Sporadic issue when restarting a Participant

Hi Folks, I used helix task framework to run several workflows and restarted the participant that held the implemented tasks. Most of the cases in restarts, Helix catches up and continue with last Task but In some cases it prints following error on Controller log and Workflow stops working upon

[jira] [Commented] (HELIX-692) Use map instead of set in controller's message cleanup logic

[ https://issues.apache.org/jira/browse/HELIX-692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16429130#comment-16429130 ] ASF GitHub Bot commented on HELIX-692: -- GitHub user zhan849 opened a pull request:

[jira] [Created] (HELIX-692) Use map instead of set in controller's message cleanup logic

Hao Zhang created HELIX-692: --- Summary: Use map instead of set in controller's message cleanup logic Key: HELIX-692 URL: https://issues.apache.org/jira/browse/HELIX-692 Project: Apache Helix Issue

[GitHub] helix pull request #175: [HELIX-692] use map instead of list to avoid deleti...

GitHub user zhan849 opened a pull request: https://github.com/apache/helix/pull/175 [HELIX-692] use map instead of list to avoid deleting redundant message during cleanup Currently in MessageGenerationPhase, we are using list to store messages to GC. However, pending message is