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Re: Temporarily deaf instances
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Re: Temporarily deaf instances


  • Subject: Re: Temporarily deaf instances
  • From: Mike Schrag <email@hidden>
  • Date: Mon, 24 Mar 2008 15:32:06 -0400

That's what everyone says, but JGroups made this particular problem worse. :(
Hmm .. I've been running the JGroups version for almost two years in production and with some pretty substantial load tests (500-1000 insane-clicky-concurrent-making-changing users). I've never run it on top of JMS, and admittedly, you lose persistent message delivery with the non-JMS one, but for us this wasn't a problem.

But still, I don't think this is a deadlock because you come back, and you don't come back from deadlocks. JGroups does love to create threads, but they don't have many live concurrently, generally (just lots created over time). Without being able to get a thread dump, it will be pretty hard to diagnose this. If you're running on 1.5 (I think you must be because I think JGroups is 1.5 only?) you might try running a jstack on your app when this happens, though I would think it would have less success than a kill -QUIT would ... Worth a shot, though.

ms

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  • Follow-Ups:
    • Re: Temporarily deaf instances
      • From: Gary Teter <email@hidden>
References: 
 >Temporarily deaf instances (From: Gary Teter <email@hidden>)
 >Re: Temporarily deaf instances (From: Mike Schrag <email@hidden>)
 >Re: Temporarily deaf instances (From: Gary Teter <email@hidden>)
 >Re: Temporarily deaf instances (From: Simon McLean <email@hidden>)
 >Re: Temporarily deaf instances (From: Gary Teter <email@hidden>)

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