[Dovecot] Fwd: NFS question

Ken A ka at pacific.net
Thu Sep 30 17:36:22 EEST 2010



On 9/30/2010 7:28 AM, Charles Marcus wrote:
> On 2010-09-30 7:38 AM, Cor Bosman wrote:
>> Charles wrote:
>>> Timo, can you at least clarify this - my understanding is that the
>>> problem here is not inherent to dovecot, but to NFS caching, and that
>>> dovecot is no more or less prone to having problems than any other
>>> imap/pop3 server?
>
>> That is correct. Except that many other imap/pop servers do not
>> implement a message index to increase performance. The problem lies
>> in the index, not in the messages themselves.
>
> Right, I knew that, just wasn't clear...
>
>> You can turn off the index completely, and then you'll be just as
>> slow as any other imap server and wont ever see this problem.
>
> But we're talking strictly POP3 here, so indexes aren't useful (and
> therefor can be disabled completely if all you are using dovecot for is
> as a POP3 server) anyway, right?

Just to clarify, we are talking strictly pop3 w/maildir. Indexing is 
quite useful for pop3 w/mbox.

Ken
Pacific.Net



> As for IMAP, I think Timo also made it clear that if you weren't using
> the dovecot LDA+index updating, or if the indexes weren't stored on NFS,
> then IMAP didn't suffer the problem/issue as well... ?
>
> I'm just glad I don't have to use NFS, so I'm asking just for the sake
> of knowing (and in case I ever do need to use NFS)... :)
>

-- 
Ken Anderson
Pacific Internet - http://www.pacific.net


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