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https://issues.apache.org/jira/browse/HADOOP-12579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15101062#comment-15101062
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Haohui Mai commented on HADOOP-12579:
-------------------------------------
I consider {{WritableRPCEngine}} is dead code. I suggest cleaning up the tests
instead of putting a major functionality ({{WirtableRPCEngine}} in the tests.
> Deprecate and remove WriteableRPCEngine
> ---------------------------------------
>
> Key: HADOOP-12579
> URL: https://issues.apache.org/jira/browse/HADOOP-12579
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Haohui Mai
> Attachments: HADOOP-12579-v1.patch
>
>
> The {{WriteableRPCEninge}} depends on Java's serialization mechanisms for RPC
> requests. Without proper checks, it has be shown that it can lead to security
> vulnerabilities such as remote code execution (e.g., COLLECTIONS-580,
> HADOOP-12577).
> The current implementation has migrated from {{WriteableRPCEngine}} to
> {{ProtobufRPCEngine}} now. This jira proposes to deprecate
> {{WriteableRPCEngine}} in branch-2 and to remove it in trunk.
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