Files
solana/core
mergify[bot] 0de1ce0c2c adds fallback logic if retransmit multicast fails (#17714) (#17742)
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

(cherry picked from commit be957f25c9)

Co-authored-by: behzad nouri <behzadnouri@gmail.com>
2021-06-04 16:20:44 +00:00
..
2021-06-02 05:21:14 +00:00