ws-sandesha-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jaliya Ekanayake" <>
Subject Re: Thread Safety w/ SandeshaContext
Date Mon, 17 Jul 2006 16:32:20 GMT
  ----- Original Message ----- 
  From: Hill, Matthew (UK) 
  To: Jaliya Ekanayake 
  Sent: Monday, July 17, 2006 11:34 AM
  Subject: RE: Thread Safety w/ SandeshaContext


  Thankyou very much for the sample code you've added in. I checked it out and it helped me
find a bug in my code and it is now working as I expected. Really appreciate the response,

  Kind Regards


  From: Jaliya Ekanayake [] 
  Sent: 14 July 2006 17:17
  To: Hill, Matthew (UK)
  Subject: Re: Thread Safety w/ SandeshaContext

        *** WARNING ***

        This mail has originated outside your organization,
        either from an external partner or the Global Internet. 
        Keep this in mind if you answer this message. 

  Hi Matt,

  Hmm.., I did not get the exception you have mentioned. However I have added a new sample
that use several threads. Please take a new checkout. The sample is

  Please note that I have fixed a problem with the way we use the UUIDGenerator. So now it
should work fine.

  Sandesha2 should also be fine with threads however I still did not test it.


    ----- Original Message ----- 
    From: Hill, Matthew (UK) 
    Sent: Friday, July 14, 2006 6:51 AM
    Subject: Re: Thread Safety w/ SandeshaContext


    Sorry for emailing to 2 addresses; I write with respect to the post below:

    Since this is a relatively old post I thought I'd email you direct to be more sure of
a response. 

    I am also receiving the IllegalStateException when trying to run sandesha 1 with multiple
threads. I have tried checking out and new copy as advised and building with maven 1 (then
bundling up into a jar file) but have found it made no difference and I still receive the
IllegalStateException error.

    My questions are: 
    1) Whether this is still a known issue with sandesha1 or if I have somehow gotten my compile
    2) If sandesha2 is designed to be thread safe; I am considering porting over to sandesha2
but thought it may be quicker for me to ask before finding the latest version isn't thread
safe either


    ps. The post referred to in the email:
Hi Alex,

Thanks for pointing this out. Now it is fixed. Please take a new checkout


and build using maven.



----- Original Message -----

From: "Alex Horwitz" <>
To: <>
Sent: Monday, March 06, 2006 10:17 AM
Subject: Thread Safety w/ SandeshaContext

Hello All:

My apologies if this has been asked / addressed before (or if my assessment

is incorrect).  I am implementing a simple test where I spin up multiple

client threads, each of which uses Sandesha (1.x) to reliable execute a

service.  This is resulting in an IllegalStateException.  A quick profile

session shows contention in the SandeshaContext.startClientSender method, as

multiple threads enter this static method concurrently and, consequently,

the Sender's startSender method is called multiple times against the same

instance, which has the effect of adding too many SenderWorkers to the

ThreadPool (hence, the Illegal State).

If anyone has experience with this issue, I would greatly appreciate your


Thank you.

Alex Horwitz
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
    Matthew Hill 
    Research Scientist, Networks Group
    BAE SYSTEMS Advanced Technology Centre 
    Great Baddow
    Chelmsford, Essex UK CM2 8HN
    Tel:  +44 (0)1245 242027
    Fax: +44 (0)1245 242124
    VNET: 333 4027
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

          This email and any attachments are confidential to the intended
          recipient and may also be privileged. If you are not the intended
          recipient please delete it from your system and notify the sender.
          You should not copy it or use it for any purpose nor disclose or
          distribute its contents to any other person.

View raw message