Niklas Quarfot Nielsen created MESOS-741:
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Summary: Add health checking for tasks
Key: MESOS-741
URL: https://issues.apache.org/jira/browse/MESOS-741
Project: Mesos
Issue Type: Story
Components: master, slave
Reporter: Niklas Quarfot Nielsen
Determining the health of a task during its lifetime (during start up, while it
is running, shutting down etc.) can be considered a more elaborate matter than
only observing its process state.
The task health might be determined by any combination of observable behavior;
for example the process being listening to a certain range of ports, writing
certain files or pipes, responding to messages, utilizing resources to or below
certain thresholds etc.
It could be a powerful extension to extend the interface for launching and
running tasks by an optional HealthCommand message. This message could encode:
1) A command to be run at the slave to determine the health of the task. The
return value of the command will tell if the task is healthy or unhealthy.
2) An interval which to run the health command.
In connection with this, it could make sense to introduce new healthy and
unhealthy task states.
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