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From "Johannes Zillmann (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9509) Fix HFile V1 Detector to handle AccessControlException for non-existant files
Date Tue, 01 Oct 2013 12:40:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782884#comment-13782884
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Johannes Zillmann commented on HBASE-9509:
------------------------------------------

What is "a non-searchable inode" ? Asking because i'm facing a similar issue with HDFS !

> 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
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.98.0, 0.96.0
>
>         Attachments: HBase-9509.patch
>
>
> 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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