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If a flow is started with a client id, do not delete it from the database. Instead, set the status to `KILLED` and store a `KilledFlowException` in the database. Keeping it around allows it to be reattached to using the same mechanisms as active, completed or failed flows. Furthermore, without this change it could be possible for a flow to be triggered again if killed while the reconnecting rpc client is being used. If there is no client id related to the flow, then kill flow keeps its original behaviour of deleting all traces of the flow. Flows cannot be killed if they are `COMPLETED`, `FAILED` or `KILLED` already. Logs have been added if requests to kill flows in these statuses are made. Do not update the status + persist the exception if the flow was killed during flow initialisation (before persisting its first checkpoint). Remove the client id mapping if the flow was killed and did not persist its original checkpoint.
Corda
Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.
Features
- Smart contracts that can be written in Java and other JVM languages
- Flow framework to manage communication and negotiation between participants
- Peer-to-peer network of nodes
- "Notary" infrastructure to validate uniqueness and sequencing of transactions without global broadcast
- Enables the development and deployment of distributed apps called CorDapps
- Written in Kotlin, targeting the JVM
Getting started
- Read the Getting Started documentation
- Run the Example CorDapp
- Read about Corda's Key Concepts
- Follow the Hello, World! tutorial
Useful links
- Project Website
- Mailing List
- Documentation
- Stack Overflow Tag
- Slack Channel
- Meetups
- Training Courses
Contributing
Corda is an open-source project and contributions are welcome!
To find out how to contribute, please see our contributing docs.
License
Acknowledgements
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