Neil Conway created MESOS-4050:
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Summary: Change task reconciliation not omit unknown tasks
Key: MESOS-4050
URL: https://issues.apache.org/jira/browse/MESOS-4050
Project: Mesos
Issue Type: Improvement
Components: framework, master
Reporter: Neil Conway
If a framework tries to reconcile the state of a task that is in an unknown
state (because the agent running the task is partitioned from the master), the
master will _not_ include any information about that task.
This is confusing for framework authors. It seems better for the master to
announce all the information it has explicitly: e.g., to return "task X is in
an unknown state", rather than not returning anything. Then as more information
arrives (e.g., task returns or task definitively dies), task state would
transition appropriately.
This might be consistent with changing the task states so that we capture "task
is partitioned" as an explicit task state ({{TASK_UNKNOWN}} or
{{TASK_WANDERING}}) -- see MESOS-4049.
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