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https://issues.apache.org/jira/browse/HADOOP-19864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18090612#comment-18090612
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Steve Loughran commented on HADOOP-19864:
-----------------------------------------
need to unseratnd what's in 3.5.x here. Trunk has
{code}
4b224cdedcf HADOOP-19864 Followup: rejection of unregistered protocols. (#8470)
(2026-05-09 18:18:13 +0100)
f6182e5680c HADOOP-19864. (Followup) Migrate MiniRPCBenchmark to
ProtobufRpcEngine2 (#8455) (2026-04-24 19:37:27 +0800)
998bf0afd79 HADOOP-19864. Cut WritableRPCEngine (#8433) (2026-04-23 14:18:56
+0100)
{code}
3.4.x has the " rejection of unregistered protocols"; I don't see any of these
in 3.5.x
I propose wer add all but the actual incompatible "Cut WritableRPCEngine
(#8433) " as that breaks shipping Tez releases
> Cut WritableRPCEngine
> ---------------------
>
> Key: HADOOP-19864
> URL: https://issues.apache.org/jira/browse/HADOOP-19864
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 3.6.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.6.0
>
>
> Cut {{WritableRpcEngine}} from the code
> It's been obsolete for over a decade, with MAPREDUCE-6706 not needed
> internally.
> Tez still uses it (TEZ-4708 ) so this removal will be incompatible for them.
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