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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hbase/FAQ" by stack
Date Thu, 05 Jun 2008 17:04:09 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 stack:
http://wiki.apache.org/hadoop/Hbase/FAQ

The comment on the change is:
Added FAQs on moving master node and hbase.rootdir

------------------------------------------------------------------------------
   1. [#12 Why is HBase ignoring HDFS client configuration such as dfs.replication?]
   1. [#13 Any advice for smaller clusters in write-heavy environments]
   1. [#14 Can I change the regionserver behavior so it, for example, orders keys other than
lexicographically, etc.?]
+  1. [#15 Can I safely move the master from node A to node B?]
+  1. [#16 Can I safely move the hbase rootdir in hdfs?]
  
  
  == Answers ==
@@ -132, +134 @@

  '''14. [[Anchor(14)]] Can I change the regionserver behavior so it, for example, orders
keys other than lexicographically, etc.?'''
    Yes, by subclassing H!RegionServer.  For example that orders the row return by column
values, see [https://issues.apache.org/jira/browse/HBASE-605 HBASE-605]
  
+ '''15. [[Anchor(15)]] Can I safely move the master from node A to node B?'''
+   Yes.  HBase must be shutdown.  Edit your hbase-site.xml configuration across the cluster
setting hbase.master to point at the new location.
+ 
+ '''16. [[Anchor(16)]] Can I safely move the hbase rootdir in hdfs?'''
+   Yes.  HBase must be down for the move.  After the move, update the hbase-site.xml across
the cluster.
+ 

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