tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mark Thomas <ma...@apache.org>
Subject Re: parallel webapp initialization
Date Mon, 10 Oct 2011 17:35:24 GMT
On 10/10/2011 18:30, Felix Schumacher wrote:
> Hi,
> Am Montag, den 10.10.2011, 10:17 +0200 schrieb Alexander Knöller:
>> Hi Mark.
>>
>> I'd like to give it a try.
>> If I can't find time to do it I'll send an email.
> I also took interest in it and have parallel starting of contexts
> implemented. But for stopping I couldn't find a central point to
> implement parallel undeploys.

StandardHost.stopInternal() is where I would start. You'll need to
override the default implementation.

> Also if I would want to parameterize deployment parallelization on per
> host-basis I would have to add methods StandardHost and to make life
> easier add methods to Host. Would that be acceptable?

Yep. I don't see a need for anything more than a single attribute that
sets the number of threads for deploy/undeploy.

Mark

> 
> Regards
>  Felix
>>
>> Regards
>> Alex
>>
>> Am 09.10.2011 um 18:32 schrieb Mark Thomas:
>>
>>> On 09/10/2011 13:55, Alexander Knöller wrote:
>>>> Hello mailing list.
>>>>
>>>> We use a single tomcat instance (soon switching from 5.5.23 to 7.x) with
24 webapps. Each webapp is based on spring and hibernate doing a lot of I/O during initialization.
>>>> Tomcat is often restarted which causes long downtimes.  As far as i can see
the tomcat initializes its wepapps sequentially. So despite the fact, that our tomcat-intance
runs on a 8 core linux system, tomcat seems to use a single thread to initalize the webapps.
>>>>
>>>> Is there a way on tomcat 7 to make it initialize webapps in parallel?
>>>
>>> Nope.
>>>
>>>> Or is there a basic obstacle?
>>>
>>> Not that I can think of off the top of my head. Just that no-one has
>>> felt the need to scratch that particular itch.
>>>
>>> Both start and stop needs to be taken care of.
>>>
>>> If you want to propose a patch, this might provide a starting point:
>>> https://issues.apache.org/bugzilla/show_bug.cgi?id=46264
>>>
>>> I've added some review comments to that patch that you may want to
>>> consider when writing a patch.
>>>
>>> If you need any help with the patch, just ask here.
>>>
>>> Thinking about this has got me interested. If you decide not to take a
>>> look at writing a patch for this, I'll probably take a look - maybe
>>> later this week.
>>>
>>> Mark
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>
>> --
>> neuland                        Fon   (0421) 380107-30
>> Buero fuer Informatik          Fax   (0421) 380107-99
>> Konsul-Smidt-Str. 8g           Mobil (0176) 20674323
>> 28217 Bremen                   alexander.knoeller@neuland-bfi.de
>>                                http://www.neuland-bfi.de
>>
>> Geschäftsführer: Thomas Koch
>> Registergericht: Amtsgericht Bremen, HRB 23395 HB
>> Steuer-Nr. 71-582/03051
>> USt-ID. DE  246585501  
>> _____________________________________________________________
>> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren
Sie bitte sofort den Absender und löschen Sie diese Mail. Das unerlaubte Kopieren sowie die
unbefugte Weitergabe dieser Mail und der darin enthaltenen Informationen sind nicht gestattet.
>> This e-mail may contain confidential and/or privileged information. If you are not
the intended recipient (or have received this e-mail in error) please notify the sender immediately
and delete this e-mail. Any unauthorized copying, disclosure or distribution of the material
in this e-mail is strictly forbidden.
>>  
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
> 
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
> 


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message