Gilbert Song created MESOS-6150:
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Summary: Introduce the new isolator recover interface for nested
container support.
Key: MESOS-6150
URL: https://issues.apache.org/jira/browse/MESOS-6150
Project: Mesos
Issue Type: Task
Components: isolation
Reporter: Gilbert Song
Assignee: Gilbert Song
Currently, the isolator::recover include two parameters:
1. The list of ContainerState, which are the checkpointed conttainers.
2. The hashset of orphans, which are returned from the launcher::recover.
However, to support nested containers in Mesos Pod, this interface is not
sufficient. Because unknown nested containers may exist under either the top
level alive container or orphan container. We have to include a full list of
unknown containers which includes containers from all hierarchy.
We could have added a 3rd parameter to the isolator::recover interface, to
guarantee the backward compatibility. However, considering the potential
interface changes in the future work and the old orphan hashset should be
deprecated, it is the right time to introduce a new protobuf message
`ContainerRecoverInfo` for isolator::recover(), which wraps all information for
isolators to recover containers.
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