Lokesh Jain created RATIS-814:

             Summary: High CPU usage by TimeoutScheduler due to JDK bug 
                 Key: RATIS-814
                 URL: https://issues.apache.org/jira/browse/RATIS-814
             Project: Ratis
          Issue Type: Bug
            Reporter: Lokesh Jain
            Assignee: Lokesh Jain

TimeoutScheduler creates an instance of ScheduledThreadPoolExecutor with 0 core 
pool threads. There is a bug in JDK 
[https://bugs.openjdk.java.net/browse/JDK-8129861] which causes high CPU usage 
if ScheduledThreadPoolExecutor is instantiated with 0 core pool threads. The 
bug was fixed in Java 9.

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