Re: [Dovecot] Load spikes on NFS server, multiple index updaters.

2009-08-25 Thread Jorgen Lundman
Yeah, zfs quotas gets rid of this problem. Maybe I should also start recommending people to use dict quota with v1.2.. Hmm. Although I think there was also some rare issue with it that I should fix. Ah great. I was just about to move the customer's directory to the test servers and try with,

Re: [Dovecot] Load spikes on NFS server, multiple index updaters.

2009-08-25 Thread Timo Sirainen
On Aug 25, 2009, at 11:39 PM, Jorgen Lundman wrote: Do you need Maildir++ quota at all? With v1.2 you could use dict quota with file backend. It'll use dovecot.index.cache when recalculating quota, although it doesn't do that unless the quota is lost for some reason (so about never). We o

Re: [Dovecot] Load spikes on NFS server, multiple index updaters.

2009-08-25 Thread Jorgen Lundman
Timo Sirainen wrote: Are these old files, or why don't they contain the ,S=1234 in filename? That would help a lot when recaculating Maildir++ quota. Ah legacy reasons :) We used to use UFS (with quotas) inside zvol on the zfs server. But this panics, and has performance issues. We changed

Re: [Dovecot] Load spikes on NFS server, multiple index updaters.

2009-08-25 Thread Timo Sirainen
On Aug 25, 2009, at 10:06 PM, Jorgen Lundman wrote: 26099: stat64("/export/censored/mail/cur/ 1223013930.V4700010I69f93eM483098.vmx02.unix:2,S", 0x08047930) = 0 Are these old files, or why don't they contain the ,S=1234 in filename? That would help a lot when recaculating Maildir++ quota.

[Dovecot] Load spikes on NFS server, multiple index updaters.

2009-08-25 Thread Jorgen Lundman
We are occasionally experiencing trouble where the NFS server's load will shoot over 60+. (Normal of sub 1.0). I have been hunting this for a while, and I believe it comes down to "deliver". System setup: NFS servers: x4540 Solaris 10 x64 ZFS over NFS. NFS clients: Solaris 10 x64 postfix-2