Greetings,
We have a problem with our WordPress 1.2.1 installation. We are planning an upgrade, but haven't made it yet.
Over the past few of weeks, we've been noticing slow admin functionality: every admin submission took 22+ seconds (login, new blog, add user, etc.). The front-end has been working quickly, so actually 'fixing' the problem hasn't been of highest priority. We have a DBA who tells me there doesn't appear to be anything wrong with our wpmu database (except for the fact that we've got ~200 blogs, each with ~10 tables).
Our DBA has run 'repair' table many times, but it always indicates status OK. He's watched the DB during ADMIN functions, and the select or update call comes through and is completed in under 1 second. Nevertheless the action still takes 22+ seconds to complete.
Yesterday, the problem has escalated. At present we cannot do *any* admin function. In fact, we cannot even login. When I go to /wp-admin/ WPMU no longer recognizes my 'logged in cookie' so it re-directs me to /wp-login.php. When I enter my LOGIN & PASSWORD, WPMU waits for 40-70 seconds and finally Firefox asks where I want to save the file 'wp-login.php'.
Our problem appears to be similar to this one (related to eAccelerator, although I don't believe we have it installed):
http://wordpress.org/support/topic/98966?replies=6#post-494379
I don't believe any binaries or resources (httpd, mysql, php, etc.) have been upgraded recently.
[clay@widget1 ~]$ /web/apache/bin/httpd -v
Server version: Apache/1.3.37 (Unix)
Server built: Dec 13 2006 15:06:38
[clay@widget1 ~]$ php -v
PHP 5.2.0 (cli) (built: Aug 6 2007 17:21:41)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2006 Zend Technologies
[clay@widget1 ~]$ mysql --version
mysql Ver 14.12 Distrib 5.0.27, for pc-solaris2.10 (i386) using EditLine wrapper
[clay@widget1 ~]$ uname -a
SunOS widget1.domain.com 5.10 Generic_118855-19 i86pc i386 i86pc
Also, 'widgets1' is a part of a cluster of 4 computers plus one beefy db server.
Any ideas?
Thanks!
Clay