I'm looking into this.
----- Original Message -----
From: "Jason Dillon" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 10, 2001 10:55 PM
Subject: [JBoss-dev] more contention fluff
> Well, I have not been able to track it down fully, but I modified the
> locktest to be a bit more agressive. First I simply up'd the thread and
> iteration count (which could cause a NullPointerException in the entity
> syncrhonization interceptor... but not all the time). It will also hang
> some times, and then sometimes it will just run fine.
>
> I was not sure if the commit-option had anything todo with it, so I
expanded
> the test to run over each commit option. With the thread count low (10 or
> so), option a and b work, but when it comes to c it never makes it
through,
> the test just hangs. I have no idea what happens with option d.
>
> All the while it produces a lot (alot of transactional contention on
> contextXXX) messages, which makes sence.
>
> I also changed the test to actually assert if the test failed.
> Unfortunatly, the test will timeout and not be included in the report...
not
> really sure why that is, but it is.
>
> *sigh*
>
> I was hoping to reproduce what I am seeing with this test, but it has not
> turned out that way. I can not even tune the test to fail each time... I
> really need a drink. It does fail though... with a hang or null pointer.
>
> Anyways, I commented out the c & d tests for now since they cause the
report
> not to show up and I turned the thread count down to 10 and iter to 20.
> Someone who knows a little more about the locking mechanism (marc?) might
> want to play with this test a little to see where it hangs and where the
> null is thrown.
>
> I ended up using the RMI IL for now, but I think that I still get a
> contention/hang after a while =(
>
> --jason
>
>
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