[horde] Problem with preferences backend

[Erik Quaeghebeur]

>> Excerpt from system logs:
>>
>> * /var/www/fpm.log:
>>
>> WARNING: [pool www] server reached max_children setting (4), consider
>> raising it
>>
>> (I cannot change the max_children setting as it is fixed by the
>> managed hosting provider.)
>>
>> Excerpts from Horde logs:
>>
>> * services/LOG_USER:
>>
>> 2013-12-11T13:50:43+00:00 ERR: HORDE [kronolith] Could not instantiate
>> PDO with DSN "mysql:protocol=unix;ssl=1;dbname=horde".  PDOException:
>> SQLSTATE[08004] [1040] Too many connections [pid 10533 on line 46 of
>> "/srv/data/web/includes/pear/php/Horde/Db/Adapter/Pdo/Base.php"]
>
> That message is pretty clear.

Is there anything I can do from the Horde-side qua configuration to 
avoid/alleviate this issue? (There is a hosting provider-imposed limit 
on max_connections as well, but I haven't managed to find out what it is 
yet.)


Erik