diff options
| author | Noah Misch <noah@leadboat.com> | 2020-04-11 10:30:00 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2020-04-11 10:30:00 -0700 |
| commit | 421685812290406daea58b78dfab0346eb683bbb (patch) | |
| tree | 84e435a42fb61d2363c725f35bccb4c3d575846e /src/backend/executor/execReplication.c | |
| parent | 969f9d0b4ba574bb8df65683dbf7a09c030f3e67 (diff) | |
| download | postgresql-421685812290406daea58b78dfab0346eb683bbb.tar.gz postgresql-421685812290406daea58b78dfab0346eb683bbb.zip | |
When WalSndCaughtUp, sleep only in WalSndWaitForWal().
Before sleeping, WalSndWaitForWal() sends a keepalive if MyWalSnd->write
< sentPtr. That is important in logical replication. When the latest
physical LSN yields no logical replication messages (a common case),
that keepalive elicits a reply, and processing the reply updates
pg_stat_replication.replay_lsn. WalSndLoop() lacks that; when
WalSndLoop() slept, replay_lsn advancement could stall until
wal_receiver_status_interval elapsed. This sometimes stalled
src/test/subscription/t/001_rep_changes.pl for up to 10s.
Discussion: https://postgr.es/m/20200406063649.GA3738151@rfd.leadboat.com
Diffstat (limited to 'src/backend/executor/execReplication.c')
0 files changed, 0 insertions, 0 deletions