Fork detection script - #1968
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…per. Chainstate no longer prints "Stale block received" to debug log (this was meant to be used by the fork detector).
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… banned, and use it in the fork detector
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OBorce
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I've been running this script for a couple of months now, it works reasonably well.
Some unrelated minor changes are also in this PR:
--from_heightin the chainstate dumper was renamed to--from-height, for consistency.unsupported_messagetest in p2p (got the failure in another PR).Edit: I also added a node option to specify custom disconnection reason for banning (fork detector uses banning to prevent itself from testing the same nodes over and over again; normally, banning results in "Your address is banned" being sent as the disconnection reason; this may look somewhat scary for a node operator, so now the fork detector will send a more neutral string - "Cannot accept connections at this moment").