Re: Problems with load balancing cluster on GFS

2008-06-06 Thread John Madden
> > Current size of my Imap Server is 2500 users and currently 250 GByte of > > Mailboxes used (growing and growing). > Well, we will be talking about something in the range of above 50k > mailboxes, so a single machine is just out of question. And some sort > of standby will be needed. I didn't d

Re: Problems with load balancing cluster on GFS

2008-06-06 Thread Jens Hoffrichter
Hallo Klaus, 2008/6/6 Klaus Steinberger <[EMAIL PROTECTED]>: >> I'm seeing some weird behaviour with the pop3 daemon on a GFS HA >> cluster with load balancing. > > I would not advise running cyrus-imapd on top of GFS. GFS is even with the > best tuning possible very slow regarding small files (t

Re: Problems with load balancing cluster on GFS

2008-06-06 Thread Jens Hoffrichter
Hello, 2008/6/6 Jorey Bump <[EMAIL PROTECTED]>: > Yeah, it shouldn't lock with urandom. You might want to play around with > poptimeout and popminpoll, to see if that has any effect on your load > balancing test. Is jakarta-jmeter distributing these logins among enough > different users to simula

Re: Problems with load balancing cluster on GFS

2008-06-06 Thread Klaus Steinberger
I'm seeing some weird behaviour with the pop3 daemon on a GFS HA cluster with load balancing. I would not advise running cyrus-imapd on top of GFS. GFS is even with the best tuning possible very slow regarding small files (the typical load type of a cyrus-imapd). GFS runs into heavy lockin

Re: Problems with load balancing cluster on GFS

2008-06-06 Thread Jorey Bump
Jens Hoffrichter wrote, at 06/06/2008 09:46 AM: > But it doesn't seem to be related to entropy. Though on one of the > nodes entropy is usually quite low (between 100 and 300), it never > drops below the 100 mark, and when running a load test, that node and > another failed, and on the one failing

Re: Problems with load balancing cluster on GFS

2008-06-06 Thread Jens Hoffrichter
Hello Jorey 2008/6/5 Jorey Bump <[EMAIL PROTECTED]>: >> At first I thought that this was a problem related to entropy, but it >> even persisted after I turned off "allowapop", and unconfigured >> everything relating to TLS (as SSL/TLS will be handled completely by >> the perdition, we don't need

Re: Problems with load balancing cluster on GFS

2008-06-05 Thread Jorey Bump
Jens Hoffrichter wrote, at 06/05/2008 04:03 PM: > At first I thought that this was a problem related to entropy, but it > even persisted after I turned off "allowapop", and unconfigured > everything relating to TLS (as SSL/TLS will be handled completely by > the perdition, we don't need it) To ru