🚑️ Use only the WasmExecutor

[lrazovic]

What?

• The node should only allow the WASM execution: Stop using the native runtime. encointer/encointer-parachain#221

Why?

• After the latest runtime upgrade we encountered several synchronisation problems between nodes because some nodes used a native runtime different from the canonical one (the WASM one).

the native runtime is compiled natively into the node and brings some better performance than the wasm runtime. However, when you upgrade the runtime on chain you always send the wasm runtime. The wasm runtime is the canonical one.

src: https://substrate.stackexchange.com/a/153/3722

[JuaniRios]

Small NIT.

Can't judge the logic of this change since I'm not familiar with the node logic, but I guess we trust Basti's fix in Encointer per the link given. This seems 1 to 1 their change

[vstam1]

Like Juan said, do not 100% understand the logic, but looks like 1 to 1 with encointer. What is the best way to test this change? Running new node? Upgrading our nodes?

[lrazovic]

Like Juan said, do not 100% understand the logic, but looks like 1 to 1 with encointer. What is the best way to test this change? Running new node? Upgrading our nodes?

We can:

• Upgrade all the Politest nodes.
• Upgrade half of the Rolimec nodes.
• Perform a runtime upgrade on Politest.
• Perform a runtime upgrade on Rolimec.

If we encounter any issues, we can revert these changes and consider alternative solutions. I've already successfully synced a Polimec RPC node from scratch, and it seems to be working fine.

[vstam1]

Alright lets merge and keep track of the upgrade process to see if we encounter problems!