| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Michael Paquier <michael(at)paquier(dot)xyz> |
| Cc: | Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Yuli Khodorkovskiy <yuli(dot)khodorkovskiy(at)crunchydata(dot)com>, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #15804: Assertion failure when using logging_collector with EXEC_BACKEND |
| Date: | 2019-09-11 15:47:07 |
| Message-ID: | 4024.1568216827@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Michael Paquier <michael(at)paquier(dot)xyz> writes:
> On Tue, Sep 10, 2019 at 10:58:52AM -0400, Tom Lane wrote:
>> Here's a version that does it like that. After studying things a bit,
>> it seemed like a good idea to also move RemovePgTempFiles() down,
>> so that that possibly-slow step still occurs after making the external
>> PID file. Everything else that we've moved to before that step
>> should be reasonably quick.
> Good point. Nothing more to add with this version. Thanks for
> caring.
I did one final round of testing and noted that in a Linux EXEC_BACKEND
build, this last change causes the race condition that was noted upthread:
RemovePgTempFiles could remove the parameter file that the syslogger
process is supposed to consume. So I split off the clearing of that
subdirectory as we'd discussed, and pushed it. Thanks for reviewing!
regards, tom lane
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