THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Solution would be to introduce new (or extend existing) thread monitoring to monitor async writer thread, and report warning (or fatal) level alert in case thread is stack more then 15 seconds. Additional info could be number of events in the async queue.
Draft proposal of possible implementation: https://github.com/apache/geode/pull/7574
Changes and Additions to Public Interfaces
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