Thanks Erin, 

The user seems to be properly created.

Cheers,

Laszlo



On 30 Oct 2014, at 17:07, Erin Boyd <[email protected]> wrote:

> I have had this happen when the yarn user doesn't get created right.
> Look to make sure that yarn has a home directory:
> /home/yarn
> 
> Erin
> 
> 
> ----- Original Message -----
> From: "Laszlo Puskas" <[email protected]>
> To: [email protected]
> Sent: Thursday, October 30, 2014 10:04:36 AM
> Subject: Application timeline server doesn't start
> 
> Hi Everyone,
> 
> I am trying to set up and start the application timeline server with Ambari.
> For this i’ve created a blueprint with the appropriate configuration settings.
> (I followed the description here: 
> http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.1.5/bk_system-admin-guide/content/ch_application-timeline-server.html).
>  
> 
> The application history server fails to start due to a permission denied 
> error:
> 
> 2014-10-30 09:06:37,395 ERROR 
> applicationhistoryservice.FileSystemApplicationHistoryStore 
> (FileSystemApplicationHistoryStore.java:serviceInit(123)) - Error when 
> initializing FileSystemHistoryStorage
> org.apache.hadoop.security.AccessControlException: Permission denied: 
> user=yarn, access=WRITE, inode="/":hdfs:hdfs:drwxr-xr-x
>        at 
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkFsPermission(FSPermissionChecker.java:265)
>        at 
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:251)
>        at 
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:232)
> 
> I found a workaround by manually adding the yarn user to the hdfs group.
> 
> Any idea on what’s wrong?
> 
> Ambari version 1.6.0
> Hadoop version: 2.4.0
> 
> Thanks!
> 

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