Horton

Re: More race conditions in logical replication

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Petr Jelinek <petr.jelinek@2ndquadrant.com>
Cc: pgsql-hackers@postgreSQL.org, Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Date: 2017-07-26T23:30:21Z
Lists: pgsql-hackers 
Alvaro Herrera wrote:

> Hmm, yeah, that's not good.  However, I didn't like the idea of putting
> it inside the locked area, as it's too much code.  Instead I added just
> before acquiring the spinlock.  We cancel the sleep unconditionally
> later on if we didn't need to sleep after all.

I just noticed that Jacana failed again in the subscription test, and it
looks like it's related to this.  I'll take a look tomorrow if no one
beats me to it.
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=jacana&dt=2017-07-26%2014%3A39%3A54

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Fix vertical spanning in table "wait_event Description".

  2. Fix replication origin-related race conditions

  3. Fix inadequacies in recently added wait events

  4. Fix race conditions in replication slot operations