[Building Sakai] James configuration

[Carl Hall]

We don't.  It's just something we do whenever James becomes
unresponsive (doesn't accept connections).


On Tue, Mar 24, 2009 at 12:20, Thomas Amsler <tpamsler at ucdavis.edu> wrote:
> How do you know that the james webapp didn't bootstrap the component manager?
> Best,
> -- Thomas
>
>
>
>
> On Tue, Mar 24, 2009 at 8:30 AM, Carl Hall <carl.hall at gatech.edu> wrote:
>> Whenever we have problems with James, we restart just the james webapp
>> (touch the web.xml) and everything seems to come back to life.  This
>> has saved us from dropping sessions by restarting the entire instance.
>>
>> On Tue, Mar 24, 2009 at 11:07, Thomas Amsler <tpamsler at ucdavis.edu> wrote:
>>> We have the exact same problem and spent some time figuring out the
>>> source of this issue.
>>>
>>> We simulated various load and usage scenarios but were never able to
>>> reproduce this issue. By reading up on the Apache James email
>>> archives, it's highly recommended to upgrade to the latest version
>>> which is v2.3.1 and Sakai is using v2.1.3.
>>>
>>> Our current solution is that one node is handling all the mail. That
>>> node doesn't allow any user connections so that we can restart that
>>> sakai instance as soon as our monitoring script detects the "Maximum
>>> number of open connections ..." problem.
>>>
>>> We have some of this documented here:
>>> https://confluence.ucdavis.edu/confluence/x/KYC3
>>>
>>> Best,
>>> -- Thomas
>>>
>>>
>>>
>>>
>>> On Tue, Mar 24, 2009 at 4:42 AM, Daniel Merino
>>> <daniel.merino at unavarra.es> wrote:
>>>> Hi all.
>>>>
>>>> We have problems with James. Sometimes the mailarchive stops working and it
>>>> gives us the next error in the logs:
>>>>
>>>> 24/03/09 12:34:55 WARN  connections: Maximum number of open connections
>>>> exceeded - refusing connection.  Current number of connections is 30
>>>>
>>>> In the file
>>>> /home/sinfo/sakai_2-5-3/mailarchive/mailarchive-james/james/src/webapp/apps/james/SAR-INF/config.xml
>>>> we have 30 connections allowed.
>>>>
>>>> <connections>
>>>>       <idle-timeout>300000</idle-timeout>
>>>>       <max-connections>30</max-connections>
>>>>    </connections>
>>>>
>>>> We don't know if maybe this is a low value for the number of connections or
>>>> if James doesn't free properly these connections.
>>>>
>>>> Could somebody tell me how can we configurate correctly this parameter?
>>>> Thanks in advance.
>>>> --
>>>> Daniel Merino
>>>> daniel.merino at unavarra.es
>>>> Gestor de teleformación - Centro Superior de Innovación Educativa.
>>>> Tfno: 948-168489 - Universidad Pública de Navarra.
>>>> --
>>>> Cualquier idiota puede decir la verdad, pero para mentir hace falta tener
>>>> imaginación. (Perich)
>>>>
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>>
>