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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. +
