Coordinated Restore at Checkpoint Exceptions
During the creation of a checkpoint, the system can throw exceptions if an open file or socket prevented the creation of the checkpoint. When a checkpoint can be created successfully, the JVM stops running (default behavior). But in case of a checkpoint exception, the application continues to run.
The possible exceptions can be found in the sources of the project on GitHub.
CheckpointOpenSocketException
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The checkpoint can’t be created because there is a listening socket.
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The exception may be reported several times, for each socket independently.
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The exception message specifies socket local and remote address and port.
CheckpointOpenSocketException: tcp6 localAddr :: localPort 8080 remoteAddr :: remotePort 0