behzad nouri be957f25c9 adds fallback logic if retransmit multicast fails (#17714) ... In retransmit-stage, based on the packet.meta.seed and resulting children/neighbors, each packet is sent to a different set of peers: https://github.com/solana-labs/solana/blob/708bbcb00/core/src/retransmit_stage.rs#L421-L457 However, current code errors out as soon as a multicast call fails, which will skip all the remaining packets: https://github.com/solana-labs/solana/blob/708bbcb00/core/src/retransmit_stage.rs#L467-L470 This can exacerbate packets loss in turbine. This commit: * keeps iterating over retransmit packets for loop even if some intermediate sends fail. * adds a fallback to UdpSocket::send_to if multicast fails. Recent discord chat: https://discord.com/channels/428295358100013066/689412830075551748/849530845052403733		2021-06-04 12:16:37 +00:00
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cluster_info.rs	…
crds_gossip.rs	…
gossip.rs	adds fallback logic if retransmit multicast fails (#17714)	2021-06-04 12:16:37 +00:00