Tsz Wo Nicholas Sze created RATIS-396:
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Summary: Support retry if writeStateMachineData throws
TimeoutIOException
Key: RATIS-396
URL: https://issues.apache.org/jira/browse/RATIS-396
Project: Ratis
Issue Type: Improvement
Components: server
Reporter: Tsz Wo Nicholas Sze
Assignee: Tsz Wo Nicholas Sze
If the future from writeStateMachineData throws TimeoutIOException, the
RaftLogWorker will terminate Java VM. In some case, such behavior is
undesirable. For example, the application may want to just shut down Ratis
server but not the entire application.
In this JIRA, we allow retrying on TimeoutIOException. Then, application could
detect no progression if TimeoutIOException happens again and again.
Note that RaftLogWorker has a BlockingQueue with capacity of 4096. If
TimeoutIOException happens again and again, it won't accept further appendEntry
and block the caller.
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