mysql problem

Bron Gondwana brong at
Wed Sep 11 05:43:33 EDT 2013

On Wed, Sep 11, 2013, at 05:46 PM, Rudolf Gabler wrote:
> Hi,
> the cyrus-imapd-2.4.17-caldav-beta6 release shows the following:
> After a fresh start with a mysql database for several purposes 
> duplicate_db: sql
> mboxlist_db: sql
> quota_db: sql
> tlscache_db: sql
> the system is running as expected. After approximately the 10 imaps contact suddenly the following occurs:
> Sep 11 09:43:29 xmailer imaps[8168]: DBERROR: SQL query failed: MySQL server has gone away
> Sep 11 09:43:29 xmailer imaps[8168]: DBERROR: SQL failed SELECT * FROM mailboxes_db WHERE dbkey = 'user…..
> But the local mysql server is o.k. and running. After a restart of cyrus (/etc/init.d/cyrus-imapd restart) everything is working until the next appr. 10 connection times by the user.

Smells like connection handle leakage, or leakage of some other finite resource in the mysql library.

> Any hint what may occur?

Ken - any ideas?  You know this code better than I do.


  Bron Gondwana
  brong at

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