mysql problem

Rudolf Gabler rug at
Wed Sep 11 03:46:17 EDT 2013


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.

If I use sqlite instead everything is stable for at least a month. 

Any hint what may occur?


Rudi Gabler
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