Hi Sathwik,

I have done it already. Cleanup logic is based on instance ID and using
instance ID we can obtains mex ids. Then we can use mexIDs to cleanup
relevant tables. I have used same logic for my clean up script as well.

But the problem I am facing is finding a completed message exchanges for an
active instance. Completed in the sense that mex will no longer in use (
like Mex Match Job) and safe to delete. So I consider following four
scenarios and came up with above SQL query. I have ignored the case where
instance creation message exchange since there is only one mex for an
instance following that pattern.

1) MyRole message exchange with request-only pattern and correlation status
MATCHED
2) MyRole message exchange request-response pattern and correlation status
MATCHED
3) PartnerRole message exchange with request-only pattern
4) PartnerRole message exchange with request-response pattern

But It seems like I have forgot to check a scenario when correlation match
event on Partner Role Message Exchanges. I am currently working on it.

Are you seeing any other message exchange patterns that need to be
considered here. ?

Thanks,
Hasitha.


*Hasitha Aravinda*
Blog: http://tryitnw.blogspot.com/
Linkedin: http://www.linkedin.com/in/hasithaaravinda



On Mon, Mar 30, 2015 at 11:46 AM, Sathwik B P <sathwik...@gmail.com> wrote:

> Oh my bad, It's a long running process.
>
> In that case I would recommend tracing the cleanup code for messages and
> using those if you have not done that already.
>
>
> On Mon, Mar 30, 2015 at 11:32 AM, Hasitha Aravinda <
> mail.hasith...@gmail.com
> > wrote:
>
> > Hi Sathwik,
> >
> > Thank you for your quick response. As I know instance clean up feature
> was
> > designed to clean up data when the instance is completed or failed. But
> In
> > my scenario I want to clean data from a running instance.
> >
> > Thanks,
> > Hasitha.
> >
> >
> >
> >
> >
> > *Hasitha Aravinda*
> > Blog: http://tryitnw.blogspot.com/
> > Linkedin: http://www.linkedin.com/in/hasithaaravinda
> >
> >
> >
> >
> >
> > On Mon, Mar 30, 2015 at 11:19 AM, Sathwik B P <sathwik...@gmail.com>
> > wrote:
> >
> > > Hi,
> > >
> > > How about using instance data cleanup
> > > https://ode.apache.org/instance-data-cleanup.html
> > >
> > > Have you tried it out.
> > >
> > > regards,
> > > sathwik
> > >
> > > On Mon, Mar 30, 2015 at 10:38 AM, Hasitha Aravinda <
> > > mail.hasith...@gmail.com
> > > > wrote:
> > >
> > > > Hi Devs,
> > > >
> > > > I have a long running process instance which runs on a loop. It
> handles
> > > > hundreds of message exchanges ( both invokes and receives ) per day
> and
> > > > designed to runs years until business logic ends.
> > > >
> > > > Now the problem is, I am seeing database is growing with mex data
> > related
> > > > to this process instance. With my experiences with ODE, I have seen
> > > > performance degradation with database size increases. (I am using ODE
> > > > 1.3.5.) So I am thinking writing a clean up script to clean up
> > following
> > > > tables.
> > > >
> > > > ODE_MEX_PROP,
> > > > ODE_MESSAGE,
> > > > ODE_MESSAGE_EXCHANGE
> > > >
> > > > So I want to identify the old message exchanges ( let's say created 2
> > > > months before) in order to clean from the database.
> > > >
> > > > So I considered following scenarios.
> > > >
> > > >    - MyRole message exchange with request-only and request-response
> > > pattern
> > > >    - PartnerRole message exchange with request-only and
> > request-response
> > > >    pattern
> > > >
> > > > I used following filter to filter out old message exchanges.
> > > >
> > > > SELECT *
> > > > FROM ODE_MESSAGE_EXCHANGE MEX
> > > > WHERE MEX.PROCESS_INSTANCE_ID IN ('3752')
> > > > AND
> > > > (
> > > >   (
> > > >     -- Completed MyRole Message Exchanges
> > > >     MEX.CORRELATION_STATUS IN ('MATCHED')
> > > >     AND MEX.DIRECTION             = '77'
> > > >   )
> > > >   OR
> > > >   (
> > > >     -- Partner Role Message Exchanges.
> > > >     MEX.DIRECTION             = '80'
> > > >   )
> > > > )
> > > > AND
> > > > (
> > > >   (
> > > >     -- Handeling REQUEST_RESPONSE message exchanges.
> > > >     MEX.PATTERN         = 'REQUEST_RESPONSE'
> > > >     AND MEX.STATUS      IN ('RESPONSE' , 'FAULT' , 'FAILURE' ,
> > > > 'COMPLETED_OK' , 'COMPLETED_FAULT', 'COMPLETED_FAILURE')
> > > >   )
> > > >   OR
> > > >   (
> > > >     -- Handeling REQUEST_ONLY message exchanges.
> > > >     MEX.STATUS          IN ( 'ASYNC' , 'FAULT' , 'FAILURE' ,
> > > 'COMPLETED_OK'
> > > > , 'COMPLETED_FAULT', 'COMPLETED_FAILURE')
> > > >     AND MEX.PATTERN     = 'REQUEST_ONLY'
> > > >   )
> > > > );
> > > >
> > > > I have done some tests to verify whether this is possible and found
> > that
> > > we
> > > > can clean up old message exchanges/messages without affecting process
> > > > execution. I though get advice from the ODE developers to improve my
> > > logic
> > > > on filtering old message exchanges. Appreciate your input on this.
> > > >
> > > > Thanks,
> > > > Hasitha.
> > > >
> > > > *Hasitha Aravinda*
> > > > Blog: http://tryitnw.blogspot.com/
> > > > Linkedin: http://www.linkedin.com/in/hasithaaravinda
> > > >
> > >
> >
>

Reply via email to