[AMBARI-4787] /var/lib/hadoop-hdfs/ location does not has +x permission for others

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0
• Fix Version/s: 1.5.0
• Component/s: ambari-agent
• Assignee: Vitaly Brodetskyi
• Reporter: Vitaly Brodetskyi
• Created: 21/Feb/14 18:22
• Updated: 21/Feb/14 18:44
• Resolved: 21/Feb/14 18:44

Description

The file defined by dfs.domain.socket.path must give +x permission for other user.

<property>
<name>dfs.domain.socket.path</name>
<value>/var/lib/hadoop-hdfs/dn_socket</value>
</property>

Currently, In ambari installed cluster, /var/lib/hadoop-hdfs does not give +x permission to other user

[root@ambari-sec-1392876050-hdfs-re-8 ~]# stat /var/lib/hadoop-hdfs/
  File: `/var/lib/hadoop-hdfs/'
  Size: 4096      	Blocks: 8          IO Block: 4096   directory
Device: 803h/2051d	Inode: 1182008     Links: 3
Access: (0750/drwxr-x---)  Uid: ( 1005/    hdfs)   Gid: (  500/  hadoop)
Access: 2014-02-18 18:10:35.000000000 -0800
Modify: 2014-02-20 07:50:55.274766162 -0800
Change: 2014-02-20 07:50:55.274766162 -0800

Due to this Issue, hadoop commands are seeing below WARN messages.

2014-02-18 05:54:32,734|beaver.machine|INFO|RUNNING: /usr/bin/hdfs dfs -tail /user/hrt_qa/hdfsRegressionData/smallFiles/smallRDFile755
2014-02-18 05:54:35,528|beaver.machine|INFO|14/02/18 05:54:35 WARN hdfs.BlockReaderLocal: error creating DomainSocket
2014-02-18 05:54:35,528|beaver.machine|INFO|java.net.ConnectException: connect(2) error: Permission denied when trying to connect to '/var/lib/hadoop-hdfs/dn_socket'
2014-02-18 05:54:35,528|beaver.machine|INFO|at org.apache.hadoop.net.unix.DomainSocket.connect0(Native Method)
2014-02-18 05:54:35,529|beaver.machine|INFO|at org.apache.hadoop.net.unix.DomainSocket.connect(DomainSocket.java:250)
2014-02-18 05:54:35,529|beaver.machine|INFO|at org.apache.hadoop.hdfs.DomainSocketFactory.createSocket(DomainSocketFactory.java:158)
2014-02-18 05:54:35,529|beaver.machine|INFO|at org.apache.hadoop.hdfs.BlockReaderFactory.nextDomainPeer(BlockReaderFactory.java:691)
2014-02-18 05:54:35,529|beaver.machine|INFO|at org.apache.hadoop.hdfs.BlockReaderFactory.createShortCircuitReplicaInfo(BlockReaderFactory.java:439)
2014-02-18 05:54:35,529|beaver.machine|INFO|at org.apache.hadoop.hdfs.client.ShortCircuitCache.create(ShortCircuitCache.java:669)

The expected Permissions on this location is as below.

[root@ambari-sec-1392876050-yarn-10 ~]# stat /var/lib/hadoop-hdfs/
  File: `/var/lib/hadoop-hdfs/'
  Size: 4096      	Blocks: 8          IO Block: 4096   directory
Device: 803h/2051d	Inode: 1181767     Links: 3
Access: (0751/drwxr-x--x)  Uid: ( 1005/    hdfs)   Gid: (  500/  hadoop)
Access: 2014-02-20 18:00:06.586040913 -0800
Modify: 2014-02-20 07:06:28.267889888 -0800
Change: 2014-02-20 17:59:56.629052410 -0800

Issue Links

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