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Date: Wed, 8 Dec 2010 03:53:00 -0500 (EST)
From: "Knut Anders Hatlen (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-4856) Add thread dump information when
 derby crash
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    [ https://issues.apache.org/jira/browse/DERBY-4856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12969249#action_12969249 ] 

Knut Anders Hatlen commented on DERBY-4856:
-------------------------------------------

The two new files added in the patch didn't have the svn:eol-style property set. I fixed that and committed revision 1043334.

Here's a description of how to configure Subversion to set this property automatically for you: http://www.apache.org/dev/svn-eol-style.txt

> Add thread dump information when derby crash
> --------------------------------------------
>
>                 Key: DERBY-4856
>                 URL: https://issues.apache.org/jira/browse/DERBY-4856
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>            Reporter: Lily Wei
>            Assignee: Lily Wei
>            Priority: Minor
>             Fix For: 10.8.0.0
>
>         Attachments: ContextManager.java, corruptdb.zip, derby-4856-1a.diff, DERBY-4856-part_1_1a.diff, DERBY-4856_part_2_2a.diff, DERBY-4856_part_2_2b.diff, derby.log
>
>
> On system crash or session ending error, Derby should dump as much information as possible. Such as: forcing a javacore if possible or at least thread dump and system environment information. This should only occur if a running session crashes not on boot error due to fail recovery etc.
> The IBM jvm provides a way to programmatically dump a javacore. i.e. com.ibm.jvm.Dump.JavaDump() And, the SUN jvm will force a thread dump using the Unsafe class and there may be a better way. 

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