HDF 2 NIFI 1.1 Questions on Restart

[#1]

Cluster is still in the process of voting on the appropriate Data Flow.

What does this mean and what do you do?

[#2]

this was one error

Caused by: org.apache.hadoop.ipc.RemoteException: No lease on /drone/weathercurrent/.KVAY1485756615239.json (inode 3448592): File does not exist. Holder DFSClient_NONMAPREDUCE_-583745515_116 does not have any open files. at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:3521) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFileInternal(FSNamesystem.java:3611) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFile(FSNamesystem.java:3578) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.complete(NameNodeRpcServer.java:905)

[#3]

It took number of minutes, but NIFI restarted fine.

Is this something to monitor for?