From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Magnus Hagander <magnus(at)hagander(dot)net>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: pg_terminate_backend() issues |
Date: | 2008-04-16 17:19:01 |
Message-ID: | 200804161719.m3GHJ1K00964@momjian.us |
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Lists: | pgsql-committers pgsql-hackers |
Tom Lane wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > Tom Lane wrote:
> >> The closest thing I can think of to an automated test is to run repeated
> >> sets of the parallel regression tests, and each time SIGTERM a randomly
> >> chosen backend at a randomly chosen time. Then see if anything "funny"
>
> > Yep, that was my plan, plus running the parallel regression tests you
> > get the possibility of >2 backends.
>
> I was intentionally suggesting only one kill per test cycle. Multiple
> kills will probably create an O(N^2) explosion in the set of possible
> downstream-failure deltas. I doubt you'd really get any improvement
> in testing coverage to justify the much larger amount of hand validation
> needed.
No, the point is that you have >2 backends to choose from to kill.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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