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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6012) Print thread dump and dump javacore if NetworkServerTestSetup has to kill off the Network Server start up process due to timeout
Date Wed, 19 Dec 2012 23:31:15 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13536582#comment-13536582
] 

Mamta A. Satoor commented on DERBY-6012:
----------------------------------------

I should have tried to hand force the failure and see what happens. I just ran the suite with
the changes and since there was no failure, I didn't notice fail(msg) preventing the new code
from executing. 

I probably should first call JVMInfo.javaDump(); and then use a StringBuffer to collect the
existing error info and add to it the thread dump info and call fail on that string as shown
below.
                    JVMInfo.javaDump();
                    StringBuffer sb = new StringBuffer(msg);
                    sb.append(ExceptionUtil.dumpThreads());
                    fail(sb.toString());
The code above will replace the existing fail(msg) call;
Let me if that sounds correct.
                
> Print thread dump and dump javacore if NetworkServerTestSetup has to kill off the Network
Server start up  process due to timeout
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-6012
>                 URL: https://issues.apache.org/jira/browse/DERBY-6012
>             Project: Derby
>          Issue Type: Improvement
>          Components: Test
>    Affects Versions: 10.8.3.0
>         Environment: 
>            Reporter: Kathey Marsden
>            Assignee: Mamta A. Satoor
>             Fix For: 10.10.0.0
>
>         Attachments: DERBY6012_patch1_diff.txt
>
>
> If Network Server startup hangs or times out as in DERBY-5991, we should generate a javacore
or a thread dump so the cause of the problem can be more easily diagnosed.

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