add new command to clean height hint cache. #80
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It was observed that the height hint cache is poisoned leading to unresolved contracts in lnd. This command is a temporary fix for node runners until the real reason for this behaviour is found.
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A new command is introduced to help noderunners suffering from the problem in lightningnetwork/lnd#8028 where for reasons still not known yet the height hint cache for some spending notifications is poisoned with wrong data leading to unrecognized spends. A wrong height hint entry can lead to situations where channels are never resolved internally and the associated funds might also be stuck indefinitely.
This command should be a temporary fix until we find the real reason why invalid height hints are populated in the table.
How to use the new command:
In case you have channels which are still in the waiting_force_close state, just call the command in the following way:
chantools dropheighthintcache --channeldb channel.dbIn case you want to rescan the blockchain for a specific output you need to execute the command in the following way:
chantools dropheighthintcache --channeldb channel.db --chan_point bd278162f9843311f64c76715c7a5c903c0467dc2c9f76af84ecbab00764c8a1:0