From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> |
Cc: | "Anoo Sivadasan Pillai" <aspillai(at)in(dot)rm(dot)com>, pgsql-admin(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: FW: max_connections and shared_buffers |
Date: | 2007-09-03 13:42:21 |
Message-ID: | 7894.1188826941@sss.pgh.pa.us |
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Lists: | pgsql-admin pgsql-hackers |
"Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> writes:
> Not sure with Windows. I'm strictly a unix type of guy. I'm guessing
> that Windows is detecting too many connections / out of memory and
> shutting down the service.
The whole thing is pretty strange. "received fast shutdown request"
means that the postmaster got SIGINT --- a moment's look at the code
proves there is no other possibility. Now what sent it SIGINT?
AFAICS there are only two possible paths: "pg_ctl stop -m fast" or
this little bit of code in win32/signal.c:
/* Console control handler will execute on a thread created
by the OS at the time of invocation */
static BOOL WINAPI
pg_console_handler(DWORD dwCtrlType)
{
if (dwCtrlType == CTRL_C_EVENT ||
dwCtrlType == CTRL_BREAK_EVENT ||
dwCtrlType == CTRL_CLOSE_EVENT ||
dwCtrlType == CTRL_SHUTDOWN_EVENT)
{
pg_queue_signal(SIGINT);
return TRUE;
}
return FALSE;
}
Can any Windows hackers speculate on causes of this?
regards, tom lane
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