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https://issues.apache.org/jira/browse/HDFS-7885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14351595#comment-14351595
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Hudson commented on HDFS-7885:
------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk #2057 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/2057/])
HDFS-7885. Datanode should not trust the generation stamp provided by client.
Contributed by Tsz Wo Nicholas Sze. (jing9: rev
24db0812be64e83a48ade01fc1eaaeaedad4dec0)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestBlockReaderLocalLegacy.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
> Datanode should not trust the generation stamp provided by client
> -----------------------------------------------------------------
>
> Key: HDFS-7885
> URL: https://issues.apache.org/jira/browse/HDFS-7885
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.2.0
> Reporter: vitthal (Suhas) Gogate
> Assignee: Tsz Wo Nicholas Sze
> Priority: Critical
> Fix For: 2.7.0
>
> Attachments: h7885_20150305.patch, h7885_20150306.patch
>
>
> Datanode should not trust the generation stamp provided by client, since it
> is prefetched and buffered in client, and concurrent append may increase it.
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