Re: [HACKERS] postmaster dies (6.5.3)

From: Matthew Hagerty <matthew(at)venux(dot)net>
To: Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, pgsql-hackers(at)postgreSQL(dot)org
Cc: "E(dot)Rodichev" <er(at)sai(dot)msu(dot)su>
Subject: Re: [HACKERS] postmaster dies (6.5.3)
Date: 1999-12-15 19:58:22
Message-ID: 4.1.19991215145750.009e0910@mail.venux.net
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Umm, sorry, I hit reply to the wrong message...

Matthew

At 02:40 PM 12/15/99 -0500, Matthew Hagerty wrote:
>Thanks for the patch. I think I'm going to upgrade to FreeBSD-3.3 and
>PG-6.5.3 tonight. Will I still need the patch with 6.5.3? I'm also going
>to do a connection test on another offline server to see if it is indeed a
>load problem. I'll post the results if anyone is interested.
>
>Thank you for the help,
>Matthew
>
>At 11:15 AM 12/15/99 +0300, Oleg Bartunov wrote:
>>Hi,
>>
>>I got seriuos problem this night with postgres which is running as
>>db backend to apache. I have cron job which vacuuming database
>>every hour and it worked for weeks without problem
>>(well, there is problem with concurrent processes under high load,
>>but this night was very quiet)
>>
>>Here is the processes currently seen:
>>
>> 167 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd nature
>idle
>> 168 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd nature
>idle
>> 169 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd nature
>idle
>> 170 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd nature
>idle
>> 171 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd nature
>idle
>>26578 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd nature
>idle
>>29372 ? S 0:00 /usr/local/pgsql/bin/postgres localhost httpd discovery
>>idle
>>
>>
>>from apache's error log:
>>[Wed Dec 15 02:10:08 1999] [error] DBI->connect failed: connectDB() --
>>couldn't
>> send startup packet: errno=32
>>Broken pipe
>> at /opt/perl5/lib/site_perl/5.005/Apache/DBI.pm line 138
>>
>>[Wed Dec 15 02:10:08 1999] [error] DBI->connect failed: pqReadData() --
>>backend
>>closed the channel unexpectedly.
>> This probably means the backend terminated abnormally
>> before or while processing the request.
>> at /opt/perl5/lib/site_perl/5.005/Apache/DBI.pm line 138
>>
>>[Wed Dec 15 02:10:43 1999] [error] DBI->connect failed: connectDB() --
>>connect()
>> failed: No such file or directory
>>Is the postmaster running at 'localhost' and accepting connections on Unix
>>socke
>>t '5432'?
>> at /opt/perl5/lib/site_perl/5.005/Apache/DBI.pm line 138
>>
>>
>>fortunately postmaster was started with debug option:
>>
>>StartTransactionCommand
>>query: SET client_encoding = 'KOI8'
>>ProcessUtility: SET client_encoding = 'KOI8'
>>CommitTransactionCommand
>>postmaster: StreamConnection: accept: Invalid argument
>>/usr/local/pgsql/bin/postmaster: ServerLoop: handling reading 6
>>/usr/local/pgsql/bin/postmaster: ServerLoop: handling reading 6
>>FATAL 1: ReleaseLruFile: No opened files - no one can be closed
>>proc_exit(0) [#0]
>>shmem_exit(0) [#0]
>>exit(0)
>>
>>Aha,
>>
>>>From system log files I found probable explanation - file table overflow !
>>Could this be a reason of postmaster dead and how to avoid this ?
>>
>>Dec 15 01:47:27 zeus kernel: Unable to load interpreter
>>Dec 15 02:09:28 zeus xntpd[103]: kernel pll status change 89
>>Dec 15 02:10:08 zeus squid[133]: file_open: error opening file
>>/d4/squid/cache/0
>>2/69/00001692: (23) File table overflow
>>Dec 15 02:10:08 zeus squid[133]: storeSwapInStart: Failed for
>>'http://xyz.tvcom.
>>ru/99/12/100_2.jpg'
>>Dec 15 02:10:12 zeus kernel: Unable to load interpreter
>>Dec 15 03:26:16 zeus xntpd[103]: kernel pll status change 89
>>
>>
>> Regards,
>>
>> Oleg
>>_____________________________________________________________
>>Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
>>Sternberg Astronomical Institute, Moscow University (Russia)
>>Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
>>phone: +007(095)939-16-83, +007(095)939-23-83
>>
>>
>>************
>
>
>************

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