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From "Himanshu Vashishtha (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9509) Fix HFile V1 Detector to handle AccessControlException for non-existant files
Date Wed, 11 Sep 2013 20:42:52 GMT
Himanshu Vashishtha created HBASE-9509:
------------------------------------------

             Summary: Fix HFile V1 Detector to handle AccessControlException for non-existant
files
                 Key: HBASE-9509
                 URL: https://issues.apache.org/jira/browse/HBASE-9509
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.96.0
            Reporter: Himanshu Vashishtha
             Fix For: 0.98.0, 0.96.0


On some hadoop versions, fs.exists() throws an AccessControlException if there is a non-searchable
inode in the file path. Versions such as 2.1.0-beta just returns false.
This jira is to fix HFile V1 detector tool to avoid making such calls.

See the below exception when running the tool on one hadoop version
{code}
ERROR util.HFileV1Detector: org.apache.hadoop.security.AccessControlException: Permission
denied: user=hbase, access=EXECUTE, inode="/hbase/.META./.tableinfo.0000000001":hbase:supergroup:-rw-r--r--
	at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:234)
	at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkTraverse(FSPermissionChecker.java:187)
	at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:150)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:5141)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:5123)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkTraverse(FSNamesystem.java:5102)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFileInfo(FSNamesystem.java:3265)
	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getFileInfo(NameNodeRpcServer.java:719)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getFileInfo(ClientNamenodeProtocolServerSideTranslatorPB.java:692)
	at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:59628)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2040)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2036)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1477)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2034)
{code}


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