[TWILL-104] Enable users to specify a different node than root of Zookeeper for Twill application data

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3.0-incubating, 0.4.0-incubating, 0.5.0-incubating
• Component/s: yarn
• Assignee: Unassigned
• Reporter: Mike Walch
• Created: 21/Oct/14 16:00
• Updated: 21/Oct/14 17:32
• Resolved: 21/Oct/14 17:32

Description

In YarnTwillRunnerService.watchLiveApps(), all child nodes of the Zookeeper root are considered Twill applications and are watched for changes. On a cluster, other non-twill applications could be storing data in the same zookeeper. It would be better if "/twill" was used for the root or if users could specify another root path in Zookeeper for Twill data. Watching the Zookeeper nodes of non-twill applications could be causing the delay seen in TWILL-103.