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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/01/25 21:48:00 UTC
[jira] [Updated] (HDFS-15790) Make ProtobufRpcEngineProtos and
ProtobufRpcEngineProtos2 Co-Exist
[ https://issues.apache.org/jira/browse/HDFS-15790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDFS-15790:
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Labels: pull-request-available (was: )
> Make ProtobufRpcEngineProtos and ProtobufRpcEngineProtos2 Co-Exist
> ------------------------------------------------------------------
>
> Key: HDFS-15790
> URL: https://issues.apache.org/jira/browse/HDFS-15790
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Changing from Protobuf 2 to Protobuf 3 broke some stuff in Apache Hive project. This was not an awesome thing to do between minor versions in regards to backwards compatibility for downstream projects.
> Additionally, these two frameworks are not drop-in replacements, they have some differences. Also, Protobuf 2 is not deprecated or anything so let us have both protocols available at the same time. In Hadoop 4.x Protobuf 2 support can be dropped.
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