Re: [GENERAL] Problems setting shared_buffers to large value

[Joshua D. Drake]

Hello, What operating system? Sincerely, Joshua D. Drake Barry L. Geipel wrote: --> Hi all,   I am running postgres 7.4.2 on a Dual processor Opteron with 16GB of ram. I want to set shared_buffers to a large value, but I am running into startup problems.   I have set my kernel SHMMAX and SHMALL to 12GB.   When I set shared_buffers to a value which puts the total shared memory usage over 1GB, my postgres server fails to start. Unfortunatly, I also cannot seem to get any logfile output out of my system (perhaps another question).   Are there any hardcoded max values for shared_buffers? I noticed in the code that a uint32 is used for the page size which would mean a 4GB max. This is failing at much lower values.   Sorry that I do not have a logfile output. Perhaps someone could help me turn my logfile on. I am passing –l logfile at startup, but my logfile remains empty.   Thanks in advance   Barry ([EMAIL PROTECTED] -- Command Prompt, Inc., home of Mammoth PostgreSQL - S/ODBC and S/JDBC Postgresql support, programming shared hosting and dedicated hosting. +1-503-667-4564 - [EMAIL PROTECTED] - http://www.commandprompt.com PostgreSQL Replicator -- production quality replication for PostgreSQL