[Dovecot] Errors after enable vnd.dovecot.duplicate

[Timo Sirainen]

On 20.2.2013, at 3.58, Daniel Parthey <daniel.parthey at informatik.tu-chemnitz.de> wrote:

> Since I'm using the vnd.dovecot.duplicate extension in my sieve script,
> we got the same error exactly three times, but only on Feb 11.
> We are using LMTP on a 4 node director+mailbox dual-instance setup with NFSv4.
> 
> Feb 11 11:10:45 10.129.3.233 dovecot: lmtp(23044, dparthey at example.org): Error: file_dotlock_create(/mail/dovecot/example.org/dparthey/.dovecot.lda-dupes) failed: Resource temporarily unavailable
> Feb 11 11:10:50 10.129.3.233 dovecot: lmtp(23139, dparthey at example.org): Error: file_dotlock_create(/mail/dovecot/example.org/dparthey/.dovecot.lda-dupes) failed: Resource temporarily unavailable
> Feb 11 11:10:52 10.129.3.233 dovecot: lmtp(23207, dparthey at example.org): Error: file_dotlock_create(/mail/dovecot/example.org/dparthey/.dovecot.lda-dupes) failed: Resource temporarily unavailable
> 
> No further errors on dovecot-error.log.
> The error did not reoccur yet and seems to be very rare.

This error happens when the dupes file has been locked for 10 seconds. I guess that user was delivered multiple mails at the same time and the delivery took a long time.. I made the error message somewhat better anyway:
http://hg.dovecot.org/dovecot-2.1/rev/81ea622b6394