Re: Cyrus-imapd memory tuning

2014-03-12 Thread Marco
On Mon, Mar 10, 2014, at 07:49 PM, Marco wrote: With 8GB RAM, I would recommend you increase that... [...] As an interesting datapoint, the big ones cost about US$20k fully stocked, including 40Tb of RAID6 storage for email, plus 6Tb of RAID1 for search indexes and 800Gb of RAID1 SSD

Re: Cyrus-imapd memory tuning

2014-03-12 Thread Bron Gondwana
On Wed, Mar 12, 2014, at 08:11 PM, Marco wrote: On Mon, Mar 10, 2014, at 07:49 PM, Marco wrote: With 8GB RAM, I would recommend you increase that... [...] As an interesting datapoint, the big ones cost about US$20k fully stocked, including 40Tb of RAID6 storage for email, plus 6Tb

Re: Cyrus-imapd memory tuning

2014-03-12 Thread David R Bosso
--On March 12, 2014 11:53:03 PM +1100 Bron Gondwana br...@fastmail.fm wrote: Looks like on a medium-loaded server we have about 15,000 connections open at the moment. It's about 40% masters, 40% replicas, 20% unallocated. About disk, what is the high size of a single partition managed by

Re: Ubuntu Server 13.10 | Postfix 2.10.2 | Cyrus 2.4.16

2014-03-12 Thread Andrey ‪
SOLVED in /etc/imapd.conf comment: # The default domain for virtual domain support # If the domain of a user can't be taken from its login and it can't # be determined by doing a reverse lookup on the interface IP, this # domain is used. # defaultdomain: domain.tld Very strange that:

Re: Cyrus-imapd memory tuning

2014-03-12 Thread Bron Gondwana
On Thu, Mar 13, 2014, at 04:18 AM, David R Bosso wrote: Just curious about what filesystem (and any special mount options) you're using these days for large cyrus stores. We've been using ext4 for a while now (we used to use reiser) and have seen performance degradation over time. I've

Re: Cyrus-imapd memory tuning

2014-03-12 Thread Bron Gondwana
On Thu, Mar 13, 2014, at 04:18 AM, David R Bosso wrote: I've been wondering if anyone has any positive experience with using recent XFS. This question comes up every so often. I tried a couple of years back, and the server crashed within 6 hours under the heavy load of copying data in, and