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On Wed, 11 Sep 2013, Anand Kumria wrote:

Sep 10 21:32:06 mail1 dovecot: imap(user1@example1.com): Warning: read(/var/run/dovecot/dict): dict lookup took 20 seconds Sep 10 21:32:11 mail1 dovecot: imap(user2@example2.com): Warning: read(/var/run/dovecot/dict): dict lookup took 25 seconds Sep 10 21:32:16 mail1 dovecot: imap(user3@example3.com): Warning: read(/var/run/dovecot/dict): dict lookup took 30 seconds Sep 10 21:32:21 mail1 dovecot: imap(user3@example3.com): Error: read(/var/run/dovecot/dict) failed: Timeout after 30 seconds Sep 10 21:32:21 mail1 dovecot: imap(user1@example1.com): Warning: read(/var/run/dovecot/dict): dict lookup took 25 seconds Sep 10 21:32:21 mail1 dovecot: imap(user4@example2.com): Warning: read(/var/run/dovecot/dict): dict lookup took 24 seconds Sep 10 21:32:26 mail1 dovecot: imap(user5@example2.com): Warning: read(/var/run/dovecot/dict): dict lookup took 29 seconds

What is the best way to look into making dict lookups faster?

In my case the dict is use for user / domain quotas and is looked up via Postgres (on another host). Is there further logging I can enable to see where the problem is?

There is a timeout, the server did not send the reply in less than 32s. You have to look into client -> network -> server -> postgres -> network

• -> client chain. Maybe network problems, postgres server overload, bad SQL queries, ... .

Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)

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