Niklas Quarfot Nielsen created MESOS-749:
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Summary: Add support for multiple offers in launchTasks
Key: MESOS-749
URL: https://issues.apache.org/jira/browse/MESOS-749
Project: Mesos
Issue Type: Improvement
Reporter: Niklas Quarfot Nielsen
Assignee: Niklas Quarfot Nielsen
Running tasks on more than one offer (which belong to a single slave) can be
useful in situations with multiple out-standing offers. Currently, only one
offer can be used per launch.
Offer resources can be aggregated and used for traditional task launch.
Feature involves:
- Extending the scheduler API with launchTasks(offers, tasks, filters) with
takes a list of offers and opposed to a single offer.
- Extending LaunchTasksMessage to carry offer list.
- Extend the offer to offer list in call-path from scheduler to master.
- Master applies offer visitors to validate and aggregate offers into a single
resource, before task validation and launch is carried out.
Java and Python interfaces should support both the new and old launchTasks()
for backward compatibility.
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