[jbpm-dev] [jbpm 5.2] delete task rows when a process ends

Mon Mar 12 21:07:11 EDT 2012

I'm usually against automating that kind of business domain specific
information. If you allow to externalize the information in a domain
specific way, the user which does that definition will need to be
responsible for those clean ups, just like in every domain specific
database.

On Tue, Mar 13, 2012 at 1:03 AM, Kris Verlaenen <kverlaen at redhat.com> wrote:

> Jeff,
>
> The engine already takes care of cleaning up process instances.  Cleaning
> up tasks for completed process instances is something that is possible with
> what we're discussing here.  Audit / history data is more difficult though.
>  You cannot really define when it is no longer necessary, that depends on
> what you're trying to use it for.  A solution could be to archive data
> after a certain amount of time (so that it won't impact performance but is
> still available somewhere if necessary), but not sure how much we could
> automate that?
>
> Kris
>
> ----- Oorspronkelijk bericht -----
> Van: "Jeffrey DeLong" <jdelong at redhat.com>
> Aan: "Kris Verlaenen" <kverlaen at redhat.com>
> Cc: jbpm-dev at lists.jboss.org, "Mauricio Salatino" <salaboy at gmail.com>
> Verzonden: Maandag 12 maart 2012 17:39:04
> Onderwerp: Re: [jbpm-dev] [jbpm 5.2] delete task rows when a process ends
>
>
>
>
> Both process instances and their associated tasks should be removed from
> the database once the process has complete. This needs to be automated, as
> users may start 100K process per day. Removing them manually from an admin
> console is absolutely not going to work.
>
>
> FYI this was real flaw in jBPM3. Customers would start 100 of thousands of
> processes unaware that their database tables were growing (particularly if
> they did not turn off the audit log. After six months or so their system
> crawled to a halt because they had tens of millions of rows in their
> various tables.
>
>
> Jeff
>
>
>
> On Mar 12, 2012, at 10:21 AM, Mauricio Salatino wrote:
>
>
> You should be able to clean up the tasks based on the users, to enable the
> users itself to clean up old and finished tasks.
> The same for groups. These are basically extensions to the queries that
> you mention. We can create a very simple form that allow the admins to do
> these clean ups from the jbpm console administration tab.
> We should have an unified way to do clean ups for processes as well right?
>
>
> What about the HistoryLog? should we provide also a way to externalize the
> Human task information?
> Usually in that way we can delegate the clean ups (business cleanups) to
> the users that define how they want to externalize that information, and we
> inside the project can provide a way to do internal clean ups for the human
> task server and for the process instances that are canceled or ended.
>
>
> My two cents..
>
>
> On Mon, Mar 12, 2012 at 4:07 PM, Kris Verlaenen < kverlaen at redhat.com >
> wrote:
>
>
> We could offer support for different strategies to clean up the task
> database. What would be the options here?
>
> * Remove the task from the database when it is completed (and listeners
> have been notified)
> - this is probably too soon though, as some components might still need
> results (async for example)
> * Consider this as a clean-up job
> - remove completed tasks older than x days
> - remove completed tasks of completed process instances
> - ...
>
> Any others ideas?
>
> Kris
>
> ----- Oorspronkelijk bericht -----
> Van: "Mauricio Salatino" < salaboy at gmail.com >
> Aan: "Giovanni Marigi" < gmarigi at redhat.com >
> Cc: jbpm-dev at lists.jboss.org
> Verzonden: Maandag 12 maart 2012 16:32:42
> Onderwerp: Re: [jbpm-dev] [jbpm 5.2] delete task rows when a process ends
>
>
>
>
> Sure, that can be contributed back as an extension. If you can create a
> JPA query that do what your store procedure is doing we can provide a way
> to execute that, or let the user defines when and how he/she wants to do
> the clean ups.
>
>
>
> On Mon, Mar 12, 2012 at 3:26 PM, Giovanni Marigi < gmarigi at redhat.com >
> wrote:
>
>
> I created a stored procedure scheduled with a job that delete all tasks
> data related to a non existing process instance (it runs once a day)
> I think anyway the problem must be faced because when you handle many
> process instances every day your JBPM database will grow fast and it
> becomes an issue in production.
>
> Thanks,
> Giovanni
>
>
>
> ----- Original Message -----
> From: "Mauricio Salatino" < salaboy at gmail.com >
> To: "Giovanni Marigi" < gmarigi at redhat.com >
> Cc: jbpm-dev at lists.jboss.org
> Sent: Monday, March 12, 2012 4:21:50 PM
> Subject: Re: [jbpm-dev] [jbpm 5.2] delete task rows when a process ends
>
> Not really. usually BPMS are good to keep track about that the work that
> has being done. The human task server will keep track and record all your
> human activities.
> If you want to do some clean ups you will need to write the right sql
> queries against the human task server schemas
>
>
> On Mon, Mar 12, 2012 at 2:43 PM, Giovanni Marigi < gmarigi at redhat.com >
> wrote:
>
>
> Hi,
> currently when a process instance ends, every task linked to this process
> (even if in state Completed) is not deleted from DBMS.
> Is there a way to change this behaviour and delete all task data persisted
> on DBMS when a process ends?
>
> Thanks,
> Giovanni
>
> --
> Giovanni Marigi
> Red Hat - JBoss Consultant -
> email: gmarigi at redhat.com
> Mobile: +39 3423175986
> Office: +39 0687502315
>
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>
>
>
> --
> - MyJourney @ http://salaboy.wordpress.com
> - Co-Founder @ http://www.jugargentina.org
> - Co-Founder @ http://www.jbug.com.ar
>
> - Salatino "Salaboy" Mauricio -
>
> --
> Giovanni Marigi
> Red Hat - JBoss Consultant -
> email: gmarigi at redhat.com
> Mobile: +39 3423175986
> Office: +39 0687502315
>
> Red Hat Italy
> Via Andrea Doria 41m
> 00192 Roma - Italy
> www.redhat.com
>
> Prima di stampare, pensa all'ambiente ** Think about the environment
> before printing
>
>
>
>
> --
> - MyJourney @ http://salaboy.wordpress.com
> - Co-Founder @ http://www.jugargentina.org
> - Co-Founder @ http://www.jbug.com.ar
>
> - Salatino "Salaboy" Mauricio -
>
> _______________________________________________
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> https://lists.jboss.org/mailman/listinfo/jbpm-dev
>
>
>
>
> --
> - MyJourney @ http://salaboy.wordpress.com
> - Co-Founder @ http://www.jugargentina.org
> - Co-Founder @ http://www.jbug.com.ar
>
> - Salatino "Salaboy" Mauricio -
> _______________________________________________
> jbpm-dev mailing list
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> https://lists.jboss.org/mailman/listinfo/jbpm-dev
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>

-- 
 - MyJourney @ http://salaboy.wordpress.com
 - Co-Founder @ http://www.jugargentina.org
 - Co-Founder @ http://www.jbug.com.ar

 - Salatino "Salaboy" Mauricio -
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