First let me apologize if this is not the appropriate forum for my question. I thought it would be because the issue has to do with apache/modperl/mysql performance.
We have recently added a site to our server which hosts 30 other sites. The new site uses modperl & MySQL. After adding the new site, the server we were on (shared server at a national server farm) had major resource problems (too many connections & load avg up to 30 not infrequently) & eventually crashed. We moved to a new dedicated server which gave us more resources, but we're still experiencing intermittent sluggishness - load avg approaching 10 - and this is before this new site really becomes active. Maybe 20 logins per day currently - in 10 days we'll have ~ 4000. I've made changes to Apache config, following suggestions in the mod_perl performance tuning docs: MinSpareServers 5 MaxSpareServers 10 MaxClients=75 MaxRequestsPerChild 500 I've made efforts to optimize the database & queries, and have made changes to the my.cnf file following suggestions in the High Performance MySQL O'Reilly book & a couple of postings that seemed to have some similarity to our situation: set-variable = key_buffer_size=128M set-variable = table_cache=1024 set-variable = join_buffer=1M set-variable = sort_buffer=2M set-variable = record_buffer=1M set-variable = wait_timeout=20 set-variable = thread_cache=8 But before I go any further with testing & modifying configurations & perhaps code, I'd like to have some good idea that the server we currently are running on should be able to handle this new site & the 30 others - 2 running WebGUI, 12 use MySQL (4-5 fairly heavily), 4 modperl. The server is a Pentium 3 800 MHz with 768M RAM (of which we can use ~640, according to the server sysadmin) It's running Ensim 4.0 with Fedora Core 1 with Embedded Perl version v5.8.1 for Apache/1.3.31 (Unix) (Red-Hat/Linux) mod_perl/1.29 PHP/4.3.8 FrontPage/5.0.2.2635 mod_ssl/2.8.18 OpenSSL/0.9.7a MySQL version 3.23.58 Any constructive suggestions are very welcome. Thanks. Sys
