Hi,
Does anyone else here have a Red Hat 9 server running mysql or openldap under heavy load? In the new glibc 2.3.2 architecture with the new threading libraries it runs these under a single process, rather than many processes as in previous releases of Red Hat.
Overall I'm seeing some instability, including tendency to stop (permanently) accepting new connections after being loaded, even when the load drops away, mysql / openldap server process lockups, and some occasions where it appears to run to 100% CPU even when quiet. It happens on 3 separate servers all of which are under fairly peaky heavy load, but isn't apparent on a much more lightly loaded server.
Prior to upgrading to 9 from 7.3 all of these servers were fine (yes I am considering a downgrade).
I notice that Apache and IMAPD, which also are heavily loaded on servers with an identical configuration but run as multiple separate processes per server, don't have the same instability.
It's hard for me to put a finger on what's happening, code- wise, I was just wondering whether anyone else had seen it.
-- Del
-- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
