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From "Bryan Pendleton (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1114) derbynet/testSecMec.java fails intermittently and test exits mysteriously when server is shutdown as part of the testrun.
Date Wed, 15 Mar 2006 05:57:42 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1114?page=comments#action_12370472 ] 

Bryan Pendleton commented on DERBY-1114:
----------------------------------------

I wonder whether the problem might possibly be on the RunTest side, instead.

That is, I've sort of got three possible theories, so far:

1) The child process prematurely closes System.out and System.err. This causes the parent
process to think that the test run is complete, and the remainder of the output is lost.
2) The child process prematurely calls System.exit. The test ends prematurely and the remainder
of the output is not created.
3) The RunTest harness mistakenly decides that the child process has finished, when in fact
it is still running. RunTest terminates the test prematurely, and does not receive the full
output from the child.

I'm not sure I have any evidence to favor one of these theories over another, yet.


> derbynet/testSecMec.java fails intermittently and test exits mysteriously when server
is shutdown as part of the testrun.
> -------------------------------------------------------------------------------------------------------------------------
>
>          Key: DERBY-1114
>          URL: http://issues.apache.org/jira/browse/DERBY-1114
>      Project: Derby
>         Type: Bug
>   Components: Network Server, Test
>     Versions: 10.2.0.0
>  Environment: Java Version:    1.4.2_06
> Java Vendor:     Sun Microsystems Inc.
> Java home:       /usr/local/lib/j2sdk1.4.2_06/jre
> OS name:         Linux
> OS architecture: i386
> OS version:      2.4.21-27.0.2.ELsmp
>     Reporter: Sunitha Kambhampati
>     Priority: Minor
>  Attachments: Derby1114.diff.txt
>
> The test derbynet/testSecMec.java fails intermittently in a strange way that the test
actually exits before finishing the full test. 
> This issue was noticed by Bryan when he ran derbyall with the derby-1080 fix. Some discussion
and analysis that has been done is in Derby-1080. Please read comments in DERBY-1080. Some
main links in
> http://issues.apache.org/jira/browse/DERBY-1080#action_12370260
> http://issues.apache.org/jira/browse/DERBY-1080#action_12370374
> In short: the test does some switching of System.out and System.err streams before calling
networkserver.shutdown. This code was added to this test as part of fix for derby-273.   for
some reason, the networkserver.shutdown call makes the test to exit.  One theory is that the
network server.shutdown is causing the standard out streams to close and thus the test exits.
> -- Need to investigate what is the cause for this intermittent failure and how/why  networkserver.shutdown
is closing the stream or making the test to exit prematurely.

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