Out of curiosity, do you have mod_php active on the server? --Noah
mankoff wrote: > Hi List, > > I'm having some apache problems but starting here because I think it > is Trac related. > > Once or twice a day, for no reason I yet understand, the CPU usage of > the server spikes to 100% and the load goes to 3 or 4. This is a dual > 2.5 GHz OS X box running trac 0.10.4dev and apache 2.0.59. After an > hour or two it returns to normal through no effort on my own. When I > run top I see apache2 using 99% of the CPU (or multiple apache2 > processes fighting it out with 50% each). > > The reason I post to the Trac list is because if I go to our server > http://edgcm.columbia.edu it responds quite fast even when in this > state. Our forums also load quickly. But if I go to > http://dev.edgcm.columbia.edu > where Trac is hosted, the system just hangs. So I think Trac is most > definitely related to this. > > I do not know how to tell what is hanging or why it is causing this > hang. If I watch the logs (access or error) nothing shows up to tell > me what is going on. I cannot create this high CPU usage state, but I > know when it occurs (using rrdtool here: http://edgcm.columbia.edu/stats/) > and can narrow it down to a 5 minute window. If I go to the logs and > check the URLs from that window there is nothing suspicious. If I re- > enter each one manually I cannot get the system to re-enter this > anomalous state. > > Trying to dig a bit further I started running ab (apache benchmark > tool). The server handles 100+ connections without a problem which is > more than we normally get even with a minor slashdotting. > > If I run ab on the Trac vhost rather than the main site, it works 50% > of the time, and then the rest of the time I get a very strange > message: > >> ab -n 10 -c10 -g ab.gnuplot -e ab.csv http://dev.edgcm.columbia.edu/ >> This is ApacheBench, Version 2.0.41-dev <$Revision: 1.121.2.12 $> apache-2.0 >> Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ >> Copyright (c) 2006 The Apache Software Foundation, http://www.apache.org/ >> >> Benchmarking dev.edgcm.columbia.edu (be patient)...apr_poll: The timeout >> specified has expired (70007) >> Total of 8 requests completed >> > > Any help you can provide would be greatly appreciated. > > Thanks, > > -k. > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Trac Users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/trac-users?hl=en -~----------~----~----~----~------~----~------~--~---
