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On 2/1/06, Marc Zucchelli <marcz908@yahoo.com> wrote: > I have a customer on a dedicated server with 3 very > active websites. Apparently the server seems to be > hanging from time to time, and he usually just calls > aplus.net to have them reboot it. Could you define "hanging"? Does just the webserver hang? Does sshd hang to? (It's unclear whether you logged in on the console or not) > Last time he did > was Sunday. I'm trying to figure out possible causes. > Last night I logged onto the server and to start > things off, I just ran "top" The load avg was 0.13, > he had about 21mb's of ram free and almost all of his > swap was free. I know his server gets much busier on > the weekends when he runs his sales, so I dont know. > > I left top running all night, and I took a look at it > again just now, it said the CPU time for httpd > (running as root) was 5:47. For a second I thought of > the possibility of a php script hanging because 5:47 > seems like a long time. But I remembered that its > running as the root user which spawn other processes > and doesnt serve web pages, so 5:47 might be normal > for about 3 days. Why is Apache running as root? It should be running as a seperate user for the usual security reasons. As for the CPU time, that could be normal if there are a lot of CPU-intensive PHP scripts. (Mis-configured Drupal installations come to mind ;-) A few other things I can think of: - Did you check Apache logs and system logs? Might there be issues with the disk? - Have you run memtest on the machine, just in case RAM is flaky? - Have you tried just restarting Apache instead of the system to see what happens? -- Doug ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug