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Reversion Safety tools for overseer and subsystems (#3104)

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* guide: reversion safety

* guide: manage reversion safety in subsystems

* add leaf status to ActivatedLeaf

* add an LRU-cache to overseer for staleness detection

* update ActivatedLeaf usages in tests to contain status field

* add variant where missed accidentally

* add some helpers to LeafStatus

* address grumbles
This commit is contained in:
Robert Habermeier
2021-05-31 13:54:05 -05:00
committed by GitHub
parent 6b166a7a1f
commit 963993d288
18 changed files with 270 additions and 20 deletions
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polkadot/node/subsystem-util/src/lib.rs
+3 -1
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@@ -868,7 +868,7 @@ mod tests {
use polkadot_node_jaeger as jaeger;
use polkadot_node_subsystem::{
messages::{AllMessages, CandidateSelectionMessage}, ActiveLeavesUpdate, FromOverseer, OverseerSignal,
SpawnedSubsystem, ActivatedLeaf,
SpawnedSubsystem, ActivatedLeaf, LeafStatus,
};
use assert_matches::assert_matches;
use futures::{channel::mpsc, executor, StreamExt, future, Future, FutureExt, SinkExt};
@@ -998,6 +998,7 @@ mod tests {
ActiveLeavesUpdate::start_work(ActivatedLeaf {
hash: relay_parent,
number: 1,
status: LeafStatus::Fresh,
span: Arc::new(jaeger::Span::Disabled),
}),
)))
@@ -1028,6 +1029,7 @@ mod tests {
ActiveLeavesUpdate::start_work(ActivatedLeaf {
hash: relay_parent,
number: 1,
status: LeafStatus::Fresh,
span: Arc::new(jaeger::Span::Disabled),
}),
)))