Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB

[#1]

I had 6 Zookeeper nodes and CM warned me that I should have 5 at most.

I stopped the entire cluster and deleted the zookeeper role from one of the 6 nodes (a "follower" was deleted).

Upon restarting the cluster, everything seemed just fine but now my attempts to used hdfs result in this error:

ubuntu@ip-10-0-0-157:~$ hdfs dfs -ls /
17/11/14 19:10:47 WARN retry.RetryInvocationHandler: Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB after 1 fail over attempts. Trying to fail over after sleeping for 787ms.
17/11/14 19:10:48 WARN retry.RetryInvocationHandler: Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB after 2 fail over attempts. Trying to fail over after sleeping for 1030ms.
17/11/14 19:10:49 WARN retry.RetryInvocationHandler: Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB after 3 fail over attempts. Trying to fail over after sleeping for 2930ms.

Importantly, this error only affects the default usage above.  If, instead, I specify the namenode then everything works normally.

ubuntu@ip-10-0-0-156:~$ hdfs dfs -ls hdfs://10.0.0.246:8020/
Found 3 items
drwxr-xr-x   - hdfs supergroup          0 2017-11-11 22:15 hdfs://10.0.0.246:8020/system
drwxrwxrwt   - hdfs supergroup          0 2016-02-07 15:08 hdfs://10.0.0.246:8020/tmp
drwxr-xr-x   - hdfs supergroup          0 2016-10-21 18:01 hdfs://10.0.0.246:8020/user

Note: I still have the old zookeeper node and can re-add that role to it if that might help.

[#2]

Sorry for the late reply; glad you did it and now you know it was the perfect solution.

Cheers!