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https://issues.apache.org/jira/browse/HDFS-13539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16474466#comment-16474466
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Hudson commented on HDFS-13539:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14192 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14192/])
HDFS-13539. DFSStripedInputStream NPE when reportCheckSumFailure. (xiao: rev
960940e0e08f7839775f2d8a352b444d104d36b4)
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedInputStream.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSStripedInputStream.java
> DFSStripedInputStream NPE when reportCheckSumFailure
> ----------------------------------------------------
>
> Key: HDFS-13539
> URL: https://issues.apache.org/jira/browse/HDFS-13539
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Priority: Major
> Fix For: 3.2.0, 3.1.1, 3.0.3
>
> Attachments: HDFS-13539.01.patch, HDFS-13539.02.patch
>
>
> We have seem the following exception with DFSStripedInputStream.
> {noformat}
> readDirect: FSDataInputStream#read error:
> NullPointerException: java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.DFSStripedInputStream.readWithStrategy(DFSStripedInputStream.java:402)
> at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:831)
> at
> org.apache.hadoop.fs.FSDataInputStream.read(FSDataInputStream.java:147)
> {noformat}
> Line 402 is {{reportCheckSumFailure}}, and {{currentLocatedBlock}} is the
> only possible null object. (Because {{currentLocatedBlock.getLocations()}}
> cannot be null - {{LocatedBlock}} constructor checks {{locs}} and would
> assign a {{EMPTY_LOCS}} if it's null)
> Original exception is masked by the NPE.
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