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https://issues.apache.org/jira/browse/HDFS-7748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387221#comment-14387221
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Hudson commented on HDFS-7748:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #7466 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/7466/])
HDFS-7748. Separate ECN flags from the Status in the DataTransferPipelineAck.
Contributed by Anu Engineer and Haohui Mai. (wheat9: rev
b80457158daf0dc712fbe5695625cc17d70d4bb4)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDataTransferProtocol.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/proto/datatransfer.proto
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/PipelineAck.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DataStreamer.java
> Separate ECN flags from the Status in the DataTransferPipelineAck
> -----------------------------------------------------------------
>
> Key: HDFS-7748
> URL: https://issues.apache.org/jira/browse/HDFS-7748
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Haohui Mai
> Assignee: Anu Engineer
> Priority: Blocker
> Attachments: HDFS-7748.007.patch, hdfs-7748.001.patch,
> hdfs-7748.002.patch, hdfs-7748.003.patch, hdfs-7748.004.patch,
> hdfs-7748.005.patch, hdfs-7748.006.patch, hdfs-7748.branch-2.7.006.patch
>
>
> Prior to the discussions on HDFS-7270, the old clients might fail to talk to
> the newer server when ECN is turned on. This jira proposes to separate the
> ECN flags in a separate protobuf field to make the ack compatible on both
> versions.
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