[HADOOP-8246] Auto-HA: automatically scope znode by nameservice ID

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Auto Failover (HDFS-3042)
• Fix Version/s: Auto Failover (HDFS-3042)
• Component/s: auto-failover, ha
• Target Version/s: Auto Failover (HDFS-3042)
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 04/Apr/12 05:17
• Updated: 07/Apr/12 23:25
• Resolved: 07/Apr/12 23:25

Description

Talking to some folks who work on operations/deployment, they pointed out that it would make sense to automatically include the nameservice ID in the base znode used for automatic failover. For example, even though the "root znode" is "/hadoop-ha", we should put the znodes for a nameservice "my-ha-cluster" within "/hadoop-ha/my-ha-cluster". This allows federated setups to work with no additional configuration.