Falcon cluster entity submission

Question

I am getting error when I try to submit my cluster entity in Falcon.

Output error on submission:

org.apache.falcon.client.FalconCLIException: Bad Request;Cluster definition missing required namenode credential property: dfs.namenode.kerberos.principal
        at org.apache.falcon.client.FalconCLIException.fromReponse(FalconCLIException.java:44)
        at org.apache.falcon.client.FalconClient.checkIfSuccessful(FalconClient.java:1172)
        at org.apache.falcon.client.FalconClient.sendEntityRequestWithObject(FalconClient.java:694)
        at org.apache.falcon.client.FalconClient.submit(FalconClient.java:323)
        at org.apache.falcon.cli.FalconCLI.entityCommand(FalconCLI.java:364)
        at org.apache.falcon.cli.FalconCLI.run(FalconCLI.java:183)
        at org.apache.falcon.cli.FalconCLI.main(FalconCLI.java:133)

Answer 1

Is your cluster kerberized? Then better check, http://falcon.apache.org/Security.html

• Authentication Methods
• Authentication Configuration
• Authorization Configuration

Answer 2

I had this issue I resolved with the following. You can add following tag to your entity xml just before the closing tags of feed or cluster

<properties>
  <property name="dfs.namenode.kerberos.principal" value="nn/master.example.com"/>
 </properties>

In the above master.example.com is your hostname where name node exists.