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sync_peer option to specify preferred nodes #1319
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joecaswell
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src/blockchain_worker.erl
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| State#state{sync_pid = Pid, sync_ref = Ref} | ||
| end. | ||
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| get_configured_or_random_peer(SwarmTID) -> | ||
| case get_configured_sync_peer(SwarmTID) of | ||
| undefined-> get_random_peer(SwarmTID); |
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| undefined-> get_random_peer(SwarmTID); | |
| undefined -> get_random_peer(SwarmTID); |
Co-authored-by: Jeff Grunewald <jeff@grunewalddesign.com>
src/blockchain_worker.erl
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| [] -> | ||
| lager:debug("No sync_peers configured"), | ||
| undefined; | ||
| ConfiguredPeers -> |
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| ConfiguredPeers -> | |
| ConfiguredPeers when is_list(ConfiguredPeers) -> |
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As long as we're validating, we should check [P | _] when is_list(P) to make sure it is a list of strings, also should gracefully fail back to random so the node will still try to sync if the config is pooched.
src/blockchain_worker.erl
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| {Left, Right} = lists:split(rand:uniform(length(ConfiguredPeers)), ConfiguredPeers), | ||
| get_configured_sync_peer(SwarmTID, Peerbook, Right ++ Left) |
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is this "cutting the deck" of configured peers so to speak? just a cheaper version of shuffling the list?
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Yes, exactly. We only need one peer, the rest of the list is only used if the chosen one fails to connect.
jeffgrunewald
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Apr 30, 2022
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adds blockchain sync_peers configuration option, accepts a list of string multi-addresses