||||
ok(
|
||||
$last_chunk * $chunk_size + int($copied_rows) == $num_rows,
|
||||
'Tool inserted only missed rows in the second run'
|
||||
) or diag("Last chunk: ${last_chunk}, copied rows: ${copied_rows}");
|
||||
|
||||
my $new_table_checksum = diag(`/tmp/12345/use test -N -e "CHECKSUM TABLE pt1717"`);
|
||||
my $old_table_checksum = diag(`/tmp/12345/use test -N -e "CHECKSUM TABLE pt1717_back"`);
|
||||
|
||||
ok(
|
||||
$new_table_checksum eq $old_table_checksum,
|
||||
'All rows copied correctly'
|
||||
) or diag("New table checksum: '${new_table_checksum}', original content checksum: '${old_table_checksum}'");
|
||||
|
||||
# Tests for chunk-index and chunk-index-columns options
|
||||
$args = "$master_dsn,D=test,t=pt1717 --alter engine=innodb --execute --history --chunk-size=10 --no-drop-new-table --no-drop-triggers --reverse-triggers --chunk-index=f2";
|
||||
|
||||
set_delay();
|
||||
$output = run_broken_job($args);
|
||||
diag(`/tmp/12347/start >/dev/null`);
|
||||
|
||||
$output =~ /History saved. Job id: (\d+)/ms;
|
||||
$job_id = $1;
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=innodb', '--execute', "--resume=${job_id}",
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
17,
|
||||
'pt-osc --resume correctly fails if --chunk-index option not specified for the job run with custom --chunk-index'
|
||||
) or diag($exit);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/User-specified chunk index does not match stored one/i,
|
||||
'Error message printed for the missed --chunk-index option'
|
||||
) or diag($output);
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=innodb', '--execute', "--resume=${job_id}",
|
||||
'--chunk-index=f1'
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
17,
|
||||
'pt-osc --resume correctly fails if --chunk-index is different from the --chunk-index in the stored job'
|
||||
) or diag($exit);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/User-specified chunk index does not match stored one/i,
|
||||
'Error message printed for the different --chunk-index option'
|
||||
) or diag($output);
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=innodb', '--execute', "--resume=${job_id}",
|
||||
'--chunk-index=f2', '--chunk-index-columns=1'
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
17,
|
||||
'pt-osc --resume correctly fails if --chunk-index-columns is different from the --chunk-index-columns in the stored job'
|
||||
) or diag($exit);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/User-specified chunk index does not match stored one/i,
|
||||
'Error message printed for the different --chunk-index-columns option'
|
||||
) or diag($output);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.tables where TABLE_SCHEMA='test' and table_name like '%pt1717%' and table_name != 'pt1717_back'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
2,
|
||||
'Table was not dropped'
|
||||
);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.triggers where TRIGGER_SCHEMA='test' AND EVENT_OBJECT_TABLE='pt1717' AND trigger_name NOT LIKE 'rt_%'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
3,
|
||||
'Triggers were not dropped'
|
||||
);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.triggers where TRIGGER_SCHEMA='test' AND EVENT_OBJECT_TABLE like '%pt1717%_new' AND trigger_name LIKE 'rt_%'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
3,
|
||||
'Reverse triggers were not dropped'
|
||||
);
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=innodb', '--execute', "--resume=${job_id}",
|
||||
'--chunk-size=4',
|
||||
'--chunk-index=f2'
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
0,
|
||||
'pt-osc --resume finishes correctly if --chunk-index option points to the same index as previous job run'
|
||||
) or diag($output);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.tables where TABLE_SCHEMA='test' and table_name like '%pt1717%' and table_name != 'pt1717_back'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
1,
|
||||
