[STORM-3162] Race condition at updateHeartbeatCache

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: storm-client, storm-core, storm-server
• Labels: pull-request-available
• Assignee: Robert Joseph Evans
• Reporter: Zhengdai Hu
• Created: 27/Jul/18 15:49
• Updated: 15/Apr/19 16:44
• Resolved: 17/Sep/18 20:31

Description

This is discovered during testing for STORM-3133. Travis-CI log can be found here.

Specifically, updateHeartbeatCache can be invoked both by Nimbus (at `Nimbus#updateHeartBeats`) and by Supervisor (at `Nimbubs#updateCachedHeartbeatsFromWorker` at `Nimbus#updateCachedHeartbeatsFromSupervisor`), causing ConcurrentModificationException.

Issue Links

• links to: GitHub Pull Request #2800
• links to: GitHub Pull Request #2800
• links to: GitHub Pull Request #2836