| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Autovacuum launcher doesn't notice death of postmaster immediately |
| Date: | 2007-06-02 20:19:15 |
| Message-ID: | 200706022219.16212.peter_e@gmx.net |
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| Lists: | pgsql-hackers pgsql-patches |
I notice that in 8.3, when I kill the postmaster process with SIGKILL or
SIGSEGV, the child processes writer and stats collector go away
immediately, but the autovacuum launcher hangs around for up to a
minute. (I suppose this has to do with the periodic wakeups?). When
you try to restart the postmaster before that it fails with a complaint
that someone is still attached to the shared memory segment.
These are obviously not normal modes of operation, but I fear that this
could cause some problems with people's control scripts of the
sort, "it crashed, let's try to restart it".
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
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