Try removing dead nodes in the netmap contract #29
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Reference: TrueCloudLab/frostfs-contract#29
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Currently IR removes nodes which do not send bootstrap queries for 3 epochs.
It seems we can implement the same logic in the contract: just update the epoch on each
updateState
/addPeer
call and use the info when forming a snapshot.We have tried this at #31
It isn't ideal: fast epoch ticks can lead to all nodes being removed.