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From Alexander Knöller <alexander.knoel...@neuland-bfi.de>
Subject Re: parallel webapp initialization
Date Tue, 11 Oct 2011 07:20:29 GMT
Hi Felix.

Then you are already working on a patch?
I haven't done any tomcat development, yet.
And I am not familiar with the ettiquette for developing patches.
So if you are already working on it, I won't start doing the same, right?
Except cuncurrent development is favored?

Regards
Alex

Am 10.10.2011 um 19:30 schrieb Felix Schumacher:

> 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.
> 
> 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?
> 
> 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
>>> 
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>> 
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> 
> 
> 
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--
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
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