Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Michael Grimm
On 26.08.2013, at 22:20, Michael Grimm wrote: > Three mdbox files became deleted and copied to w ones. s/to w ones/to new ones/ Sorry.

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Michael Grimm
On 26.08.2013, at 21:59, Javier de Miguel Rodríguez wrote: > If you have hundreds of messages in a mdbox and you doveadm purge one of > them, the full .m file must be copied in the incremental / diferential > backup. Good point! I won't suffer from that, but those with thousands of users will

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Javier de Miguel Rodríguez
Another intesting thing for this thread: if you set a very high value for mdbox rotate settings, your incremental backups will be awful. If you have hundreds of messages in a mdbox and you doveadm purge one of them, the full .m file must be copied in the incremental / diferential backup. I use

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Jan-Frode Myklebust
On Mon, Aug 26, 2013 at 03:31:20PM -0400, Charles Marcus wrote: > >On 2013-08-26 2:58 PM, Michael Grimm wrote: > >>As a very rough estimate I do estimate a 5% waste of space > >>regarding deleted messages. But, my handful users are very > >>disciplined in purging their deleted messages on a regula

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Michael Grimm
On 26.08.2013, at 21:23, Charles Marcus wrote: > On 2013-08-26 2:58 PM, Michael Grimm wrote: >> As a very rough estimate I do estimate a 5% waste of space regarding deleted >> messages. But, my handful users are very disciplined in purging their >> deleted messages on a regular basis (I told t

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Charles Marcus
On 2013-08-26 3:23 PM, Charles Marcus wrote: On 2013-08-26 2:58 PM, Michael Grimm wrote: As a very rough estimate I do estimate a 5% waste of space regarding deleted messages. But, my handful users are very disciplined in purging their deleted messages on a regular basis (I told them to do),

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Charles Marcus
On 2013-08-26 2:58 PM, Michael Grimm wrote: As a very rough estimate I do estimate a 5% waste of space regarding deleted messages. But, my handful users are very disciplined in purging their deleted messages on a regular basis (I told them to do), and thus my regular "doveadm purge -A" runs wi

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Charles Marcus
On 2013-08-26 3:05 PM, Michael Grimm wrote: On 26.08.2013, at 20:35, Charles Marcus wrote: On 2013-08-24 4:47 AM, Michael Grimm wrote: Don't ask me why I did chose 100m, I cannot remember;-) Ok, if one of such mdbox files will become corrupt, I will loose a lot of mail, but on the other h

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Michael Grimm
On 26.08.2013, at 20:35, Charles Marcus wrote: > On 2013-08-24 4:47 AM, Michael Grimm wrote: >> Don't ask me why I did chose 100m, I cannot remember;-) Ok, if one of such >> mdbox files will become corrupt, I will loose a lot of mail, but on the >> other hand I am running two dovecot servers

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Michael Grimm
On 25.08.2013, at 15:37, Jan-Frode Myklebust wrote: > On Sat, Aug 24, 2013 at 10:47:56AM +0200, Michael Grimm wrote: >> I am running "mdbox_rotate_size = 100m" for approx. a year now on >> a small server (a handful of users, only). All mailboxes are around >> 1G each with a lot of attachments. I

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-26 Thread Charles Marcus
On 2013-08-24 4:47 AM, Michael Grimm wrote: Don't ask me why I did chose 100m, I cannot remember;-) Ok, if one of such mdbox files will become corrupt, I will loose a lot of mail, but on the other hand I am running two dovecot servers in parallel (replicator/dsync) and I do take hourly snaps

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-25 Thread Jan-Frode Myklebust
On Sat, Aug 24, 2013 at 10:47:56AM +0200, Michael Grimm wrote: > > I am running "mdbox_rotate_size = 100m" for approx. a year now on > a small server (a handful of users, only). All mailboxes are around > 1G each with a lot of attachments. I never had an issue so far. How much space are your mdbo

Re: [Dovecot] mdbox - healthy rotation size vs default

2013-08-24 Thread Michael Grimm
On 23.08.2013, at 14:17, Charles Marcus wrote: > On 2013-08-22 9:57 PM, Stan Hoeppner wrote: >> I'd recommend mdbox as well, with a healthy rotation size. The larger >> files won't increase IMAP performance substantially but they can make >> backup significantly quicker. > > I'm considering mi

Re: [Dovecot] mdbox - healthy rotation size vs default - WAS Re: Dovecot tuning for GFS2

2013-08-23 Thread Stan Hoeppner
On 8/23/2013 7:17 AM, Charles Marcus wrote: > On 2013-08-22 9:57 PM, Stan Hoeppner wrote: >> On 8/21/2013 4:07 PM, Jan-Frode Myklebust wrote: >> >>> I would strongly suggest using mdbox instead. AFAIK clusterfs' aren't >> I'd recommend mdbox as well, with a healthy rotation size. The larger >> fi

[Dovecot] mdbox - healthy rotation size vs default - WAS Re: Dovecot tuning for GFS2

2013-08-23 Thread Charles Marcus
On 2013-08-22 9:57 PM, Stan Hoeppner wrote: On 8/21/2013 4:07 PM, Jan-Frode Myklebust wrote: I would strongly suggest using mdbox instead. AFAIK clusterfs' aren't I'd recommend mdbox as well, with a healthy rotation size. The larger files won't increase IMAP performance substantially but the