Dear all, I have been using Postgres but I am not an expert on the subject.
I would be very grateful if someone could point to the right direction with regards this problem. We have a web application written in JAVA, using jaboss as a servlet. There are 100 connections open to the database server at any given time, apparently using hibernate. We are using Postgres 8.2.4 compiled The database size is 155GB We have 8GB of RAM 300GB Hard disk Raid1 Everything is within a single Volume Today the load average was as high as 15 Top result: Tasks: 169 total, 30 running, 139 sleeping, 0 stopped, 0 zombie Cpu(s): 69.6% us, 5.9% sy, 0.0% ni, 0.0% id, 24.3% wa, 0.2% hi, 0.0% si Mem: 8251404k total, 8228428k used, 22976k free, 16296k buffers Swap: 1052248k total, 47176k used, 1005072k free, 6664308k cached I am quite sure: 1 - we do not have enough memory 2 - our disk and RAID array setup is not good enough 3 - Postgres is not setup correctly and uses an older version 4 - It is using Slony and replication which does not work. I would like if anyone could help with the following: 1 - Ways of proving my thoughts 2 - Gather data evidence to prove I don't have slow query check enabled, will do after Christmas, but how can I use it to show things are not good? If anyone could help me it would be very much appreciated. If you need more info or details, I am very happy to give more. Thank you very much Best regards Renato Oliveira Renato Oliveira e-mail: renato.olive...@grant.co.uk Tel: +44 (0)1763 260811 Fax: +44 (0)1763 262410 www.grant.co.uk<http://www.grant.co.uk/> Grant Instruments (Cambridge) Ltd Company registered in England, registration number 658133 Registered office address: 29 Station Road, Shepreth, CAMBS SG8 6GB UK P Please consider the environment before printing this email CONFIDENTIALITY: The information in this e-mail and any attachments is confidential. It is intended only for the named recipients(s). If you are not the named recipient please notify the sender immediately and do not disclose the contents to another person or take copies. VIRUSES: The contents of this e-mail or attachment(s) may contain viruses which could damage your own computer system. Whilst Grant Instruments (Cambridge) Ltd has taken every reasonable precaution to minimise this risk, we cannot accept liability for any damage which you sustain as a result of software viruses. You should therefore carry out your own virus checks before opening the attachment(s). OpenXML: For information about the OpenXML file format in use within Grant Instruments please visit our website<http://www.grant.co.uk/Support/openxml.html>
