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Ship it!




Ship It!

- bhuvnesh chaudhary


On March 25, 2016, 8:50 p.m., Lav Jain wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/45252/
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> 
> (Updated March 25, 2016, 8:50 p.m.)
> 
> 
> Review request for Ambari, Alexander Denissov, Alejandro Fernandez, bhuvnesh 
> chaudhary, Goutam Tadi, Jaimin Jetly, jun aoki, Jayush Luniya, Matt, Newton 
> Alex, and Oleksandr Diachenko.
> 
> 
> Bugs: AMBARI-15542
>     https://issues.apache.org/jira/browse/AMBARI-15542
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> PXF service checks fails on secured cluster
> ```
> 2016-03-11 23:37:35,588 - HdfsResource[None] {'security_enabled': True, 
> 'keytab': '/etc/security/keytabs/hdfs.headless.keytab', 'default_fs': 
> 'hdfs://c6401.ambari.apache.org:8020', 'hdfs_site': ..., 'kinit_path_local': 
> '/usr/bin/kinit', 'principal_name': 'hdfs-...@ambari.apache.org', 'user': 
> 'hdfs', 'action': ['execute']}
> 2016-03-11 23:37:35,588 - Testing PXF HDFS read
> 2016-03-11 23:37:35,675 - Error code: 500
> 2016-03-11 23:37:35,675 - HDFS test Failed: Exception occurred in HDFS test: 
> PXF data read failed: HTTP Error 500: Internal Server Error
> ```
> 
> Pxf log says
> ```
> SEVERE: Servlet.service() for servlet [PXF REST Service] in context with path 
> [/pxf] threw exception [java.io.IOException: Can't get Master Kerberos 
> principal for use as renewer] with root cause
> java.io.IOException: Can't get Master Kerberos principal for use as renewer
>       at 
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:116)
>       at 
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:100)
>       at 
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:80)
>       at 
> org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:206)
>       at 
> org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:315)
>       at 
> org.apache.hawq.pxf.plugins.hdfs.HdfsDataFragmenter.getSplits(HdfsDataFragmenter.java:108)
>       at 
> org.apache.hawq.pxf.plugins.hdfs.HdfsDataFragmenter.getFragments(HdfsDataFragmenter.java:69)
>       at 
> org.apache.hawq.pxf.service.rest.FragmenterResource.getFragments(FragmenterResource.java:84)
> ```
> 
> 
> Diffs
> -----
> 
>   
> ambari-server/src/main/resources/common-services/PXF/3.0.0/package/scripts/params.py
>  eed2d18 
>   
> ambari-server/src/main/resources/common-services/PXF/3.0.0/package/scripts/service_check.py
>  40e6d6f 
> 
> Diff: https://reviews.apache.org/r/45252/diff/
> 
> 
> Testing
> -------
> 
> Tested manually with and without YARN, with and without security.
> 
> 
> Thanks,
> 
> Lav Jain
> 
>

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