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From "Tsuyoshi Ozawa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13363) Upgrade protobuf from 2.5.0 to something newer
Date Fri, 15 Sep 2017 02:03:01 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16167229#comment-16167229
] 

Tsuyoshi Ozawa commented on HADOOP-13363:
-----------------------------------------

{quote}
 We need wire-compatibility no matter when we upgrade, whether it's from 2.x to 3.0, or 2.x
to 3.1.
{quote}

How can we ensure it? My first thought to ensure this is to run cluster with protobuf 3.x
cluster jar and clients with protobuf 2.x jar.

By the way, the current latest version of protobuf seems to be v3.4.0. 
https://github.com/google/protobuf/releases

> Upgrade protobuf from 2.5.0 to something newer
> ----------------------------------------------
>
>                 Key: HADOOP-13363
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13363
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>    Affects Versions: 3.0.0-alpha1, 3.0.0-alpha2
>            Reporter: Allen Wittenauer
>            Assignee: Tsuyoshi Ozawa
>         Attachments: HADOOP-13363.001.patch, HADOOP-13363.002.patch, HADOOP-13363.003.patch,
HADOOP-13363.004.patch, HADOOP-13363.005.patch
>
>
> Standard protobuf 2.5.0 does not work properly on many platforms.  (See, for example,
https://gist.github.com/BennettSmith/7111094 ).  In order for us to avoid crazy work arounds
in the build environment and the fact that 2.5.0 is starting to slowly disappear as a standard
install-able package for even Linux/x86, we need to either upgrade or self bundle or something
else.



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