[MAPREDUCE-5112] Hadoop Mapreduce fails when permission management is enabled and scheduler is FairScheduler

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.4
• Component/s: contrib/fair-share

Environment

Cent0S

• Assignee: Unassigned
• Reporter: Marcos Sousa
• Due: 28/Mar/13
• Created: 28/Mar/13 12:52
• Updated: 29/Aug/13 00:24

Description

I enabled the permission management in my hadoop cluster, but I'm facing a problem sending jobs with pig. This is the scenario:

1 - I have hadoop/hadoop user

2 - I have myuserapp/myuserapp user that runs PIG script.

3 - We setup the path /myapp to be owned by myuserapp

4 - We set pig.temp.dir to /myapp/pig/tmp

But when we pig try to run the jobs we got the following error:

job_201303221059_0009 all_actions,filtered,raw_data DISTINCT Message: Job failed! Error - Job initialization failed: org.apache.hadoop.security.AccessControlException: org.apache.hadoop.security.AccessControlException: Permission denied: user=realtime, access=EXECUTE, inode="system":hadoop:supergroup:rwx------
Hadoop jobtracker requires this permission to statup it's server.

My hadoop policy looks like:

<property>
<name>security.client.datanode.protocol.acl</name>
<value>hadoop,myuserapp supergroup,myuserapp</value>
</property>
<property>
<name>security.inter.tracker.protocol.acl</name>
<value>hadoop,myuserapp supergroup,myuserapp</value>
</property>
<property>
<name>security.job.submission.protocol.acl</name>
<value>hadoop,myuserapp supergroup,myuserapp</value>
<property>
My hdfs-site.xml:

<property>
<name>dfs.permissions</name>
<value>true</value>
</property>

<property>
<name>dfs.datanode.data.dir.perm</name>
<value>755</value>
</property>

<property>
<name>dfs.web.ugi</name>
<value>hadoop,supergroup</value>
</property>
My core site:

...
<property>
<name>hadoop.security.authorization</name>
<value>true</value>
</property>
...
And finally my mapred-site.xml

...
<property>
<name>mapred.local.dir</name>
<value>/tmp/mapred</value>
</property>

<property>
<name>mapreduce.jobtracker.jobhistory.location</name>
<value>/opt/logs/hadoop/history</value>
</property>
<property>
<name>mapred.jobtracker.taskScheduler</name>
<value>org.apache.hadoop.mapred.FairScheduler</value>
</property>

Ps: This works with Capacity Scheduler