Hey, I have deployed HDP 2.1.2 with Ambari 1.5.1 on a small test cluster of 7 nodes.
The host that was running the namenode server had to undergo maintenance today, and I need to redeploy the namenode software on that system. After the host came back I tried to install the namenode software using the API, but I got the error, ERROR: Namenode directory(s) is non empty. Will not format the namenode. List of non-empty namenode dirs /state/partition1/hadoop/hdfs/namenode I didn't want to erase the namenode directory in case I could use the information on it. Is this possible? -Anoop
