GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/1883
[FLINK-3756] [state] Add state hierarchy to CheckpointCoordinator
This commit introduces a state hierarchy for the StateForTask objects kept
at the CheckpointCoordinator. Task states are now grouped together if they
belong to the same ExecutionJobVertex. The StateForTask objects are now
stored in so called StateForTaskGroup objects. The StateForTaskGroup object
can also store the key group state handles associated to a
ExecutionJobVertex.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink stateHierarchy
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1883.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1883
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commit c9217e7950397e94faadaec31142538311f8c050
Author: Till Rohrmann <trohrm...@apache.org>
Date: 2016-04-08T13:20:06Z
[FLINK-3756] [state] Add state hierarchy to CheckpointCoordinator
This commit introduces a state hierarchy for the StateForTask objects kept
at the CheckpointCoordinator. Task states are now grouped together if they
belong to the same ExecutionJobVertex. The StateForTask objects are now
stored in so called StateForTaskGroup objects. The StateForTaskGroup object
can also store the key group state handles associated to a
ExecutionJobVertex.
Adapt restore methods of CheckpointCoordinator and SavepointCoordinator
Add state size computation
Add comments
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