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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6232) OfflineEditsViewer throws a NPE on edits containing ACL modifications
Date Fri, 11 Apr 2014 06:21:14 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Akira AJISAKA updated HDFS-6232:
--------------------------------

    Attachment: HDFS-6232.patch

> OfflineEditsViewer throws a NPE on edits containing ACL modifications
> ---------------------------------------------------------------------
>
>                 Key: HDFS-6232
>                 URL: https://issues.apache.org/jira/browse/HDFS-6232
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 3.0.0, 2.4.0
>            Reporter: Stephen Chu
>            Assignee: Akira AJISAKA
>         Attachments: HDFS-6232.patch
>
>
> The OfflineEditsViewer using the XML parser will through a NPE when using an edit with
a SET_ACL op.
> {code}
> [root@hdfs-nfs current]# hdfs oev -i edits_0000000000000000001-0000000000000000007 -o
fsedits.out
> 14/04/10 14:14:18 ERROR offlineEditsViewer.OfflineEditsBinaryLoader: Got RuntimeException
at position 505
> Encountered exception. Exiting: null
> java.lang.NullPointerException
> 	at org.apache.hadoop.hdfs.util.XMLUtils.mangleXmlString(XMLUtils.java:122)
> 	at org.apache.hadoop.hdfs.util.XMLUtils.addSaxString(XMLUtils.java:193)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.appendAclEntriesToXml(FSEditLogOp.java:4085)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.access$3300(FSEditLogOp.java:132)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$SetAclOp.toXml(FSEditLogOp.java:3528)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.outputToXml(FSEditLogOp.java:3928)
> 	at org.apache.hadoop.hdfs.tools.offlineEditsViewer.XmlEditsVisitor.visitOp(XmlEditsVisitor.java:116)
> 	at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsBinaryLoader.loadEdits(OfflineEditsBinaryLoader.java:80)
> 	at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.go(OfflineEditsViewer.java:142)
> 	at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.run(OfflineEditsViewer.java:228)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> 	at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.main(OfflineEditsViewer.java:237)
> [root@hdfs-nfs current]# 
> {code}
> This is reproducible by setting an acl on a file and then running the OEV on the editsinprogress
file.
> The stats and binary parsers run OK.



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