On 2017-05-08 11:27, Masahiko Sawada wrote:
Hi,
I encountered a situation where DROP SUBSCRIPTION got stuck when
initial table sync is in progress. In my environment, I created
several tables with some data on publisher. I created subscription on
subscriber and drop subscription immediately after that. It doesn't
always happen but I often encountered it on my environment.
ps -x command shows the following.
96796 ? Ss 0:00 postgres: masahiko postgres [local] DROP
SUBSCRIPTION
96801 ? Ts 0:00 postgres: bgworker: logical replication
worker for subscription 40993 waiting
96805 ? Ss 0:07 postgres: bgworker: logical replication
worker for subscription 40993 sync 16418
96806 ? Ss 0:01 postgres: wal sender process masahiko
[local] idle
96807 ? Ss 0:00 postgres: bgworker: logical replication
worker for subscription 40993 sync 16421
96808 ? Ss 0:00 postgres: wal sender process masahiko
[local] idle
FWIW, running
0001-WIP-Fix-off-by-one-around-GetLastImportantRecPtr.patch+
0002-WIP-Possibly-more-robust-snapbuild-approach.patch +
fix-statistics-reporting-in-logical-replication-work.patch
(on top of 44c528810)
I have encountered the same condition as well in the last few days, a
few times (I think 2 or 3 times).
Erik Rijkers
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