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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5401) Fix NPE in Directory Scanner for HDFS-2832
Date Mon, 11 Nov 2013 06:56:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arpit Agarwal updated HDFS-5401:
--------------------------------

    Summary: Fix NPE in Directory Scanner for HDFS-2832  (was: Fix NPE in Directory Scanner)

> Fix NPE in Directory Scanner for HDFS-2832
> ------------------------------------------
>
>                 Key: HDFS-5401
>                 URL: https://issues.apache.org/jira/browse/HDFS-5401
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: Heterogeneous Storage (HDFS-2832)
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>             Fix For: Heterogeneous Storage (HDFS-2832)
>
>         Attachments: h5401.01.patch
>
>
> Directory scanner is broken by previous changes, NPE exposed by TestDirectoryScanner
> {code}
> testDirectoryScanner(org.apache.hadoop.hdfs.server.datanode.TestDirectoryScanner)  Time
elapsed: 27.417 sec  <<< ERROR!
> java.lang.NullPointerException: null
>         at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.checkAndUpdate(FsDatasetImpl.java:1419)
>         at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.reconcile(DirectoryScanner.java:405)
>         at org.apache.hadoop.hdfs.server.datanode.TestDirectoryScanner.scan(TestDirectoryScanner.java:212)
>         at org.apache.hadoop.hdfs.server.datanode.TestDirectoryScanner.runTest(TestDirectoryScanner.java:270)
>         at org.ap
> {code}



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