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From "Inigo Goiri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11078) NPE in LazyPersistFileScrubber
Date Mon, 31 Oct 2016 23:53:58 GMT
Inigo Goiri created HDFS-11078:
----------------------------------

             Summary: NPE in LazyPersistFileScrubber
                 Key: HDFS-11078
                 URL: https://issues.apache.org/jira/browse/HDFS-11078
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Inigo Goiri
            Assignee: Inigo Goiri


If a block is removed, it will be removed from the block map. When the clearCorruptLazyPersistFiles()
tries to delete the block, it may already be deleted and generate a null pointer exception.

java.lang.NullPointerException
                at org.apache.hadoop.hdfs.server.namenode.FSNamesystem$LazyPersistFileScrubber.clearCorruptLazyPersistFiles(FSNamesystem.java:3820)
                at org.apache.hadoop.hdfs.server.namenode.FSNamesystem$LazyPersistFileScrubber.run(FSNamesystem.java:3851)
                at java.lang.Thread.run(Thread.java:745)



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