Re: Postgresql JDBC process consumes more memory with partition tables update delete

 

Please check attached.  Removed some dbname and tablename , the interesting thing is we only see this issue by JDBC driver client, for psql client , only 25MB memory and similar SQL plan used.

 

Thanks,

James

From: Vladimir Sitnikov <sitnikov.vladimir@gmail.com>
Sent: Thursday, September 8, 2022 3:05 PM
To: James Pang (chaolpan) <chaolpan@cisco.com>
Cc: pgsql-jdbc@lists.postgresql.org
Subject: Re: Postgresql JDBC process consumes more memory with partition tables update delete

 

> > Yesterday, when workload test, a lot of Postgresql JDBC connections
> > use 150-160MB memory , so we got ERROR: out of memory

Would you please share a reproducer? (e.g. DDL for the table, test code)

 

Have you tried capturing memory context information for the backend that consumes memory?

https://wiki.postgresql.org/wiki/Developer_FAQ#Examining_backend_memory_use

Vladimir