[Dovecot] Dovecot,nfs or memory indexing

[Sebastian Tymków]

Hi,

Thanks for reply.

2008/8/4 Timo Sirainen <tss at iki.fi>

> On Aug 4, 2008, at 9:42 AM, Sebastian Tymków wrote:
>
>  Hi,
>>
>> I wonder if it's normal behaviour that indexes created in memory have long
>> creation time.
>>
>
> No, but the problem has more to do with caching. If you use a client that
> fetches the same data often (such as message headers/sizes) then Dovecot
> will do the same work for each request. In that case in-memory indexes
> perform poorly. This is more of a problem with webmail clients and less of a
> problem with Outlook/Thunderbird.


And what about if I want use both  solutions ,
memory indexing for POP3 and hd-indexing for webmail? Are there any
disadventages ?

>
> If you're using POP3 that also performs poorly without indexes with v1.0.
> v1.1 makes it better.
>
>  Other problem is that indexes created on nfs sometimes get crushed and I
>> need to delete indexes in case of
>> fetching mails ( I see mails on hd but when telnet on host and make stat I
>> don't see any).
>>
>
> So Dovecot says there are no mails while there are in fact?


Yes. But when I delete indexes and they are recreated everything works fine.

Is it possible that something goes wrong on NFS connection ?


>  Does version 1.1.x correct this errors ?
>>
>
> v1.1 makes NFS work a lot better, so it's highly recommended.


Does it stable version ? Can I use it on production without any problems ?


>
>  And what is better to use : nfs or
>> memory indexing ?
>> Can someone point me adventages and disadventages of using both solutions?
>>
>
> Have you read http://wiki.dovecot.org/NFS ?


Yes.



Best regards,

Sebastian