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https://issues.apache.org/jira/browse/HDFS-2181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119913#comment-13119913
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Sanjay Radia commented on HDFS-2181:
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The following key steps remain after this jira is committed
* HDFS-2400 HDFS wire types are segregated, move the HDFS data types from
o.a.h.hdfs.protocol to o.a.h.hdfs.server.
* HDFS-2399 HDFS wire types are segregated, remove all Writable from HDFS
data type
* HADOOP-7719 On protocol version mismatch, return the list of valid versions
for the requested protocol
* HADOOP-7557 Make IPC and RPC headers be extensible
* Pick the protocol dynamically based on SS's protocol versions. I think this
can wait till later.
I will post patches for Hadoop-7719 and Hadoop-7557 shortly. HDFS-2399 and
HDFS-2400 can probably wait a little till some system testing is done. Indeed
if leave them as it will let us switch back to old ways by a simple 2 line
change in DFSUtil if we need to deal with any serious issues.
> Seperate HDFS wire protocol data types
> --------------------------------------
>
> Key: HDFS-2181
> URL: https://issues.apache.org/jira/browse/HDFS-2181
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
> Attachments: separateDataType1.patch, separateDataType10.patch,
> separateDataType11.patch, separateDataType12.patch, separateDataType13.patch,
> separateDataType14.patch, separateDataType2.patch, separateDataType6.patch,
> separateDataType7.patch, separateDataType8.patch, separateDataType9.patch
>
>
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