great, that helps. I think I understand the problem. HRTR is calling notification on attached listeners while still holding the `statusLock` , those listener's reaction ends up doing something that needs `statusLock` . Solution would be to call the listeners without holding `statusLock` . which means `TaskRunnerUtils.notifyXX` should be called outside the lock. It has the mechanism to run listener in an executor service, but it appears `SameThreadExecutor` is used everywhere. I will raise a PR sometime soon.
[ Full content available at: https://github.com/apache/incubator-druid/issues/6201 ] This message was relayed via gitbox.apache.org for [email protected]
