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* Move some logs to debug level This should reduce the pressure on the file system and RAM without impacting our ability to troubleshoot common issues. * Avoid herd effect watching external channels When we restart, we put watches on every public channel in the network. That creates a lot of RPC calls to bitcoind, which aren't time-sensitive. It's ok if we don't see immediately that an external channel was closed, the spec even recommends waiting for 12 blocks to distinguish a channel close from a splice. By default, we now smooth that over a 1 hour period. This means we should also allow our peers to be late at discovering that a channel was closed. We thus stop sending a `warning` in that case and increase our tolerance to that kind of behavior. * Avoid herd effect watching local channels When we restart, we set watches on our funding transactions. But we don't actually need to watch them immediately, we just need enough time to react to our peer broadcasting their commitment. We use long `cltv_delta` delays to guarantee funds safety, so we can spread out the watches across several blocks to reduce the start-up load. It essentially is the same thing as receiving mempool transactions or blocks after a delay, which is something that our threat model already takes into account. |
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