[HBASE-2098] [EC2] Build a HA cluster

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Later
• Fix Version/s: 0.92.0
• Assignee: Unassigned
• Reporter: Andrew Kyle Purtell
• Created: 08/Jan/10 19:07
• Updated: 20/Nov/15 13:01
• Resolved: 13/May/10 22:14

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.

Issue Links

• is related to: HDFS-839 The NameNode should forward block reports to BackupNode
• is related to: HDFS-976 Hot Standby for NameNode
• is related to: HADOOP-4539 Streaming Edits to a Backup Node.
• is related to: HBASE-1295 Multi data center replication
• is related to: HBASE-2183 Ride over restart