| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Oliver Jowett <oliver(at)opencloud(dot)com> |
| Cc: | Jan Wieck <JanWieck(at)Yahoo(dot)com>, Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: stats collector dies in current |
| Date: | 2004-08-15 06:15:29 |
| Message-ID: | 23669.1092550529@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Oliver Jowett <oliver(at)opencloud(dot)com> writes:
> Tom Lane wrote:
>> However, I would still like to know why 7.4 didn't show the same
>> misbehavior, when it isn't using this flag.
> It looks like the 7.4 code never unblocks signals in the collector
> process, so that process never gets stopped by SIGTSTP.
Good catch --- that seems to explain all the facts.
Since the collector SIG_IGN's all the signals it'd be likely to get in
normal operation, it's not surprising we did not notice this.
regards, tom lane
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