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From "Zhanwei.Wang (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3100) failed to append data using webhdfs
Date Thu, 15 Mar 2012 19:08:37 GMT
failed to append data using webhdfs
-----------------------------------

                 Key: HDFS-3100
                 URL: https://issues.apache.org/jira/browse/HDFS-3100
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 0.23.1
            Reporter: Zhanwei.Wang



STEP:
1, deploy a single node hdfs  0.23.1 cluster and configure hdfs as:
A) enable webhdfs
B) enable append
C) disable permissions
2, start hdfs
3, run the test script as attached

RESULT:
expected: a file named testFile should be created and populated with 32K * 5000 zeros, HDFS
should be OK.
I got: script cannot be finished, file has been created but not be populated as expected,
actually append operation failed.

Datanode log shows that, blockscaner report a bad replica and nanenode decide to delete it.
Since it is a single node cluster, append fail. It makes no sense that the script failed every
time.

Datanode and Namenode logs are attached.

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