'Table was dropped after successful change'
|
||||
);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.triggers where TRIGGER_SCHEMA='test' AND EVENT_OBJECT_TABLE = 'pt1717' AND TRIGGER_NAME NOT LIKE 'rt_%'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
0,
|
||||
'Triggers were dropped after successful change'
|
||||
);
|
||||
|
||||
$output = `/tmp/12345/use -N -e "select count(*) from information_schema.triggers where TRIGGER_SCHEMA='test' AND EVENT_OBJECT_TABLE = 'pt1717' AND TRIGGER_NAME LIKE 'rt_%'"`;
|
||||
|
||||
is(
|
||||
$output + 0,
|
||||
3,
|
||||
'Reverse triggers were dropped after successful change'
|
||||
);
|
||||
|
||||
$new_table_checksum = diag(`/tmp/12345/use test -N -e "CHECKSUM TABLE pt1717"`);
|
||||
$old_table_checksum = diag(`/tmp/12345/use test -N -e "CHECKSUM TABLE pt1717_back"`);
|
||||
|
||||
ok(
|
||||
$new_table_checksum eq $old_table_checksum,
|
||||
'All rows copied correctly'
|
||||
) or diag("New table checksum: '${new_table_checksum}', original content checksum: '${old_table_checksum}'");
|
||||
|
||||
`/tmp/12345/use test -N -e "UPDATE percona.pt_osc_history SET done = 'no' where job_id='${job_id}'"`;
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=innodb', '--execute', "--resume=${job_id}",
|
||||
'--chunk-size=4',
|
||||
'--chunk-index=f2'
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
17,
|
||||
'--resume expectedly fails when new table does not exists'
|
||||
);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/New table `test`.`[_]+pt1717_new` not found, restart operation from scratch/i,
|
||||
'Correct error message printed for the missed new table'
|
||||
) or diag($output);
|
||||
|
||||
$output =~ /New table `test`.`([_]+pt1717_new)` not found, restart operation from scratch/i;
|
||||
|
||||
`/tmp/12345/use test -N -e "CREATE TABLE $1 LIKE pt1717"`;
|
||||
|
||||
($output, $exit) = full_output(
|
||||
sub { pt_online_schema_change::main(@args, "$master_dsn,D=test,t=pt1717",
|
||||
'--alter', 'engine=innodb', '--execute', "--resume=${job_id}",
|
||||
'--chunk-size=4',
|
||||
'--chunk-index=f2'
|
||||
) }
|
||||
);
|
||||
|
||||
is(
|
||||
$exit,
|
||||
17,
|
||||
'--resume expectedly fails when triggers do not exists'
|
||||
);
|
||||
|
||||
like(
|
||||
$output,
|
||||
qr/Trigger test.pt_osc_test_pt1717_\w{3} not found, restart operation from scratch to avoid data loss/i,
|
||||
'Correct error message printed for the missed triggers'
|
||||
) or diag($output);
|
||||
|
||||
# #############################################################################
|
||||
# Done.
|
||||
# #############################################################################
|
||||
diag("Cleaning");
|
||||
$slave_dbh2 = $sb->get_dbh_for('slave2');
|
||||
diag("Setting slave delay to 0 seconds");
|
||||
$slave_dbh1->do('STOP SLAVE');
|
||||
$slave_dbh2->do('STOP SLAVE');
|
||||
$master_dbh->do('RESET MASTER');
|
||||
$slave_dbh1->do('RESET MASTER');
|
||||
$slave_dbh1->do('RESET SLAVE');
|
||||
$slave_dbh2->do('RESET SLAVE');
|
||||
$slave_dbh1->do('START SLAVE');
|
||||
$slave_dbh2->do('START SLAVE');
|
||||
|
||||
diag(`mv $cnf.bak $cnf`);
|
||||
|
||||
diag(`/tmp/12347/stop >/dev/null`);
|
||||
diag(`/tmp/12347/start >/dev/null`);
|
||||
|
||||
diag("Dropping test database");
|
||||
$master_dbh->do("DROP DATABASE IF EXISTS test");
|
||||
$sb->wait_for_slaves();
|
||||
|
||||
$sb->wipe_clean($master_dbh);
|
||||
ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
|
||||
done_testing;
|
||||
@@ -0,0 +1,15 @@
|
||||
DROP DATABASE IF EXISTS test;
|
||||
CREATE DATABASE test;
|
||||
USE test;
|
||||
|
||||
DROP TABLE IF EXISTS `pt1717`;
|
||||
/*!40101 SET @saved_cs_client = @@character_set_client */;
|
||||
/*!40101 SET character_set_client = utf8 */;
|
||||
CREATE TABLE `pt1717` (
|
||||
`id` int(11) NOT NULL AUTO_INCREMENT,
|
||||
f1 VARCHAR(30) DEFAULT '',
|
||||
f2 BIGINT(11) DEFAULT 0,
|
||||
PRIMARY KEY(id),
|
||||
KEY(f2),
|
||||
KEY(f1, f2)
|
||||
) ENGINE=InnoDB;
|
||||
Reference in New Issue
Block a user