diff options
Diffstat (limited to 'check_postgres.pl')
| -rw-r--r--[-rwxr-xr-x] | check_postgres.pl | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/check_postgres.pl b/check_postgres.pl index d79ef39b5..f49934369 100755..100644 --- a/check_postgres.pl +++ b/check_postgres.pl @@ -1231,6 +1231,7 @@ GetOptions( 'no-check_postgresrc', 'assume-standby-mode', 'assume-prod', + 'assume-async', 'action=s', 'warning=s', @@ -1511,6 +1512,7 @@ Limit options: Other options: --assume-standby-mode assume that server in continious WAL recovery mode --assume-prod assume that server in production mode + --assume-async assume that any replication is asynchronous --PGBINDIR=PATH path of the postgresql binaries; avoid using if possible --PSQL=FILE (deprecated) location of the psql executable; avoid using if possible -v, --verbose verbosity level; can be used more than once to increase the level @@ -6750,8 +6752,7 @@ sub check_same_schema { [table => 'reltype,relfrozenxid,relminmxid,relpages, reltuples,relnatts,relallvisible', '' ], [view => 'reltype', '' ], - [sequence => 'reltype,log_cnt,relnatts,is_called, - last_value', '' ], + [sequence => 'reltype,log_cnt,relnatts,is_called', '' ], [index => 'relpages,reltuples,indpred,indclass, indexprs,indcheckxmin,reltablespace, indkey', '' ], @@ -7000,8 +7001,8 @@ sub check_same_schema { next if $one eq '' and $two eq '-'; } - ## If we are doing a historical comparison, skip some items - if ($samedb) { + ## If we are doing a historical comparison or checking asynchronous replicas, skip some items + if ($samedb or $opt{'assume-async'}) { if ($item eq 'sequence' and $col eq 'last_value') { next; @@ -8592,6 +8593,14 @@ Example: postgres@db$./check_postgres.pl --action=checkpoint --datadir /var/lib/postgresql/8.3/main/ --assume-prod POSTGRES_CHECKPOINT OK: Last checkpoint was 72 seconds ago | age=72;;300 mode=MASTER +=item B<--assume-async> + +If specified, indicates that any replication between servers is asynchronous. +The option is only relevant for (C<symlink: check_postgres_same_schema>). + +Example: + postgres@db$./check_postgres.pl --action=same_schema --assume-async --dbhost=star,line + =item B<-h> or B<--help> Displays a help screen with a summary of all actions and options. @@ -9836,6 +9845,9 @@ To replace the old stored file with the new version, use the --replace argument. If you need to write the stored file to a specific direectory, use the --audit-file-dir argument. +To avoid false positives on value based checks caused by replication lag on +asynchronous replicas, use the I<--assume-async> option. + To enable snapshots at various points in time, you can use the "--suffix" argument to make the filenames unique to each run. See the examples below. @@ -9864,6 +9876,10 @@ Example 6: Run a historical comparison, then replace the file check_postgres_same_schema --dbname=cylon --suffix=daily --replace +Example 7: Verify that two databases on hosts star and line are the same, excluding value data (i.e. sequence last_val): + + check_postgres_same_schema --dbhost=star,line --assume-async + =head2 B<sequence> (C<symlink: check_postgres_sequence>) Checks how much room is left on all sequences in the database. |