Return-Path: X-Original-To: apmail-hbase-dev-archive@www.apache.org Delivered-To: apmail-hbase-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id E753E179AA for ; Fri, 10 Apr 2015 18:58:13 +0000 (UTC) Received: (qmail 77730 invoked by uid 500); 10 Apr 2015 18:58:13 -0000 Delivered-To: apmail-hbase-dev-archive@hbase.apache.org Received: (qmail 77480 invoked by uid 500); 10 Apr 2015 18:58:13 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 77279 invoked by uid 99); 10 Apr 2015 18:58:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 10 Apr 2015 18:58:12 +0000 Date: Fri, 10 Apr 2015 18:58:12 +0000 (UTC) From: "Enis Soztutar (JIRA)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HBASE-13453) Master should not bind to region server ports MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Enis Soztutar created HBASE-13453: ------------------------------------- Summary: Master should not bind to region server ports Key: HBASE-13453 URL: https://issues.apache.org/jira/browse/HBASE-13453 Project: HBase Issue Type: Improvement Reporter: Enis Soztutar Assignee: Devaraj Das Priority: Critical Fix For: 2.0.0, 1.1.0 In 1.0, master by default binds to the region server ports (rpc and info). We have done it so thinking that in the long term, master and meta co-location will be default, and we can merge the master and region server as a single daemon. Over at HBASE-11165, if the conclusion end up being that meta will not be colocated at all, then master hosting a region server will just become an implementation detail. [~saint.ack@gmail.com] says that we might never allow master to host regions. Now, we are stuck in a state where we have made master bind to RS ports in 1.0, which might create some confusion (and frustration) for small cluster users who traditionally used to host a master and a region server on the same node. I think we should undo this in 1.1 and use the previous master ports (16000) and not bind to 16030, so that the user does not need to do anything to bring up a RS on the same host. At least users going from 0.98 -> 1.1 will not take a hit. Users going from 1.0 -> 1.1 will see changed default ports. -- This message was sent by Atlassian JIRA (v6.3.4#6332)