agresch commented on issue #3153: STORM-3523 revert handling of FNF. Add warning for possible localize… URL: https://github.com/apache/storm/pull/3153#issuecomment-546976008 Added a commit that should prevent deadlocks. The problem is that as workers launch (also the update/cleanup tasks), they use a thread and then block on a compute that waits on a download to complete. If these tasks use all of the threads in the executor service, no threads exist to do a download, so they will deadlock. My solution here is to just guarantee we have at least one thread for tasks and downloads. We should never have blockage then. Updated the thread count to have similar performance to the previous default.
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