[jira] [Created] (HADOOP-9923) yarn staging area on hdfs has wrong permission and is created by the wrong user

["André Kelpe (JIRA)" <ji...@apache.org>]

André Kelpe created HADOOP-9923:
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             Summary: yarn staging area on hdfs has wrong permission and is created by the wrong user
                 Key: HADOOP-9923
                 URL: https://issues.apache.org/jira/browse/HADOOP-9923
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 2.1.0-beta
            Reporter: André Kelpe


I am setting up a cluster with hadoop 2.1-beta that consists of the following components:

master: runs the namenode, the resourcemanager and the job history server.
hadoop1, hadoop2, hadoop3: run datanodes and node managers

I created 3 system users for the different components, like explained in the docs:

hdfs: runs all things hdfs
yarn: runs all things yarn
mapred: runs the job history server

If I now boot up the cluster, I cannot submit jobs since the yarn staging area permissions do not allow it.

What I found out is, that the job-history-server is creating the staging directory while starting. This first of all causes it to be owned by the wrong user (mapred) and having the wrong permision (770). The docs are not really clear if I am supposed to start hdfs first, then create the staging area by hand and then start the job-history-server or if this is supposed to happen automatically by itself.

In any case, either the docs should be updated or the job-history-server should not create the directory.



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