Description

I’ve two friends: p1 and p2 operating lightning-core

p1 opened a channel to p2 and p2 opened one other channel to p1.

Now p2 has two channels. One with outbound funding and one with 0. Output of listfunds:

"channels": [      
      {
         "peer_id": "02e7b2196a87513ef322fc2c23d5739ed4ac696a9010a855dbfe7185fe8e133c93",
         "connected": true,
         "state": "CHANNELD_NORMAL",
         "short_channel_id": "2410508x70x0",
         "channel_sat": 0,
         "our_amount_msat": "0msat",
         "channel_total_sat": 113495,
         "amount_msat": "113495000msat",
         "funding_txid": "1f5284dbfcaf76e8a333c1c607465a9474294f43cfbcbbb34504d97aac2189a4",
         "funding_output": 0
      },
      {
         "peer_id": "02e7b2196a87513ef322fc2c23d5739ed4ac696a9010a855dbfe7185fe8e133c93",
         "connected": true,
         "state": "CHANNELD_NORMAL",
         "short_channel_id": "2410509x222x0",
         "channel_sat": 90433,
         "our_amount_msat": "90433000msat",
         "channel_total_sat": 90433,
         "amount_msat": "90433000msat",
         "funding_txid": "befde7cbd4965f21fe9df3a1f06eb1968109a7246457aabed58bfe39f6694b08",
         "funding_output": 0
      }
   ]

Drawback

Now I attempted to pay a 1000msat p1 bill from p2 and get the error:

failed: WIRE_TEMPORARY_CHANNEL_FAILURE (WIRE_TEMPORARY_CHANNEL_FAILURE: Capability exceeded – HTLC price: 183sat)

I believe it is because p2 tries to ship utilizing the not funded channel 2410508x70x0. As a result of if I delete this channel, all works as anticipated.

Questions

• Why does p2 doesn’t auto choose the funded channel?
• Is there a strategy to choose the channel? I didn’t discover an possibility for pay.