Compute Stake Distribution for mainnet

[jpraynaud]

Issue

Use the new cardano-cli query stake-snapshot --all-stake-pools command to compute the stake distribution for mainnet.

🎉 New implementation in Cardano node 8.1.0 has fixed the performance issue

🔥 Previous implementation of this command has performance issues (Cardano node 8.0.0) that must be fixed before release by the Cardano node team: PR IntersectMBO/ouroboros-consensus#92 has been created to fix the problem

Note

This will fix the temporary implementation of the computation of the stake distribution (one pool id at a time) which is working on the preview and preprod network, but that took longer to compute than the duration of an epoch on the mainnet

To do

• Implement new stake distribution computation in the ChainObserver #919 (see note below)
• Upgrade Cardano node to 8.0.0 #920
• Check performance impact of new stake distribution command on the mainnet #962

Later

• Decommission previous version for computing the stake distribution

Note

• Cardano node 1.35.x and 8.0.0 versions have 2 different interfaces for the result of the query stake-snapshot command
• The query stake-snapshot command is used in the 2 methods of computation for the stake distribution in the Mithril nodes (legacy method is explained in this post)
• An unmerged implementation of the Chain Observer with new command has been done in PR 🔥 Test mainnet setup  #782