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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hbase/HowToMigrate" by izaakrubin
Date Wed, 16 Jul 2008 17:20:31 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The following page has been changed by izaakrubin:

   * Run {{{{$HBASE_HOME}/bin/hbase migrate update}}}
   * Start HBase 0.2.
+ As you will notice, the [http://wiki.apache.org/hadoop/Hadoop%20Upgrade Hadoop Upgrade Instructions]
(specifically steps 2-4, 16-18) ask you to generate several logs to compare and ensure that
the upgrade ran correctly.  I did notice some inconsistency in my logs between ''dfs-v-old-report-1.log''
and ''dfs-v-new-report-1.log''; specifically the ''Total effective bytes'' and ''Effective
replication multiplier'' fields did not match (in the new log, the values reported were zero
and infinity, respectively).  Additionally, ''dfs-v-new-report-1.log'' claimed that the update
was not finalized.  Running {{{{$HADOOP_HOME}/bin/hadoop dfsadmin -finalizeUpgrade}}} resolves
the second issue, finalizing the upgrade as expected.  I could not find a way to resolve the
inconsistencies with the ''Total effective bytes'' and ''Effective replication multiplier''
fields.  Nonetheless, I found no problems with the migration and the data appeared to be completely

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