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Re: [grouper-users] Grouper Issues Under Load


Chronological Thread 
  • From: Stephen Langella <>
  • To: Tom Zeller <>
  • Cc:
  • Subject: Re: [grouper-users] Grouper Issues Under Load
  • Date: Tue, 7 Feb 2012 17:02:16 -0500

We implemented the grouper API behind a custom interface exposed on an ESB.   There are multiple processes interacting with a single instance of grouper on the bus.    For each interaction we create a session and then stop it, for example:


GrouperSession session = GrouperSession.start(subject, true);
Stem stem = StemFinder.findByName(session, name, true);
GrouperSession.stopQuietly(session);

--Steve

Stephen Langella
Inventrio
545 Metro Place South, Suite 475
Dublin OH 43017
(614) 389-2795 ext. 102



On Feb 7, 2012, at 4:53 PM, Tom Zeller wrote:

We are getting the following exception very consistently when grouper is
under load.   We are using Grouper 2.0.3, we also get the exception when
using Grouper 1.6.3.  Any help or guidance would be appreciated.

Could you please quantify "under load" more ?

For example, are you (a) running lots of parallel processes or (b)
lots of database operations in a single thread or (c) ?

TomZ




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