please refer to :
http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsRollingUpgrade.html
On Tue, Feb 3, 2015 at 5:38 PM, Mr.J tjst...@kgrid.co.kr wrote:
my cluster A, and cluster B. To upgrade to version 2.6
In what order should I upgrade?
Journalnode 1 Journalnode
my cluster A, and cluster B. To upgrade to version 2.6
In what order should I upgrade?
Journalnode 1 gt;gt; Journalnode 2 gt; Journalnode 3 gt;gt; Namenode Std
gt;gt; Namenode Act gt;gt; Datanode ??
Do I also need to upgrade the zookeeper?
hadoop-2.4.1 : JournalNode, Namenode, Datanode
