What messages did you get in the Postgresql logs?
What other parameters have changed? From: pgsql-performance-ow...@postgresql.org [mailto:pgsql-performance-ow...@postgresql.org] On Behalf Of Qiang Wang Sent: 29 April 2011 08:13 To: pgsql-performance@postgresql.org Subject: {Spam} [PERFORM] Will shared_buffers crash a server Hei: We have PostgreSQL 8.3 running on Debian Linux server. We built an applicantion using PHP programming language and Postgres database. There are appoximatly 150 users using the software constantly. We had some performance degration before and after some studies we figured out we will need to tune PostgreSQL configurations. We have 10GB memory and we tuned PostgreSQL as follow: - max_connection = 100 - effective_cache_size = 5GB - shared_buffer = 2GB - wal_buffer = 30MB - work_mem = 50MB However we suffered 2 times server crashes after tunning the configuration. Does anyone have any idea how this can happen? BR Kevin Wang ___________________________________________________ This email is intended for the named recipient. The information contained in it is confidential. You should not copy it for any purposes, nor disclose its contents to any other party. If you received this email in error, please notify the sender immediately via email, and delete it from your computer. Any views or opinions presented are solely those of the author and do not necessarily represent those of the company. PCI Compliancy: Please note, we do not send or wish to receive banking, credit or debit card information by email or any other form of communication. Please try our new on-line ordering system at http://www.cromwell.co.uk/ice Cromwell Tools Limited, PO Box 14, 65 Chartwell Drive Wigston, Leicester LE18 1AT. Tel 0116 2888000 Registered in England and Wales, Reg No 00986161 VAT GB 115 5713 87 900 __________________________________________________
