DBERROR db4: Lock table is out of available locker entries

Dudi Finkel dudi.finkel at atrinet.com
Thu Jul 30 17:16:55 EDT 2015


Thank you for the reply.

Sometimes I see in maillog the following errors:
imap[31724]: SQUAT failed to open index file
imap[31724]: SQUAT failed
And also:
master[24699]: process 19488 exited, signaled to death by 11
master[24699]: service imap pid 19488 in BUSY state: terminated abnormally

Do you think that these errors are related to the lockers problem?

What will happen to the current mailboxes if I use skiplist instead of berkeley_db (for annotation_db and mboxlist_db)?

In case I continue to use berkelery_db, do you think that upgrade to db4 should help resolving the locker problem?

Thank you,

-----Original Message-----
From: Sebastian Hagedorn [mailto:Hagedorn at uni-koeln.de] 
Sent: Thursday, July 30, 2015 11:56 AM
To: Dudi Finkel
Cc: info-cyrus at lists.andrew.cmu.edu
Subject: Re: DBERROR db4: Lock table is out of available locker entries


--On 30. Juli 2015 01:17:29 +0300 Dudi Finkel <dudi.finkel at atrinet.com>

> db4-4.3.29
> The number of lockers was growing for more than a week
> Why this is happening?
> How can I fix it?
> How can I reproduce it?

general consensus is to just get rid of BerkeleyDB. You can use skiplist instead. Your version of Cyrus is also very outdated. You should seriously consider an upgrade.
    .:.Sebastian Hagedorn - Weyertal 121 (Gebäude 133), Zimmer 2.02.:.
                 .:.Regionales Rechenzentrum (RRZK).:.
   .:.Universität zu Köln / Cologne University - ✆ +49-221-470-89578.:.

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