mirror of
https://github.com/Xahau/xahaud.git
synced 2025-11-04 02:35:48 +00:00
706ca874b0
This change can help improve the liveness of the network during periods of network instability, by allowing the network to track which validators are presently not online and to disregard them for the purposes of quorum calculations.
79 lines
2.4 KiB
Plaintext
79 lines
2.4 KiB
Plaintext
@startuml negativeUNL_highLevel_sequence
|
|
|
|
skinparam sequenceArrowThickness 2
|
|
skinparam roundcorner 20
|
|
skinparam maxmessagesize 160
|
|
|
|
actor "Rippled Start" as RS
|
|
participant "Timer" as T
|
|
participant "NetworkOPs" as NOP
|
|
participant "ValidatorList" as VL #lightgreen
|
|
participant "Consensus" as GC
|
|
participant "ConsensusAdaptor" as CA #lightgreen
|
|
participant "Validations" as RM #lightgreen
|
|
|
|
RS -> NOP: begin consensus
|
|
activate NOP
|
|
NOP -[#green]> VL: <font color=green>update negative UNL
|
|
hnote over VL#lightgreen: store a copy of\nnegative UNL
|
|
VL -> NOP
|
|
NOP -> VL: update trusted validators
|
|
activate VL
|
|
VL -> VL: re-calculate quorum
|
|
hnote over VL#lightgreen: ignore negative listed validators\nwhen calculate quorum
|
|
VL -> NOP
|
|
deactivate VL
|
|
NOP -> GC: start round
|
|
activate GC
|
|
GC -> GC: phase = OPEN
|
|
GC -> NOP
|
|
deactivate GC
|
|
deactivate NOP
|
|
|
|
loop at regular frequency
|
|
T -> GC: timerEntry
|
|
activate GC
|
|
end
|
|
|
|
alt phase == OPEN
|
|
alt should close ledger
|
|
GC -> GC: phase = ESTABLISH
|
|
GC -> CA: onClose
|
|
activate CA
|
|
alt sqn%256==0
|
|
CA -[#green]> RM: <font color=green>getValidations
|
|
CA -[#green]> CA: <font color=green>create UNLModify Tx
|
|
hnote over CA#lightgreen: use validatations of the last 256 ledgers\nto figure out UNLModify Tx candidates.\nIf any, create UNLModify Tx, and add to TxSet.
|
|
end
|
|
CA -> GC
|
|
GC -> CA: propose
|
|
deactivate CA
|
|
end
|
|
else phase == ESTABLISH
|
|
hnote over GC: receive peer postions
|
|
GC -> GC : update our position
|
|
GC -> CA : propose \n(if position changed)
|
|
GC -> GC : check if have consensus
|
|
alt consensus reached
|
|
GC -> GC: phase = ACCEPT
|
|
GC -> CA : onAccept
|
|
activate CA
|
|
CA -> CA : build LCL
|
|
hnote over CA #lightgreen: copy negative UNL from parent ledger
|
|
alt sqn%256==0
|
|
CA -[#green]> CA: <font color=green>Adjust negative UNL
|
|
CA -[#green]> CA: <font color=green>apply UNLModify Tx
|
|
end
|
|
CA -> CA : validate and send validation message
|
|
activate NOP
|
|
CA -> NOP : end consensus and\n<b>begin next consensus round
|
|
deactivate NOP
|
|
deactivate CA
|
|
hnote over RM: receive validations
|
|
end
|
|
else phase == ACCEPTED
|
|
hnote over GC: timerEntry hash nothing to do at this phase
|
|
end
|
|
deactivate GC
|
|
|
|
@enduml |