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From "Vinay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2882) DN continues to start up, even if block pool fails to initialize
Date Thu, 21 Nov 2013 10:28:36 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinay updated HDFS-2882:
------------------------

    Attachment: HDFS-2882.patch

latest: Made branch-2 compatible

> DN continues to start up, even if block pool fails to initialize
> ----------------------------------------------------------------
>
>                 Key: HDFS-2882
>                 URL: https://issues.apache.org/jira/browse/HDFS-2882
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.0.2-alpha
>            Reporter: Todd Lipcon
>            Assignee: Vinay
>         Attachments: HDFS-2882.patch, HDFS-2882.patch, HDFS-2882.patch, HDFS-2882.patch,
hdfs-2882.txt
>
>
> I started a DN on a machine that was completely out of space on one of its drives. I
saw the following:
> 2012-02-02 09:56:50,499 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization
failed for block pool Block pool BP-448349972-172.29.5.192-1323816762969 (storage id DS-507718931-172.29.5.194-11072-12978
> 42002148) service to styx01.sf.cloudera.com/172.29.5.192:8021
> java.io.IOException: Mkdirs failed to create /data/1/scratch/todd/styx-datadir/current/BP-448349972-172.29.5.192-1323816762969/tmp
>         at org.apache.hadoop.hdfs.server.datanode.FSDataset$BlockPoolSlice.<init>(FSDataset.java:335)
> but the DN continued to run, spewing NPEs when it tried to do block reports, etc. This
was on the HDFS-1623 branch but may affect trunk as well.



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