RE: 3867653, EMM1 cluster issue on 23rd May--core generated --design feedback

From: M Tarkeshwar Rao <m(dot)tarkeshwar(dot)rao(at)ericsson(dot)com>
To: "'pgsql-general(at)postgresql(dot)org'" <pgsql-general(at)postgresql(dot)org>
Cc: Piyush Anand <piyush(dot)anand(at)ericsson(dot)com>, Mohammad Rizwan Ahmad <mohammad(dot)rizwan(dot)ahmad(at)ericsson(dot)com>
Subject: RE: 3867653, EMM1 cluster issue on 23rd May--core generated --design feedback
Date: 2021-07-12 15:06:46
Message-ID: AM8PR07MB82292FADBB8EF0C791BF447EAE159@AM8PR07MB8229.eurprd07.prod.outlook.com
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Hi All,

We are getting following core with following use case:

Case: We made max_connections as 15 and 10 different processes opening 15 connections with server. It is running fine. But after few hours it giving following
core. When we increase the max_connections then core come again but it take more hours to come.

Program terminated with signal 11, Segmentation fault.

#0 0x00007f712e7a3bf0 in pqRowProcessor () from /tmp/3pp/postgres//lib/libpq.so.5

Missing separate debuginfos, use: debuginfo-install CXC1741717-R2N-EM20_ICP2001.x86_64

(gdb)

(gdb) bt

#0 0x00007f712e7a3bf0 in pqRowProcessor () from /3pp/postgres//lib/libpq.so.5

#1 0x00007f712e7adef2 in pqParseInput3 () from /3pp/postgres//lib/libpq.so.5

#2 0x00007f712e7a4e78 in PQgetResult () from /3pp/postgres//lib/libpq.so.5

#3 0x00007f712e7a50af in PQexecStart () from /3pp/postgres//lib/libpq.so.5

#4 0x00007f712e7a5261 in PQexec () from /3pp/postgres//lib/libpq.so.5

#5 0x00007f712ea08add in PostGresSqlExecutor::executeSql (this=0x14c50090, aSqlStatement=0x1341fee8 "SELECT * from tab_1",

thePrefetchCount=<optimized out>) at PostGresSqlExecutor.cc:107

Regards
Tarkeshwar

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