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

Aliet Santiesteban Sifontes
2010-11-15T20:17:40Z

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.
>>
>
>