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fix(scanner): persist decommission catch-up debt (#6922)

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This commit is contained in:
Zhengchao An
2026-08-31 08:45:36 +08:00
committed by GitHub
parent 602ed2cbcd
commit c4ac11d22e
16 changed files with 4762 additions and 227 deletions
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crates/ecstore/src/runtime/instance.rs
+28 -4
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@@ -368,6 +368,19 @@ impl InstanceContext {
Arc::clone(&self.data_movement_generation_notify)
}
pub(crate) fn observe_durable_data_movement_generation(&self, generation: u64) {
if generation == 0 || self.data_movement_generation_exhausted.load(Ordering::Acquire) {
return;
}
let previous = self.data_movement_generation.fetch_max(generation, Ordering::AcqRel);
if generation == u64::MAX {
self.data_movement_generation_exhausted.store(true, Ordering::Release);
}
if generation > previous {
self.data_movement_generation_notify.notify_waiters();
}
}
pub(crate) fn scanner_publication_state_allowed(&self) -> bool {
!self.data_movement_operation_epoch_exhausted()
&& !self.data_movement_generation_exhausted()
@@ -386,6 +399,20 @@ impl InstanceContext {
}
pub(crate) fn advance_data_movement_operation_epoch(&self) -> u64 {
let (previous, result) = self.advance_data_movement_operation_epoch_only();
if result != previous {
let _ = self.advance_data_movement_generation();
}
result
}
pub(crate) fn advance_data_movement_operation_epoch_to_durable_generation(&self, generation: u64) -> u64 {
let (_, result) = self.advance_data_movement_operation_epoch_only();
self.observe_durable_data_movement_generation(generation);
result
}
fn advance_data_movement_operation_epoch_only(&self) -> (u64, u64) {
self.scanner_publication_state
.store(SCANNER_PUBLICATION_STATE_UNKNOWN, Ordering::Release);
let previous = self.data_movement_operation_epoch.load(Ordering::Acquire);
@@ -396,10 +423,7 @@ impl InstanceContext {
if result == u64::MAX {
self.data_movement_operation_epoch_exhausted.store(true, Ordering::Release);
}
if result != previous {
let _ = self.advance_data_movement_generation();
}
result
(previous, result)
}
/// Advance the movement generation after a durable movement transition.