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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hbase/HowToMigrate" by DaveLatham
Date Sat, 07 Nov 2009 00:34:54 GMT
Dear Wiki user,

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

The "Hbase/HowToMigrate" page has been changed by DaveLatham.
http://wiki.apache.org/hadoop/Hbase/HowToMigrate?action=diff&rev1=39&rev2=40

--------------------------------------------------

  
  This migration rewrites all data.  It will take a while.
  
- It will disable compression setting all column families to no compression.  Enable manually
post-compression (Rare should be person who has compression enabled -- talk to us if this
is a problem).
+ Compression settings have changed in 0.20.x.  By default, migration will disable compression
setting all column families to no compression.  You can enable manually post-compression.
 Beginning with HBase 0.20.2, you can set a "migrate.compression" property in hbase-site.xml
to LZO or GZ to have all of your table migrated to that compression setting automatically.
See [[http://wiki.apache.org/hadoop/UsingLzoCompression|Using Lzo Compression]] for instructions
to add LZO support to your cluster.
  
  
  ==== Preparing for Migration ====

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