[horde] webmail session problems, help required...
Jan Schneider
jan at horde.org
Wed Jun 2 09:02:58 UTC 2010
Zitat von Kostas Katsamakas <kmak at ccf.auth.gr>:
> Hello to everyone.
>
> Recently our horde/imp email has been upgraded and we are facing
> some problems regarding
> our sessions.
>
> We are curently using
> horde 3.3.6
> imp H3 4.3.4
>
> We get a lot of log messages:
>
> [horde] Error retrieving session data (id =
> 7331c3f467119efaa34fcdb38464a629): Lock wait timeout exceeded; try
> restarting transaction [pid 25439 on line 144 of
> "/var/www/mydomain/htdocs/horde/lib/Horde/SessionHandler/mysql.php"]
>
> and some
>
> [horde] Error writing session data: Lock wait timeout exceeded; try
> restarting transaction [pid 25440 on line 185 of
> "/var/www/mydomain/htdocs/horde/lib/Horde/SessionHandler/mysql.php"]
>
> these problems appear really often when i set in horde config:
> $conf[sessionhandler][params][persistent] = true
Then don't enable it. Unless you have a bottleneck in authenticating
database users or making database connections, it won't help you much
anyway.
> Note: I use Mysql based sessions and
> $conf[sessionhandler][params][rowlocking] = true;
And do you use the InnoDB engine for the session handler table?
> When i set persistent connections to false then these messages don't
> disappear completelly but become very much scarce.
> They appear much less often.
>
> In our old horde/imp system no problem occured and it had the same
> options i mentioned before.
>
> Our old system was with:
> imp H3 4.1.4 cvs
> horde 3.1.6
>
>
> I don't know what could be wrong. I even compared the source code of
> the source files mentioned in the log with the source code in the
> previous horde version.
> It was almost the same and with no 'important' changes.
> Has anyone faced this problem and solved it?
>
> Thank you.
>
>
>
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Jan.
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