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From "Mukul Kumar Singh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-721) NullPointerException thrown while trying to read a file when datanode restarted
Date Wed, 24 Oct 2018 09:06:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16661966#comment-16661966
] 

Mukul Kumar Singh commented on HDDS-721:
----------------------------------------

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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