Hi Ted, Find below the configuration I see in yarn-site.xml
<property> <name>yarn.resourcemanager.proxy-user-privileges.enabled</name> <value>true</value> </property> Regards, Raja. From: Ted Yu <yuzhih...@gmail.com> Date: Wednesday, August 16, 2017 at 9:05 PM To: Raja Aravapalli <raja.aravapa...@target.com> Cc: "user@flink.apache.org" <user@flink.apache.org> Subject: [EXTERNAL] Re: hadoop Can you check the following config in yarn-site.xml ? yarn.resourcemanager.proxy-user-privileges.enabled (true) Cheers On Wed, Aug 16, 2017 at 4:48 PM, Raja.Aravapalli <raja.aravapa...@target.com<mailto:raja.aravapa...@target.com>> wrote: Hi, I triggered an flink yarn-session on a running Hadoop cluster… and triggering streaming application on that. But, I see after few days of running without any issues, the flink application which is writing data to hdfs failing with below exception. Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken): token (HDFS_DELEGATION_TOKEN token xxxxxx for xxxxxx) can't be found in cache Can someone please help me how I can fix this. Thanks a lot. Regards, Raja.