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Add wait event for fsync of WAL segments

This has been visibly a forgotten spot in the first implementation of
wait events for I/O added by 249cf07, and what has been missing is a
fsync call for WAL segments which is a wrapper reacting on the value of
GUC wal_sync_method.

Reported-by: Konstantin Knizhnik
Author: Konstantin Knizhnik
Reviewed-by: Craig Ringer, Michael Paquier
Discussion: https://postgr.es/m/4a243897-0ad8-f471-aa40-242591f2476e@postgrespro.ru
This commit is contained in:
Michael Paquier
2018-07-02 22:19:46 +09:00
parent c072e80337
commit c55de5e512
4 changed files with 10 additions and 0 deletions

View File

@@ -1674,6 +1674,10 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry><literal>WALSenderTimelineHistoryRead</literal></entry>
<entry>Waiting for a read from a timeline history file during walsender timeline command.</entry>
</row>
<row>
<entry><literal>WALSync</literal></entry>
<entry>Waiting for a WAL file to reach stable storage.</entry>
</row>
<row>
<entry><literal>WALSyncMethodAssign</literal></entry>
<entry>Waiting for data to reach stable storage while assigning WAL sync method.</entry>