tysonnorris opened a new pull request #3687: Concurrency limit per action
URL: https://github.com/apache/incubator-openwhisk/pull/3687
 
 
   <!--- Provide a concise summary of your changes in the Title -->
   
   ## Description
   <!--- Provide a detailed description of your changes. -->
   <!--- Include details of what problem you are solving and how your changes 
are tested. -->
   After #2795 which only provides system-wider concurrency settings, this will 
allow per-action concurrency limit. 
   
   To use it:
   * specify `whisk.concurrency-limit` configs e.g. 
   ```    
   whisk.concurrency-limit {
           min = 1
           max = 500
           std = 1
       }
   ```
   * enable concurrency in actions using: `"limits":{"concurrency":125}` in the 
action json
   
   In a later PR, additional changes will be useful in cli, e.g. to enable a 
concurrency flag: `wsk action create --concurrency 125` 
   
   ## Related issue and scope
   <!--- Please include a link to a related issue if there is one. -->
   - [ ] I opened an issue to propose and discuss this change (#????)
   
   ## My changes affect the following components
   <!--- Select below all system components are affected by your change. -->
   <!--- Enter an `x` in all applicable boxes. -->
   - [ ] API
   - [x] Controller
   - [ ] Message Bus (e.g., Kafka)
   - [ ] Loadbalancer
   - [x] Invoker
   - [ ] Intrinsic actions (e.g., sequences, conductors)
   - [ ] Data stores (e.g., CouchDB)
   - [ ] Tests
   - [ ] Deployment
   - [ ] CLI
   - [ ] General tooling
   - [ ] Documentation
   
   ## Types of changes
   <!--- What types of changes does your code introduce? Use `x` in all the 
boxes that apply: -->
   - [ ] Bug fix (generally a non-breaking change which closes an issue).
   - [x] Enhancement or new feature (adds new functionality).
   - [ ] Breaking change (a bug fix or enhancement which changes existing 
behavior).
   
   ## Checklist:
   <!--- Please review the points below which help you make sure you've covered 
all aspects of the change you're making. -->
   
   - [x] I signed an [Apache 
CLA](https://github.com/apache/incubator-openwhisk/blob/master/CONTRIBUTING.md).
   - [x] I reviewed the [style 
guides](https://github.com/apache/incubator-openwhisk/wiki/Contributing:-Git-guidelines#code-readiness)
 and followed the recommendations (Travis CI will check :).
   - [ ] I added tests to cover my changes.
   - [ ] My changes require further changes to the documentation.
   - [ ] I updated the documentation where necessary.
   
   

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