Details
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Bug
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Status: Resolved
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Critical
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Resolution: Fixed
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2.0.0
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.