<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>I want to check the memory settings for Drupal too. I think I looked to see what Crawford chose, but I'll make sure.<br><br>----- Original Message -----<br>From: "David L. Anselmi" <anselmi@anselmi.us><br>To: "CLUE's mailing list" <clue@cluedenver.org><br>Sent: Tuesday, May 24, 2011 8:26:54 AM<br>Subject: Re: [clue] website problems<br><br>dennisjperkins@comcast.net wrote:<br>> You may have noticed that we are having troubles with the server after switching to the new<br>> Drupal site. We are trying to resolve them but we plan to switch back to the old site temporarily<br>> until after the Installfest because it is more important that people can get information about<br>> the installfest this Saturday.<br><br>The server is running again with the old site. Here are the changes made, we should probably leave <br>them until after Saturday:<br><br>- Turned off hyperic (a monitorning daemon we weren't using anymore).<br><br>- Turned off mysqld (just in case).<br><br>- Pointed apache at the old web pages.<br><br>In /etc/httpd there's an old_conf.d directory that contains the multiple site setup we were using a <br>few weeks ago.<br><br>In conf.d there are 2 config files, one for php and one for drupal, with a link pointing to the php one.<br><br>If you haven't heard the issue has been memory exhaustion that causes the server to stop responding <br>(though it stays busy killing processes to free up memory--the oom killer).<br><br>When it's been running httpd has been running many large processes. We may not have the limits set <br>low enough.<br><br>This morning there were many postfix processes running, although they were small. Those limits <br>might be set too high too.<br><br>mysql uses quite a bit of memory but it hasn't been larger than httpd.<br><br>There are many drupal error messages in /var/log/messages, including some about SQL errors (?!). <br>There are also http 500 errors related to the calendar in the apache logs.<br><br>Before we turn on drupal again I recommend having a plan to profile our memory usage. What does <br>drupal's usage look like under load? Are httpd or postfix getting a surge of requests and using up <br>the remaining memory?<br><br>We should also have a plan to monitor the logs closely and fix any configuration issues (or buggy <br>modules) that show up. And drupal probably increases our vulnerabilities so we should plan to keep <br>tabs on its security announcements and keep it patched.<br><br>Dave<br>_______________________________________________<br>clue mailing list<br>clue@cluedenver.org<br>http://cluedenver.org/mailman/listinfo/clue<br></div></body></html>