Vinod Kone created MESOS-9210:

             Summary: Mesos v1 scheduler library does not properly handle 
                 Key: MESOS-9210
             Project: Mesos
          Issue Type: Bug
    Affects Versions: 1.6.1, 1.5.1, 1.7.0
            Reporter: Vinod Kone
            Assignee: Till Toenshoff

After the authentication related refactor done as part of 
[,] the state of the scheduler is checked in 
  but it is changed in `_send` 
 As a result, we can have 2 SUBSCRIBE calls in flight at the same time on the 
same connection! This is not good and not spec compliant of a HTTP client that 
is expecting a streaming response.

We need to fix the library to either drop the retried SUBSCRIBE call if one is 
in progress (as it was before the refactor) or close the old connection and 
start a new connection to send the retried SUBSCRIBE call.




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