mdbox + director + nfs

[Raymond Sellars]

Hi Matt

We've been running this configuration for the past couple of years.  Not noticed any locking issues. As I understand it that's the objective of using Director.

As Aki notes make sure you have the appropriate NFS settings. 

Other lessons we encountered. 

Important to ensure NFS is NTP sync'd and aligned with your hosts, we hit some issues with file timestamps leading to problems.

Replication, e.g. for perhaps a backup or DR site. Seems to work but we've had the odd occasion of the indexes drifting. Never tracked the reason down and believe its unrelated to the NFS. Just something to monitor.

Regards
Raymond
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Message: 5
Date: Tue, 17 Oct 2017 08:50:18 +0300
From: Aki Tuomi <aki.tuomi at dovecot.fi>
To: dovecot at dovecot.org
Subject: Re: mdbox + director + nfs
Message-ID: <70b54e75-14fe-2caa-eccb-1ffc05c2a1e5 at dovecot.fi>
Content-Type: text/plain; charset=utf-8

NFS with mdbox should work just fine, locking should not be an issue, but please read https://wiki.dovecot.org/NFS

Aki


On 17.10.2017 02:32, Matt Bryant wrote:
> Anyone had any experience they can share using a director setup with 
> NFS and using the mdbox format instead of maildir. Is locking an issue 
> on index files ??
>
> rgds
>
> Matt