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Re: BUG #3995: pqSocketCheck doesn't return

From: "Noro, Kyouko" <kyouko(dot)Noro(at)hp(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "pgsql-bugs(at)postgresql(dot)org" <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: BUG #3995: pqSocketCheck doesn't return
Date: 2008-02-29 04:02:03
Message-ID: E384551E2EBA4B4FA0A6CBA08F473DC4095B5CE423@G5W0279.americas.hpqcorp.net (view raw or flat)
Thread:
Lists: pgsql-bugs
Hello Tom,

Thank you for your reply.

>pqSocketCheck isn't accessible from outside libpq
Yes, I see.
SQL in our application is hang sometimes.
I saw gdb backtrace as follows.

(gdb) bt
#0 0x900bc8bc in poll ()
#2 0x0149abd2 in pqSocketCheck ()
・・・

I've been searching some cases like this but I've not had yet.
So If you have any bug reports, may I ask your advice?

Best raguard,
/kyoko noro

-----Original Message-----
From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
Sent: Friday, February 29, 2008 12:37 PM
To: Noro, Kyouko
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: [BUGS] BUG #3995: pqSocketCheck doesn't return

"Kyoko Noro" <kyouko(dot)noro(at)hp(dot)com> writes:
> Sometimes pqSocketCheck doesn't return and our appication hang.

pqSocketCheck isn't accessible from outside libpq, and furthermore it's often called with the *intention* of waiting for something to happen.  You need to provide more details of what you are doing and what is happening (vs. what you expected to happen).

                        regards, tom lane

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