Hi anil,It will be updated at the next fsimage checkpoint. There are other methods of update : 1-execute this command in the secondary namenode or the standby one dfsadmin -saveNamespace 2-or by changing the parameters : dfs.namenode.checkpoint.period, dfs.namenode.checkpoint.txn,and the period of checking these conditions: dfs.namenode.checkpoint. Note: this operation is CPU and memory intensive you should choose the right time and parameters.
... View more
