Benjamin Mahler created MESOS-4066:
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Summary: Expose when agent is recovering in the agent's
/state.json endpoint.
Key: MESOS-4066
URL: https://issues.apache.org/jira/browse/MESOS-4066
Project: Mesos
Issue Type: Task
Components: slave
Reporter: Benjamin Mahler
Currently when a user is hitting /state.json on the agent, it may return
partial state if the agent has failed over and is recovering. There is
currently no clear way to tell if this is the case when looking at a response,
so the user may incorrectly interpret the agent as being empty of tasks.
We could consider exposing the 'state' enum of the agent in the endpoint:
{code}
enum State
{
RECOVERING, // Slave is doing recovery.
DISCONNECTED, // Slave is not connected to the master.
RUNNING, // Slave has (re-)registered.
TERMINATING, // Slave is shutting down.
} state;
{code}
This may be a bit tricky to maintain as far as backwards-compatibility of the
endpoint, if we were to alter this enum.
Exposing this would allow users to be more informed about the state of the
agent.
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