[APEXCORE-474] Unifier placement during M*1 deployment

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.5.0
• Assignee: Sandesh Hegde
• Reporter: Sandesh Hegde
• Created: 23/Jun/16 21:07
• Updated: 10/Dec/16 18:42
• Resolved: 03/Oct/16 18:45

Description

During M*1 deployment, unifier was deployed in the separate container. But there is no advantage in doing that.

It is better to make the unifier THREAD_LOCAL with the downstream operator.
( https://issues.apache.org/jira/browse/APEXCORE-482 )

Note:

Recently saw one Kafka ETL app, that had a total of 18 containers allocated, but out of that 5 containers were allocated for default unifiers. It also means, lots of time is spent in SerDe.

Implementing this feature will improve the performance greatly.

Issue Links

• links to: GitHub Pull Request #378
• links to: GitHub Pull Request #395