I am working on a custom routing plugin for CLN on a regtest network. My goal is to compare its performance against the classical rebalancing plugin provided by the CLN community.
Now I am trying to test it with zero fees routing. However, I am encountering issues with HTLC execution (even in a classical plugin, so I assume I have some problems in a setup), and payments are failing with various errors like “WIRE_FEE_INSUFFICIENT,” “WIRE_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS,” and “WIRE_TEMPORARY_CHANNEL_FAILURE.” I have already set cltv-delta to 6, fee-base to 0, and htlc-minimum-msat to 0 in my nodes’ configuration and ensured that nodes have sufficient liquidity in its channels for routing.
However, the errors persist. I suspect there might be other factors influencing the HTLC routing process or issues with my plugin’s logic.
Can someone help me troubleshoot this problem and suggest potential reasons for these errors? Is there anything else I should be considering in my custom plugin to ensure smooth HTLC execution?
Thank you in advance!
