httpd-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Damian Meyer <>
Subject [users@httpd] Timeouts / responsiveness issues with Apache
Date Fri, 16 Jan 2004 07:36:17 GMT

We have recently migrated from several individual Apache 1.3.x servers 
running around 1000 virtual sites each to a server farm with multiple 
servers (Apache/1.3.29) all capable of running all of the sites (about 
4000 in total).  The server farm is behind a load balancer running 
ldirectord from the LVS project.

The problem we are having is that every so often one of the web servers 
seems to go offline and either become very sluggish with responses or 
even times-out.  If it failed totally, ldirectord would notice and map 
it out, but it doesn't (usually).  After a few minutes of bad 
performance, it usually comes good, but it happens frequently enough to 
one or more of the web servers that it's causes noticeable glitches to 
our clients.

Also, and it may or may not be related, occasionally Apache dies totally 
(ie no live processes) and requires starting again.

Each server has 2GB of RAM.  Websites are a mix of flat HTML through to 
complicated PHP sites using MySQL connections (we've checked the 
database, it doesn't look like this is the problem.)

Does anyone have any idea what could be at issue here?  Does anyone have 
any experience with this sort of large-ish server farm to give us any 
feedback on configuration settings or other tuning parameters?  Any 
decent tuning documents on the web that take into account this type of 

Kind regards
Damian Meyer

The official User-To-User support forum of the Apache HTTP Server Project.
See <URL:> for more info.
To unsubscribe, e-mail:
   "   from the digest:
For additional commands, e-mail:

View raw message