Re: ZFS doing insane I/O reads

2012-02-27 Thread Pascal Gienger
Le 28/02/2012 07:13, Ram a écrit : > This is a 16GB Ram server running Linux Centos 5.5 64 bit. > There seems to be something definitely wrong .. because all the memory > on the machine is free. > (I dont seem to have fsstat on my server .. I will have to get it > compiled ) ZFS as FUSE? We hav

Re: ZFS doing insane I/O reads

2012-02-27 Thread Ram
On 02/27/2012 04:16 PM, Eric Luyten wrote: > On Mon, February 27, 2012 11:10 am, Ram wrote: >> I just deployed zfs on my newer cyrus servers. >> These servers get less than 2000 mails per hour and around 400 >> concurrent pop/imap connections >> >> >> I have seen that even if there is no incoming p

Re: how to authenticate on localhost without password?

2012-02-27 Thread Dan White
On 02/27/12 10:32 -0600, Dan White wrote: >Another option would be to utilize SASL EXTERNAL authentication to >authenticate your users, locally, based on peercred. Cyrus IMAP does not >currently have support for external auth, but I'm attaching a Linux >specific patch, against cyrus 2.3.12, which w

Re: how to authenticate on localhost without password?

2012-02-27 Thread Dan White
On 02/26/12 12:36 -0500, Brian J. Murrell wrote: Subject might be a bit misleading but here is the problem... I have a cyrus imap server serving a userbase. Of course with any mail system comes the issue of handling spam. My users each have two folders in their account: "Junk" and "Not Junk" w

Re: ZFS doing insane I/O reads

2012-02-27 Thread Eric Luyten
On Mon, February 27, 2012 11:10 am, Ram wrote: > I just deployed zfs on my newer cyrus servers. > These servers get less than 2000 mails per hour and around 400 > concurrent pop/imap connections > > > I have seen that even if there is no incoming pop or imap connection > still there is large amount

ZFS doing insane I/O reads

2012-02-27 Thread Ram
I just deployed zfs on my newer cyrus servers. These servers get less than 2000 mails per hour and around 400 concurrent pop/imap connections I have seen that even if there is no incoming pop or imap connection still there is large amount of READ happenning on the zfs partitions. Is this normal