[Dovecot] Local node indexes in a cluster backend with GFS2

[Timo Sirainen]

You could try, but mmap_disable=yes might be faster (or might not).

On 15.11.2010, at 20.30, Aliet Santiesteban Sifontes wrote:

> Read this in GFS2 docs:
> mmap/splice support for journaled files (enabled by using the same on disk
> format as for regular files)
> 
> ...
> 2010/11/15 Aliet Santiesteban Sifontes <alietsantiesteban at gmail.com>
> 
>> Should I set mmap_disable = yes when storing indexes in a GFS2 shared
>> filesystem??
>> 
>> 2010/11/15 Aliet Santiesteban Sifontes <alietsantiesteban at gmail.com>
>> 
>> Ok, I will create a LUN also as a shared clustered storage for indexes, any
>>> consideration to have into account when the indexes are shared by many
>>> nodes...
>>> thank you all...
>>> 
>>> 2010/11/15 Timo Sirainen <tss at iki.fi>
>>> 
>>> On 15.11.2010, at 6.44, Aliet Santiesteban Sifontes wrote:
>>>> 
>>>>> mail_location =
>>>>> sdbox:/var/vmail/%d/%3n/%n/sdbox:INDEX=/var/indexes/%d/%3n/%n
>>>>> 
>>>>> /var/vmail is shared clustered filesystem with GFS2 shared by node1 and
>>>>> node2
>>>>> 
>>>>> /var/indexes is a local filesystem at the node, so each node has his
>>>> own
>>>>> /var/indexes stuff on ext3 and raid1 for improving performance, I mean
>>>> each
>>>>> node a different /var/indexes of its own.
>>>> 
>>>> This is a bad idea. With dbox the message flags are only stored in index
>>>> files, so if you lose indexes you lose all message flags. Users won't be
>>>> happy.
>>>> 
>>> 
>>> 
>>