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https://issues.apache.org/jira/browse/HDDS-721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16661966#comment-16661966
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Mukul Kumar Singh commented on HDDS-721:
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This issue has been fixed with HDDS-676.
> NullPointerException thrown while trying to read a file when datanode
> restarted
> -------------------------------------------------------------------------------
>
> Key: HDDS-721
> URL: https://issues.apache.org/jira/browse/HDDS-721
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Datanode
> Affects Versions: 0.3.0
> Reporter: Nilotpal Nandi
> Priority: Critical
> Attachments: all-node-ozone-logs-1540356965.tar.gz
>
>
> steps taken :
> -------------------
> # Put few files and directories using ozonefs
> # stopped all services of cluster.
> # started the scm, om and then datanodes.
> While datanodes were starting up, tried to read a file. Null pointer
> Exception was thrown.
>
> {noformat}
> [root@ctr-e138-1518143905142-544443-01-000003 ~]#
> /root/hadoop_trunk/ozone-0.3.0-SNAPSHOT/bin/ozone fs -ls -R /
> 2018-10-24 04:48:00,703 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes where
> applicable
> drwxrwxrwx - root root 0 2018-10-24 04:12 /testdir1
> -rw-rw-rw- 1 root root 5368709120 1970-02-25 15:29 /testdir1/5GB
> -rw-rw-rw- 1 root root 4798 1970-02-25 15:22 /testdir1/passwd
> drwxrwxrwx - root root 0 2018-10-24 04:46 /testdir3
> [root@ctr-e138-1518143905142-544443-01-000003 ~]#
> /root/hadoop_trunk/ozone-0.3.0-SNAPSHOT/bin/ozone fs -cat
> o3fs://fs-bucket.fs-volume/testdir1/passwd
> 2018-10-24 04:49:24,955 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes where
> applicable
> cat: Exception getting XceiverClient:
> com.google.common.util.concurrent.UncheckedExecutionException:
> java.lang.NullPointerException{noformat}
>
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