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https://issues.apache.org/jira/browse/HDFS-9515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15062938#comment-15062938
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Wei-Chiu Chuang commented on HDFS-9515:
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Thanks [~arpitagarwal] for reviewing this huge patch!
> NPE when MiniDFSCluster#shutdown is invoked on uninitialized reference
> ----------------------------------------------------------------------
>
> Key: HDFS-9515
> URL: https://issues.apache.org/jira/browse/HDFS-9515
> Project: Hadoop HDFS
> Issue Type: Bug
> Environment: Jenkins
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Minor
> Fix For: 2.8.0
>
> Attachments: HDFS-9515.001.patch, HDFS-9515.002.patch,
> HDFS-9515.003.patch, HDFS-9515.004.patch, HDFS-9515.005.patch
>
>
> If MiniDFSCluster constructor throws an exception, the cluster object is not
> assigned, so shutdown() call not be called on the object.
> I saw in a recent Jenkins job where binding error threw an exception, and
> later on the NPE of cluster.shutdown() hid the real cause of the test failure.
> HDFS-9333 has a patch that fixes the bind error.
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