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https://issues.apache.org/jira/browse/HDFS-7887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14347992#comment-14347992
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Allen Wittenauer commented on HDFS-7887:
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Is this really a good, long term strategy given our use of protobuf now that
gRPC exists?
> Asynchronous native RPC v9 client
> ---------------------------------
>
> Key: HDFS-7887
> URL: https://issues.apache.org/jira/browse/HDFS-7887
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Haohui Mai
> Assignee: Haohui Mai
>
> There are more and more integration happening between Hadoop and applications
> that are implemented using languages other than Java.
> To access Hadoop, applications either have to go through JNI (e.g. libhdfs),
> or to reverse engineer the Hadoop RPC protocol. (e.g. snakebite).
> Unfortunately, neither of them are satisfactory:
> * Integrating with JNI requires running a JVM inside the application. Some
> applications (e.g., real-time processing, MPP database) does not want the
> footprints and GC behavior of the JVM.
> * The Hadoop RPC protocol has a rich feature set including wire encryption,
> SASL, Kerberos authentication. Many 3rd-party implementations can fully cover
> the feature sets thus they might work in limited environment.
> This jira is to propose implementing an Hadoop RPC library in C++ that
> provides a common ground to implement higher-level native client for HDFS,
> YARN, and MapReduce.
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