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From st...@duboce.net
Subject Re: Review Request: Patch for hbase-2599 for 0.20.5 inclusion
Date Tue, 25 May 2010 23:04:24 GMT

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(Updated 2010-05-25 16:04:24.285624)

Review request for hbase.


Added some description

Summary (updated)

Version of hbase-2599 for 0.20 branch for 0.20.5.

It cuts DNS lookups from HServerInfo and uses the regionservers name everywhere instead of
ip sometimes and a lookedup hostname at other times.  Also puts hostname:port into .META.
rather than IP.  Removing DNS lookups makes it so there is no possibility for disagreement
over hostname if master gets one answer for an IP and the regionserver has another.

Other notes:

It replaces variable servername with hostnameandport so its clear whats going on.

Does some cleanup in HServerInfo renaming data member 'name' as 'hostname' and then purges
DNS caching and lookups from this class.  It removes some unnecessary setters and does some
javadoc fix ups.

Removes the dumb serverAddressToServerInfo from ServerManager.

This addresses bug hbase-2599.


  branches/0.20/src/java/org/apache/hadoop/hbase/ClusterStatus.java 948218 
  branches/0.20/src/java/org/apache/hadoop/hbase/HServerInfo.java 948218 
  branches/0.20/src/java/org/apache/hadoop/hbase/master/BaseScanner.java 948218 
  branches/0.20/src/java/org/apache/hadoop/hbase/master/HMaster.java 948218 
  branches/0.20/src/java/org/apache/hadoop/hbase/master/ProcessRegionOpen.java 948218 
  branches/0.20/src/java/org/apache/hadoop/hbase/master/ServerManager.java 948218 
  branches/0.20/src/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java 948218 
  branches/0.20/src/test/org/apache/hadoop/hbase/TestServerInfo.java PRE-CREATION 
  branches/0.20/src/webapps/master/table.jsp 948218 

Diff: http://review.hbase.org/r/88/diff


Doing now.



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