a. If you see the thread dump, it shows these locked synchronizers
Locked ownable synchronizers:
- <0x00000006da73f540> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
- <0x00000006da73f690> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
- <0x00000006da84add8> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
- <0x00000006da84aee0> (a
If the shutdown is clean, we dont see these locked synchronizers .
Looks like it has registered some state with the server before the shutdown
hook was invoked. Also this registered state is now preventing further
restarts .
b. Even though the log says 'invoking shutdown hook' , the jvm does not
shutdown - it is blocked on starting the ignite.
I will try and see if I can debug more.
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