Roshan Naik created STORM-2871:
----------------------------------
Summary: Performance optimizations for getOutgoingTasks
Key: STORM-2871
URL: https://issues.apache.org/jira/browse/STORM-2871
Project: Apache Storm
Issue Type: Improvement
Reporter: Roshan Naik
Task.getOutgoingTasks() is in critical messaging path. Two observed bottlenecks
in it :
-[Looking up HashMap|] 'streamToGroupers'. Need to look into converting HashMap
into Array lookup ?
-
[outTasks.addAll(compTasks)|https://github.com/apache/storm/blob/master/storm-client/src/jvm/org/apache/storm/daemon/Task.java#L139]
seems to be impacting throughput as well. Identified by .. running
ConstSpoutNullBoltTopo with 1 spout & bolt paralllelism (no Ack) and replacing
this line with hard coded logic to add the single known bolt's taskID.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
