Hi guys, Hope this is the right list, if not please correct me. Currently I'm running a Zope cluster which consists of 3 servers, one with squid and the other 2, which have quad core processors and 4GB RAM,have 4 zeo instances running over DRBD and each Zope instance has 4 clients (2 on each box). The problem started when I ran Squid on the same box as the Zeo's (the Zeo's live on one box, but migrate when one of the servers fail) and for some reason Squid ended up sending requests on the box it was running on and the other box remained idle. My first move was to set weights to try and get Squid to see the servers as equal, but that didn't help either. Next I noticed the site would hang as Squid was sending requests to a client that was either unreachable due to high load and wasn't handling HTTP requests, but it seemed like ICP was still answering which didn't help the situation. I removed ICP and the problem still persisted, weights set to 1 on the box running Squid and the Zeo's and 100 on the other box. The next move was to put Squid on its own box, but I'm still experiencing problems where Squid sends requests to only one box and eventually one of the clients becomes unresponsive, but ICP still answers. My next step was to put Pound behind squid and let Squid forward all requests to Pound which in turn did the load balancing, but this morning I noticed 500 errors coming from Pound. 2 of the instances, one on each box, kept timing out. I restarted all 4 clients in question, reloaded Squid and restarted Pound, but Pound kept timing out when sending requests to 2 of the instances. The strange thing is that Pound was still able to forward requests to 4 of the other clients serving another instance, but this one was under less load.
Any advice? Thanks, Gareth _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )