Rajesh Balamohan created HIVE-23210:
---------------------------------------
Summary: Fix shortestjobcomparator when jobs submitted have 1 task
their vertices
Key: HIVE-23210
URL: https://issues.apache.org/jira/browse/HIVE-23210
Project: Hive
Issue Type: Improvement
Reporter: Rajesh Balamohan
In latency sensitive queries, lots of jobs can have vertices with 1 task.
Currently shortestjobcomparator does not work correctly and returns tasks in
random order.
[https://github.com/apache/hive/blob/master/llap-server/src/java/org/apache/hadoop/hive/llap/daemon/impl/comparator/ShortestJobFirstComparator.java#L51]
This causes delay in the job runtime. I will attach a simple test case shortly.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
