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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2882) DN continues to start up, even if block pool fails to initialize
Date Thu, 02 Feb 2012 18:12:55 GMT
DN continues to start up, even if block pool fails to initialize
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                 Key: HDFS-2882
                 URL: https://issues.apache.org/jira/browse/HDFS-2882
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 0.24.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon


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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