Execute or revert parts of graph

Registered by Ivan Melnikov on 2013-11-22

Engine should be able to split execution graph into several parts (subgraphs), and execute all task from one or several of such parts, or revert all tasks from one or several of such parts.

While not being user-facing feature, this will serve as a basis for implementing several features planned for future releases, including
- smart-revert
- reversion-strategies
- executing or reverting a flow "up to" particular task

Blueprint information

Status:
Complete
Approver:
Joshua Harlow
Priority:
High
Drafter:
Ivan Melnikov
Direction:
Approved
Assignee:
Ivan Melnikov
Definition:
Approved
Series goal:
None
Implementation:
Implemented
Milestone target:
None
Started by
Anastasia Karpinska on 2014-03-28
Completed by
Anastasia Karpinska on 2014-03-28

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/subgraph-execution,n,z

Addressed by: https://review.openstack.org/64111
    Add retry to Flow patterns

Addressed by: https://review.openstack.org/68112
    Add retry action to execute retries

Addressed by: https://review.openstack.org/71621
    Flow smart revert with retry controller

Addressed by: https://review.openstack.org/71013
    Add atom intentions for tasks and retries

Addressed by: https://review.openstack.org/68111
    Extend logbook and storage to work with retry

Addressed by: https://review.openstack.org/68110
    Add base class for Retry

Addressed by: https://review.openstack.org/65475
    Add retry to execution graph

Gerrit topic: https://review.openstack.org/#q,topic:checkpoints,n,z

(?)

Work Items

Dependency tree

* Blueprints in grey have been implemented.

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