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https://issues.apache.org/jira/browse/HDFS-17103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17103:
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Labels: pull-request-available (was: )
> messy file system cleanup in TestNameEditsConfigs
> -------------------------------------------------
>
> Key: HDFS-17103
> URL: https://issues.apache.org/jira/browse/HDFS-17103
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ConfX
> Priority: Critical
> Labels: pull-request-available
> Attachments: reproduce.sh
>
>
> h2. What happened:
> Got a {{NullPointerException}} without message when running
> {{{}TestNameEditsConfigs{}}}.
> h2. Where's the bug:
> In line 450 of {{{}TestNameEditsConfigs{}}}, the test attempts to cleanup the
> file system:
>
> {noformat}
> ...
> fileSys = cluster.getFileSystem();
> ...
> } finally {
> fileSys.close();
> cluster.shutdown();
> }{noformat}
> However, the cleanup would result in a {{NullPointerException}} that covers
> up the actual exception if the initialization of {{fileSys}} fails or another
> exception is thrown before the line that initializes {{{}fileSys{}}}.
> h2. How to reproduce:
> (1) Set {{dfs.namenode.maintenance.replication.min}} to {{-1155969698}}
> (2) Run test:
> {{org.apache.hadoop.hdfs.server.namenode.TestNameEditsConfigs#testNameEditsConfigsFailure}}
> h2. Stacktrace:
> {noformat}
> java.lang.NullPointerException,
> at
> org.apache.hadoop.hdfs.server.namenode.TestNameEditsConfigs.testNameEditsConfigsFailure(TestNameEditsConfigs.java:450),{noformat}
> For an easy reproduction, run the reproduce.sh in the attachment.
> We are happy to provide a patch if this issue is confirmed.
>
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