Re: WARNING: terminating connection because of crash of another server process

It looks like maybe your semaphores are getting deleted out from under PG as a guess.

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From: pgsql-admin-owner(at)postgresql(dot)org <pgsql-admin-owner(at)postgresql(dot)org> on behalf of Saeed Ahmed (DB) <saeed(dot)ahmed1(at)telenor(dot)com(dot)pk>
Sent: Monday, September 18, 2017 7:32 AM
To: pgsql-admin(at)postgresql(dot)org
Subject: [ADMIN] WARNING: terminating connection because of crash of another server process

Dear Team,

We are having POSGRESQL version 9.6 installed on OS version Linux REDHAT 7.2. While running our Decoder (for larger load) OR Audit execution, we are seeing connection errors as service to DB goes down when application tries to connect to postgres.

Log file is attached.

2017-09-14 00:35:16 ICT [5769]: [1-1] user=,db=,app=,client= LOG: checkpoint starting: time

2017-09-14 00:35:16 ICT [5769]: [2-1] user=,db=,app=,client= LOG: checkpoint complete: wrote 3 buffers (0.0%); 0 transaction log file(s) added, 0 removed, 0 recycled; write=0.486 s, sync=0.000 s, total=0.491 s; sync files=3, longest=0.000 s, average=0.000 s; distance=23 kB, estimate=23 kB

2017-09-14 00:39:01 ICT [5803]: [1-1] user=[unknown],db=[unknown],app=[unknown],client=[local] LOG: connection received: host=[local]

2017-09-14 00:39:01 ICT [5803]: [2-1] user=postgres,db=postgres,app=[unknown],client=[local] LOG: connection authorized: user=postgres database=postgres

2017-09-14 00:39:01 ICT [5803]: [3-1] user=postgres,db=postgres,app=psql,client=[local] LOG: disconnection: session time: 0:00:00.008 user=postgres database=postgres host=[local]

2017-09-14 00:39:16 ICT [5812]: [1-1] user=,db=,app=,client= FATAL: semctl(1693253819, 10, SETVAL, 0) failed: Invalid argument

2017-09-14 00:39:16 ICT [1617]: [13584-1] user=,db=,app=,client= LOG: server process (PID 5812) exited with exit code 1

2017-09-14 00:39:16 ICT [1617]: [13585-1] user=,db=,app=,client= LOG: terminating any other active server processes

2017-09-14 00:39:16 ICT [5782]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5782]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

2017-09-14 00:39:16 ICT [5782]: [5-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 HINT: In a moment you should be able to reconnect to the database and repeat your command.

2017-09-14 00:39:16 ICT [5783]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5783]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

2017-09-14 00:39:16 ICT [5783]: [5-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 HINT: In a moment you should be able to reconnect to the database and repeat your command.

2017-09-14 00:39:16 ICT [5779]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5779]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

2017-09-14 00:39:16 ICT [5779]: [5-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 HINT: In a moment you should be able to reconnect to the database and repeat your command.

2017-09-14 00:39:16 ICT [5780]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5780]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

2017-09-14 00:39:16 ICT [5780]: [5-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 HINT: In a moment you should be able to reconnect to the database and repeat your command.

2017-09-14 00:39:16 ICT [5781]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5781]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

2017-09-14 00:39:16 ICT [5781]: [5-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 HINT: In a moment you should be able to reconnect to the database and repeat your command.

2017-09-14 00:39:16 ICT [5777]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5777]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

2017-09-14 00:39:16 ICT [5777]: [5-1] user=raref,db=radb1,app=[unknown],client=10.68.128.1 HINT: In a moment you should be able to reconnect to the database and repeat your command.

2017-09-14 00:39:16 ICT [5778]: [3-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 WARNING: terminating connection because of crash of another server process

2017-09-14 00:39:16 ICT [5778]: [4-1] user=raref,db=radb1,app=[unknown],client=10.68.128.7 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

Regards,

Saeed Ahmed

Journyx, Inc.
7600 Burnet Road #300
Austin, TX 78757
www.journyx.com

p 512.834.8888
f 512-834-8858

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