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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4319) hang in suites.all with ibm 1.5 on AIX after ttestDefaultProperties
Date Tue, 01 Mar 2011 22:43:36 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kathey Marsden updated DERBY-4319:
----------------------------------

    Attachment: derby-4319_teardown_kill_on_bad_ping.txt

The attached patch changes NetworkServerControl.tearDown() to print the stack trace and destroy
the server process if the test ping fails to some error other than the standard Cannot Connect
error that happens if the server is not up. Before the patch if the ping failed for any reason
the assumption was that the server was down.

This doesn't eliminate the possibility for a hang entirely as if the test ping itself were
to hang, then we would still have the problem.  

Note this patch does not get at the root cause of the Connection reset error on aix, but will
hopefully get the tests to finish their run. Currently if the the process destruction is required,
it won't result in the failure of a test, just the print of the stacktrace to system.out.



> hang in suites.all with ibm 1.5 on AIX after ttestDefaultProperties
> -------------------------------------------------------------------
>
>                 Key: DERBY-4319
>                 URL: https://issues.apache.org/jira/browse/DERBY-4319
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Client
>    Affects Versions: 10.5.2.0
>         Environment: ibm jvm 1.5 SR9-0 on IBM AIX 3.5
>            Reporter: Myrna van Lunteren
>            Assignee: Kathey Marsden
>              Labels: derby_triage10_8
>         Attachments: derby-4319_teardown_kill_on_bad_ping.txt, javacore.20090723.093837.25380.0001.txt,
javacore.20090723.093909.24726.0001.txt
>
>
> The test run for 10.5.2.0 hung in suites.All. The console output (the run was with -Dderby.tests.trace=true)
showed ttestDefaultProperties had successfully completed but the run was halted.
> ps -eaf | grep java showed the process that kicked off suites.All, and a networkserver
process with the following flags:
> - classpath <classpath including derby.jar, derbytools.jar, derbyclient.jar, derbynet.jar,
derbyTesting.jar, derbyrun.jar, derbyTesting.jar and junit.jar> -Dderby.drda.logConnections=
-Dderby.drda.traceAll= -Dderby.drda.traceDirectory= -Dderby.drda.keepAlive= -Dderby.drda.timeSlice=
-Dderby.drda.host= -Dderby.drda.portNumber= -derby.drda.minThreads= -Dderby.drda.maxThreads=
-Dderby.drda.startNetworkServer= -Dderby.drda.debug= org.apache.derby.drda.NetworkServerControl
start -h localhost -p 1527
> This process had been sitting for 2 days.
> After killing the NetworkServerControl process, the test continued successfully (except
for DERBY-4186, fixed in trunk), but the following was put out to the console:
>  START-SPAWNED:SpawnedNetworkServer STANDARD OUTPUT: exit code=137
> 2009-07-18 03:16:07.157 GMT : Security manager installed using the Basic server
> security policy.
> 2009-07-18 03:16:09.169 GMT : Apache Derby Network Server - 10.5.2.0 - (794445)
> started and ready to accept connections on port 1527
> END-SPAWNED  :SpawnedNetworkServer STANDARD OUTPUT:

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