Mailing-List: contact hbase-dev-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hbase-dev@hadoop.apache.org
Message-ID: <1480631779.127821262978034433.JavaMail.jira@brutus.apache.org>
Date: Fri, 8 Jan 2010 19:13:54 +0000 (UTC)
From: "Andrew Purtell (JIRA)" <jira@apache.org>
To: hbase-dev@hadoop.apache.org
Subject: [jira] Updated: (HBASE-2098) [EC2] Build a HA cluster
In-Reply-To: <2004401399.127731262977674528.JavaMail.jira@brutus.apache.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/HBASE-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell updated HBASE-2098:
----------------------------------

      Description: The Hadoop NameNode is a single point of failure. If the master instance fails, HDFS is down; therefore, HBase as well. So we do not try to deploy HBase in a multimaster configuration for that reason. Instead we colocate the HDFS NameNode and HBase HMaster on the same instance and run with its failure as a known risk. As these EC2 scripts are starter scripts which can (and should) be customized, this is ok, but we can do better. We should deploy a fully fault tolerant Hadoop+HBase cluster as a worked example of how to do it. 
         Priority: Minor  (was: Major)
    Fix Version/s: 0.21.0

> [EC2] Build a HA cluster
> ------------------------
>
>                 Key: HBASE-2098
>                 URL: https://issues.apache.org/jira/browse/HBASE-2098
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.21.0
>
>
> The Hadoop NameNode is a single point of failure. If the master instance fails, HDFS is down; therefore, HBase as well. So we do not try to deploy HBase in a multimaster configuration for that reason. Instead we colocate the HDFS NameNode and HBase HMaster on the same instance and run with its failure as a known risk. As these EC2 scripts are starter scripts which can (and should) be customized, this is ok, but we can do better. We should deploy a fully fault tolerant Hadoop+HBase cluster as a worked example of how to do it. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.