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The writing styles at few places were not in compliance with the OpenStack writing style as mentioned in http://docs.openstack.org/contributor-guide/writing-style /general-writing-guidelines.html. This patch changes the heading styles and adds a few other minor changes in the documents. Change-Id: I0d90ba32ddcef0427b1dc4358206210f166e798a Partial-Implements: blueprint mistral-doc
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Architecture
- Engine - handles control and data flow of workflow executions. Computes which tasks are ready and places them in a queue. Passes the data from task to task, deals with condition transitions, etc.
- Task Executors - execute task Actions. Pick up tasks from the queue, run actions, and send results back to the engine.
- API server - exposes REST API to operate and monitor workflow executions.
- Scheduler - stores and executes delayed calls. It is the important Mistral component since it interacts with engine and executors. It also triggers workflows on events (e.g., periodic cron event)
- Persistence - stores workflow definitions, current execution states, and past execution results.