Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 49C5117817 for ; Thu, 5 Mar 2015 02:19:37 +0000 (UTC) Received: (qmail 19992 invoked by uid 500); 5 Mar 2015 02:18:38 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 19942 invoked by uid 500); 5 Mar 2015 02:18:38 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 19855 invoked by uid 99); 5 Mar 2015 02:18:38 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 05 Mar 2015 02:18:38 +0000 Date: Thu, 5 Mar 2015 02:18:38 +0000 (UTC) From: "Allen Wittenauer (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-7887) Asynchronous native RPC v9 client MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HDFS-7887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14347992#comment-14347992 ] Allen Wittenauer commented on HDFS-7887: ---------------------------------------- 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)