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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2178) Hooks for replication
Date Tue, 02 Feb 2010 01:10:19 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Daniel Cryans updated HBASE-2178:
--------------------------------------

    Attachment: HBASE-2178.patch

This patch is basically the src/java part of HBASE-2129. List of changes:

# HConstants
New constant for the znode parent.
# HConnectionManager
Introduces a new way of keeping tab of the ZK quorums so that a single HBase client can talk
to 2 different HBase clusters managed by the same quorum. 
# HbaseObjectWritable
Adds new classes to the Map.
# HRegion
Now passed the whole HRegionInfo when appending.
# HRegionServer
join() is down protected so child classes can override it and adds visibility to threadWakeFrequency
# HLog
The reader now offers seek and getPosition, good for reusability.
doWrite now takes the regionInfo instead of just the name.
HLog.Entry now implements Writable
# SequenceFileLogReader
Implements the 2 new methods.
# SequenceFileLogWriter
Calls hflush instead of sync.
# ZooKeeperWrapper
Mostly refactoring and new facilities.
# HBaseTestingUtility
Makes the conf settable in the constructor.
Refactors the code to start a mini ZK cluster.
Provides a way to truncate a table very fast.
# TestStoreReconstruction and TestHLog
Refactorings related to HLog modifications.

> Hooks for replication
> ---------------------
>
>                 Key: HBASE-2178
>                 URL: https://issues.apache.org/jira/browse/HBASE-2178
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.21.0
>
>         Attachments: HBASE-2178.patch
>
>
> This issue is about getting all the hooks for mdc replication in core HBase.

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