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Make World State View (WSV) backend modular and add new in-process WSV backend provider.
PROJECT SCOPE
HL Iroha currently uses a separate relational database (PostgreSQL) to store its state. That requires another process to start – so it takes resources and is not very efficient. This project aims to switch from a separate database to a module that would allow storing the state within the same process.
Also, the project aims to not only make the architecture neat but also on improving performance positively. The newly selected database must provide good in-memory cache with disk backed persistent state that can be reliably saved when the block is committed. Also, the database must able to hold big volumes of data which is larger than the RAM can hold.
DELIVERABLES
- Research on what key-value storage solution would work the best for storing WSV
- Approve the researched solution
- Refactor the code to decouple the storage and allow an easier way of changing it
- Execute the approved solution
- Research and analyse the performance affected by the decoupled storage.
- Create a configuration parameter to allow backward compatibility
- Documentation
- Testing
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