Hadoop jobs fail when submitted by users other than yarn (MRv2) or mapred (MRv1)

Question

I am running a test cluster running MRv1 (CDH5) paired with LocalFileSystem, and the only user I am able to run jobs as is mapred (as mapred is the user starting the jobtrac

Answer 1

This worked for me, I just set this property in MR v1:

    hadoop.security.authorization
    simple
  

Please go through this:

Access Control Lists ${HADOOP_CONF_DIR}/hadoop-policy.xml defines an access control list for each Hadoop service. Every access control list has a simple format:

The list of users and groups are both comma separated list of names. The two lists are separated by a space.

Example: user1,user2 group1,group2.

Add a blank at the beginning of the line if only a list of groups is to be provided, equivalently a comman-separated list of users followed by a space or nothing implies only a set of given users.

A special value of * implies that all users are allowed to access the service.

Refreshing Service Level Authorization Configuration The service-level authorization configuration for the NameNode and JobTracker can be changed without restarting either of the Hadoop master daemons. The cluster administrator can change ${HADOOP_CONF_DIR}/hadoop-policy.xml on the master nodes and instruct the NameNode and JobTracker to reload their respective configurations via the -refreshServiceAcl switch to dfsadmin and mradmin commands respectively.

Refresh the service-level authorization configuration for the NameNode:

$ bin/hadoop dfsadmin -refreshServiceAcl

Refresh the service-level authorization configuration for the JobTracker:

$ bin/hadoop mradmin -refreshServiceAcl

Of course, one can use the security.refresh.policy.protocol.acl property in ${HADOOP_CONF_DIR}/hadoop-policy.xml to restrict access to the ability to refresh the service-level authorization configuration to certain users/groups.

Examples Allow only users alice, bob and users in the mapreduce group to submit jobs to the MapReduce cluster:

     security.job.submission.protocol.acl
     alice,bob mapreduce

Allow only DataNodes running as the users who belong to the group datanodes to communicate with the NameNode:

     security.datanode.protocol.acl
     datanodes

Allow any user to talk to the HDFS cluster as a DFSClient:


     security.client.protocol.acl
     *