Shuai Lin created MESOS-4571:
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             Summary: SlaveRecoveryTest.RecoverStatusUpdateManager is not 
consistent with its description
                 Key: MESOS-4571
                 URL: https://issues.apache.org/jira/browse/MESOS-4571
             Project: Mesos
          Issue Type: Improvement
          Components: tests
            Reporter: Shuai Lin


The description is:
{code}
The slave is killed before the update reaches the scheduler. When the slave 
comes back up it resends the unacknowledged update"
{code}

But in the test code, the {{StatusUpdateMessage}} is dropped, so there is no 
checkpointing for status update involved at all. It's the executor resends the 
unacknowledged status updates when reconnecting, rather than the slave "resends 
the unacknowledged update". This means this test is the same with 
{{SlaveRecoveryTest.ReconnectExecutor}}, which doesn't make sense.

To fix it, we should drop the {{StatusUpdateAcknowledgementMessage}} instead of 
the {{StatusUpdateMessage}}.




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