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https://issues.apache.org/jira/browse/HDFS-3100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Li updated HDFS-3100:
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Attachment: HDFS-3100.patch
Attached patch for the trunk.
> 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: 0.24.0, 0.23.1
> Reporter: Zhanwei.Wang
> Assignee: Brandon Li
> Attachments: HDFS-3100.patch, hadoop-wangzw-datanode-ubuntu.log,
> hadoop-wangzw-namenode-ubuntu.log, test.sh, testAppend.patch
>
>
> 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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