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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1397) Replace custom hbase locking with java.util.concurrent.locks.ReentrantLock
Date Mon, 21 May 2007 17:33:16 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HADOOP-1397:
--------------------------

    Attachment: hadoop1397.patch

Here is a patch that replaces all instances of HLocking with instances of ReentrantReadWriteLock.

Hairong Kuang:  Any chance you'd try this patch on your machine first before I mark this issue
with patch available'.  I would like to be sure that this patch does not introduce regression
of HADOOP-1341 "TestHBaseCluster fails with IllegalMonitorStateException" (I've run unit tests
on a couple of machines, both single and multiprocessor and it passes fine).  Thanks Hairong.

> Replace custom hbase locking with java.util.concurrent.locks.ReentrantLock
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-1397
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1397
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>            Reporter: stack
>            Priority: Minor
>         Attachments: hadoop1397.patch
>
>
> HBase has a locking class that is effectively a clone of java.util.concurrent.locks.ReentrantLock.
 This issue is about replacing HLocking with the java native implementation.

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