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From "Zhihong Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6524) Hooks for hbase tracing
Date Tue, 21 Aug 2012 23:48:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439168#comment-13439168
] 

Zhihong Ted Yu commented on HBASE-6524:
---------------------------------------

When I remove the patch from this JIRA, TestClusterBootOrder passed.

With patch, TestClusterBootOrder fails.
{code}
testBootRegionServerFirst(org.apache.hadoop.hbase.TestClusterBootOrder)  Time elapsed: 0.002
sec  <<< ERROR!
java.lang.NullPointerException
        at org.apache.hadoop.hbase.TestClusterBootOrder.tearDown(TestClusterBootOrder.java:55)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
{code}
Here is the command I used:
mvn clean -Dhadoop.profile=2.0 test -Dtest=TestClusterBootOrder#testBootRegionServerFirst
                
> Hooks for hbase tracing
> -----------------------
>
>                 Key: HBASE-6524
>                 URL: https://issues.apache.org/jira/browse/HBASE-6524
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Jonathan Leavitt
>             Fix For: 0.96.0
>
>         Attachments: createTableTrace.png, hbase-6524.diff
>
>
> Includes the hooks that use [htrace|http://www.github.com/cloudera/htrace] library to
add dapper-like tracing to hbase.

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