diff options
| -rwxr-xr-x | check_postgres.pl | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/check_postgres.pl b/check_postgres.pl index 3616e05aa..90f168bbc 100755 --- a/check_postgres.pl +++ b/check_postgres.pl @@ -863,6 +863,7 @@ our $action_info = { txn_wraparound => [1, 'See how close databases are getting to transaction ID wraparound.'], version => [1, 'Check for proper Postgres version.'], wal_files => [1, 'Check the number of WAL files in the pg_xlog directory'], + archive_ready => [1, 'Check the number of WAL files ready in the pg_xlog/archive_status'], }; ## XXX Need to i18n the above @@ -1243,6 +1244,7 @@ our %testaction = ( txn_idle => 'ON: stats_command_string(<8.3) VERSION: 8.0', txn_time => 'VERSION: 8.3', wal_files => 'VERSION: 8.1', + archive_ready => 'VERSION: 8.1', fsm_pages => 'VERSION: 8.2 MAX: 8.3', fsm_relations => 'VERSION: 8.2 MAX: 8.3', ); @@ -1427,6 +1429,9 @@ check_version() if $action eq 'version'; ## Check the number of WAL files. warning and critical are numbers check_wal_files() if $action eq 'wal_files'; +## Check the number of WAL files ready to archive. warning and critical are numbers +check_archive_ready() if $action eq 'archive_ready'; + ## Check the maximum transaction age of all connections check_txn_time() if $action eq 'txn_time'; @@ -7035,6 +7040,47 @@ sub check_wal_files { } ## end of check_wal_files +sub check_archive_ready { + + ## Check on the number of WAL archive with status "ready" + ## Supports: Nagios, MRTG + ## Must run as a superuser + ## Critical and warning are the number of files + ## Example: --critical=10 + + my ($warning, $critical) = validate_range({type => 'integer', leastone => 1}); + + $SQL = q{SELECT count(*) FROM pg_ls_dir('pg_xlog/archive_status') WHERE pg_ls_dir ~ E'^[0-9A-F]{24}.ready$';}; + + my $info = run_command($SQL, {regex => qr[\d] }); + + my $found = 0; + for $db (@{$info->{db}}) { + my $r = $db->{slurp}[0]; + my $numfiles = $r->{count}; + if ($MRTG) { + $stats{$db->{dbname}} = $numfiles; + $statsmsg{$db->{dbname}} = ''; + next; + } + my $msg = qq{$numfiles}; + $db->{perf} .= " '$db->{host}'=$numfiles;$warning;$critical"; + if (length $critical and $numfiles > $critical) { + add_critical $msg; + } + elsif (length $warning and $numfiles > $warning) { + add_warning $msg; + } + else { + add_ok $msg; + } + } + + return; + +} ## end of check_archive_ready + + =pod =head1 NAME @@ -8360,6 +8406,26 @@ Example 1: Check that the number of WAL files is 20 or less on host "pluto" For MRTG output, reports the number of WAL files on line 1. +=head2 B<archive_ready> + +(C<symlink: check_postgres_archive_ready>) Checks how many WAL files with extension F<.ready> +exist in the F<pg_xlog/archive_status> directory, which is found +off of your B<data_directory>. This action must be run as a superuser, in order to access the +contents of the F<pg_xlog/archive_status> directory. The minimum version to use this action is +Postgres 8.1. The I<--warning> and I<--critical> options are simply the number of +F<.ready> files in the F<pg_xlog/archive_status> directory. +Usually, these values should be low, turning on the archive mechanism, we usually want it to +archive WAL files as fast as possible. + +If the archive command fail, number of WAL in your F<pg_xlog> directory will grow until +exhausting all the disk space and force PostgreSQL to stop immediatly. + +Example 1: Check that the number of ready WAL files is 10 or less on host "pluto" + + check_postgres_archive_ready --host=pluto --critical=10 + +For MRTG output, reports the number of ready WAL files on line 1. + =head2 B<version> (C<symlink: check_postgres_version>) Checks that the required version of Postgres is running. The |