[ 
http://issues.apache.org/jira/browse/DERBY-1564?page=comments#action_12426175 ] 
            
John H. Embretsen commented on DERBY-1564:
------------------------------------------

This was only seen on the combination of Solaris OS and Sparc processors during 
10.2.0.4 snapshot testing at Sun DBTG, and I have not seen the failure on any 
other platform (with default heap sizes). However, I have been focusing on 
trying to reproduce the failures on the specific platforms where the test 
failed instead of trying platforms where it did not fail, so I cannot say with 
very high confidence that it will never happen on other platforms.

I have been able to reproduce the failure manually on some of the platforms, 
but only when running suites. On some platforms I have only been able to 
reproduce it when running derbyall, while on other platforms it has failed when 
running the derbynetmats or derbynetclientmats suites. On some platforms it 
fails in both derbyall and (one or both of) the separate suites. I have so far 
not been able to reproduce the failure by running the test by itself, which 
makes it harder to debug. It also seems that it does not fail 100% of the time 
on some platforms.

I have been using 10.2.0.4 jars for the most part, because there has been some 
(unrelated) noise surrounding the wisconsin test since the snapshot was made 
(DERBY-1609, DERBY-1625, DERBY-1649). Also, once the patch for DERBY-1614 goes 
in, the test will run with different (larger) heap sizes by default, which 
largely reduces the risk of us seeing this failure in the near future.


> wisconsin.java test failed in DerbyNet or DerbyNetClient frameworks, VM for 
> network server got OutOfMemoryError
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-1564
>                 URL: http://issues.apache.org/jira/browse/DERBY-1564
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Server, Test, Regression Test Failure
>    Affects Versions: 10.2.0.0
>         Environment: Solaris Sparc, Java 5 or 6, DerbyNet or DerbyNetClient 
> framework.
>            Reporter: Andreas Korneliussen
>             Fix For: 10.2.0.0
>
>         Attachments: wisconsin.tar.gz
>
>
> The wisconsin test failed on some Solaris (sparc) platforms during testing of 
> the 10.2.0.4 snapshot, in either the DerbyNet or DerbyNetClient framework. 
> No output in the outfile. On some platforms the DerbyNet.err file has one 
> message:
> Exception in thread "Thread-2" java.lang.OutOfMemoryError: Java heap space
> On some platforms the OutOfMemoryError is also (or instead) reported in the 
> derby.log file.
> All test machines had 2 CPUs and 2 GB of RAM.
> Here is a list of platforms where it failed:
> Java 6 (Mustang, build 91) :
> --------------------------------------------------
> Solaris 10 (sparc)
> derbyall/derbynetmats/derbynetmats.fail:lang/wisconsin.java
> Solaris 8 (sparcN-2)
> derbyall/derbynetmats/derbynetmats.fail:lang/wisconsin.java
> Solaris 10, local zone (sparc_zone1)
> derbyall/derbynetmats/derbynetmats.fail:lang/wisconsin.java
> Solaris 10, local zone (sparc_zone3)
> derbynetclientmats/derbynetmats/derbynetmats.fail:lang/wisconsin.java
> Solaris 10, global zone (zones)
> derbynetmats/derbynetmats.fail:lang/wisconsin.java
> Java 5 (Sun's HotSpot VM, v1.5.0):
> ---------------------------------------------------------------
> Solaris 9 (sparcN-1) 
> derbyall/derbynetclientmats/derbynetmats.fail:lang/wisconsin.java
> Solaris 8 (sparcN-2)
> derbyall/derbynetmats/derbynetmats.fail:lang/wisconsin.java 
> See http://www.nabble.com/10.2.0.4-Test-results-p5485739.html for details.

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