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Hudson commented on HDFS-5856: ------------------------------ FAILURE: Integrated in Hadoop-Mapreduce-trunk #1684 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1684/]) HDFS-5856. DataNode.checkDiskError might throw NPE. Contributed by Josh Elser. (suresh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1563064) * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDiskError.java > DataNode.checkDiskError might throw NPE > --------------------------------------- > > Key: HDFS-5856 > URL: https://issues.apache.org/jira/browse/HDFS-5856 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode > Affects Versions: 2.2.0 > Reporter: Josh Elser > Assignee: Josh Elser > Priority: Minor > Fix For: 2.4.0 > > Attachments: HDFS-5856.diff, HDFS-5856.diff > > > Running a small 2.2.0 cluster with a heavy workload. I noticed in the > DataNode log that when faced with network exceptions, I would sometimes get a > NullPointerException from checkDiskError. > Looking at the code, if the Exception that is handed to checkDiskError > contains a null message, the checks that try to identify if the Exception is > network-related will throw a NPE. -- This message was sent by Atlassian JIRA (v6.1.5#6160)