On 9 Feb 2016, at 05:55, Prabhu Joseph <prabhujose.ga...@gmail.com<mailto:prabhujose.ga...@gmail.com>> wrote:
+ Spark-Dev On Tue, Feb 9, 2016 at 10:04 AM, Prabhu Joseph <prabhujose.ga...@gmail.com<mailto:prabhujose.ga...@gmail.com>> wrote: Hi All, A long running Spark job on YARN throws below exception after running for few days. yarn.ApplicationMaster: Reporter thread fails 1 time(s) in a row. org.apache.hadoop.yarn.exceptions.YarnException: No AMRMToken found for user prabhu at org.apache.hadoop.yarn.ipc.RPCUtil.getRemoteException(RPCUtil.java:45) Do any of the below renew the AMRMToken and solve the issue 1. yarn-resourcemanager.delegation.token.max-lifetime increase from 7 days 2. Configuring Proxy user: <property> <name>hadoop.proxyuser.yarn.hosts</name> <value>*</value> </property> <property> <name>hadoop.proxyuser.yarn.groups</name> <value>*</value> </property> wouldnt do that: security issues 3. Can Spark-1.4.0 handle with fix https://issues.apache.org/jira/browse/SPARK-5342 spark.yarn.credentials.file I'll say "maybe" there How to renew the AMRMToken for a long running job on YARN? AMRM token renewal should be automatic in AM; Yarn sends a message to the AM (actually an allocate() response with no containers but a new token at the tail of the message. i don't see any logging in the Hadoopp code there (AMRMClientImpl); filed YARN-4682 to add a log statement if someone other than me were to supply a patch to that JIRA to add a log statement *by the end of the day* I'll review it and get it in to Hadoop 2.8 -Steve
