diff options
| author | Alexander Korotkov <akorotkov@postgresql.org> | 2023-12-25 00:52:42 +0200 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2023-12-25 01:12:36 +0200 |
| commit | 12915a58eec962f407a6c38ce2bf08a48dde57b5 (patch) | |
| tree | 157866d53bed7766c4bb41ee7be37b0cc4579fb7 /src/test | |
| parent | 64e77b496af61ee31189ba69b40e785e11e9967f (diff) | |
Enhance checkpointer restartpoint statistics
Bhis commit introduces enhancements to the pg_stat_checkpointer view by adding
three new columns: restartpoints_timed, restartpoints_req, and
restartpoints_done. These additions aim to improve the visibility and
monitoring of restartpoint processes on replicas.
Previously, it was challenging to differentiate between successful and failed
restartpoint requests. This limitation arises because restartpoints on replicas
are dependent on checkpoint records from the primary, and cannot occur more
frequently than these checkpoints.
The new columns allow for clear distinction and tracking of restartpoint
requests, their triggers, and successful completions. This enhancement aids
database administrators and developers in better understanding and diagnosing
issues related to restartpoint behavior, particularly in scenarios where
restartpoint requests may fail.
System catalog is changed. Catversion is bumped.
Discussion: https://postgr.es/m/99b2ccd1-a77a-962a-0837-191cdf56c2b9%40inbox.ru
Author: Anton A. Melnikov
Reviewed-by: Kyotaro Horiguchi, Alexander Korotkov
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/regress/expected/rules.out | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/test/regress/expected/rules.out b/src/test/regress/expected/rules.out index 05070393b99..f645e8486bf 100644 --- a/src/test/regress/expected/rules.out +++ b/src/test/regress/expected/rules.out @@ -1822,6 +1822,9 @@ pg_stat_bgwriter| SELECT pg_stat_get_bgwriter_buf_written_clean() AS buffers_cle pg_stat_get_bgwriter_stat_reset_time() AS stats_reset; pg_stat_checkpointer| SELECT pg_stat_get_checkpointer_num_timed() AS num_timed, pg_stat_get_checkpointer_num_requested() AS num_requested, + pg_stat_get_checkpointer_restartpoints_timed() AS restartpoints_timed, + pg_stat_get_checkpointer_restartpoints_requested() AS restartpoints_req, + pg_stat_get_checkpointer_restartpoints_performed() AS restartpoints_done, pg_stat_get_checkpointer_write_time() AS write_time, pg_stat_get_checkpointer_sync_time() AS sync_time, pg_stat_get_checkpointer_buffers_written() AS buffers_written, |