On Feb 16, 2012, at 8:58 AM, Paul Dunkler wrote:

> Hi Alexis,
> 
>> Hi,
>> 
>> You should carefully read the source of BackgroundTasks and watch Kieran's 
>> presentation.
> 
> thanks for that tipp. I'll do that!
> 
>> You should directly lock ec's not the osc. If you got deadlocks, that maybe 
>> causes by ec's or eo's shared between threads, you should instead pass 
>> globalIds and retrieve the eo in each thread with ec.faultForGlobalId.
> 
> I'm not sharing any EO's between threads.
> 
>> Then if you have massive eof processing going on in parallel, you should use 
>> a OSC pool.
> 
> Also a good suggestion. You mean the ERXObjectStoreCoordinatorPool, right?

He said "a OSC pool", meaning ERXTaskObjectStoreCoordinatorPool probably. 
ERXObjectStoreCoordinatorPool is "the OSC pool" :-)


ERXTaskObjectStoreCoordinatorPool is used by ERXAbstractTask, which is 
explained and demo'd in the BackgroundTasks example.



> 
>> Good luck
>> 
>> Alex
>> 
>> 2012/2/16 Paul Dunkler <[email protected]>
>> Hi Community,
>> 
>> i'm currently working on a WebObjects-Application which uses the Quartz 
>> Scheduler to schedule and run thousand but thousand of jobs. Every job is 
>> doing some work in the database (Like reading, computing and then 
>> Updating/Deleting some Details from the database).
>> 
>> This works quite well when i only allow Quartz to start one Single Thread 
>> for Job Execution. But when i configure more than one thread, it seams that 
>> i have problems with EditingContext / ObjectStoreCoordinator-Locking or 
>> something else.
>> 
>> The Question is: What should i do to achieve an entirely independent 
>> EOF-Stack per Quartz Thread? If it is possible without ramping up a complete 
>> EOF-Stack per Thread, this would be even better ;)
>> 
>> Currently i just tried to Create a new EditingContext per Job at the start, 
>> lock the rootObjectStore, do some things and then unlock the rootObjectStore 
>> and dispose the editingContext. But that doesn't seem to work for me.
>>>             // Job Start
>> 
>>>             EOEditingContext anEditingContext = ERXEC.newEditingContext();
>>>             anEditingContext.rootObjectStore().lock();
>> 
>>>             // Job Execution
>> 
>> 
>>>> // Job End
>> 
>>>             anEditingContext.saveChanges();
>>>             anEditingContext.rootObjectStore().unlock();
>> 
>> 
>> 
>> It would be nice to get your suggestions about this Topic.
>> 
>> --
>> Mit freundlichen Grüßen
>> 
>> Paul Dunkler
>> 
>>  _______________________________________________
>> Do not post admin requests to the list. They will be ignored.
>> Webobjects-dev mailing list      ([email protected])
>> Help/Unsubscribe/Update your Subscription:
>> https://lists.apple.com/mailman/options/webobjects-dev/alexis.tual%40gmail.com
>> 
>> This email sent to [email protected]
>> 
>> 
> 
> --
> Mit freundlichen Grüßen
> 
> Paul Dunkler
> 
> 
> 
> <xyrality_logo_medium.png>
> 
> -----------------------------------------------------
> XYRALITY GmbH • Lerchenstraße 28a • 22767 Hamburg
> Paul Dunkler • Softwareentwickler
> Mail: [email protected]       
> Tel: +49 (0) 40 23 51 78 97
> Mobil: +49 (0) 151 252 228 42
> Fax: +49 (0) 40 23 51 78 98
> Web: http://www.xyrality.com/
> Registergericht: Hamburg HRB 115332
> Geschäftsführer: Sven Ossenbrüggen & Alexander Spohr
> -----------------------------------------------------
> 
> _______________________________________________
> Do not post admin requests to the list. They will be ignored.
> Webobjects-dev mailing list      ([email protected])
> Help/Unsubscribe/Update your Subscription:
> https://lists.apple.com/mailman/options/webobjects-dev/kelleherk%40gmail.com
> 
> This email sent to [email protected]

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      ([email protected])
Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com

This email sent to [email protected]

Reply via email to