Improve performance of the app by using parallelism

[yabirgb]

Abstract

Currently we use gevent. It creates greenlets for the different jobs that we perform in the app. This is not a multithread or a multi process logic and performance gets hit. We need to make things happen in parallel. But using the threading library will probably not help due to GIL. So we need to use multiprocessing. This will allow us to move various stuff in different processes and have them run in parallel. Such as:

• Do decoding on multiple chains at the same time
• Have a process only for the api
• Query balances faster
• Have a thread only for the periodic background tasks

Specification

• A related issue to this is that having multiple writters/readers can block the app. We have to complete Database writer process #7272 first