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refactor: make bounded recovery observation events replica-scoped

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Carry replica-scoped addressing through bounded recovery planning and completion events so the core no longer depends on a volume-only observation seam. This preserves the current single-replica catch-up and rebuilding behavior while aligning the observation side with the replica-scoped command path.

Made-with: Cursor
This commit is contained in:
pingqiu committed 2026-04-04 09:18:07 -07:00
1 parent b304b8e212
commit 16ba70f856
9 files changed
+174 -40
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sw-block/engine/replication/engine.go
+14 -2
View File
@@ -91,7 +91,7 @@ func (e *CoreEngine) ApplyEvent(ev Event) ApplyResult {
st.Boundary.TargetLSN = v.TargetLSN
}
st.Recovery.Reason = ""
if replicaID, ok := st.recoveryCommandReplicaID(); ok && st.shouldStartCatchUp(replicaID, v.TargetLSN) {
if replicaID, ok := st.recoveryCommandReplicaIDFromEvent(v.ReplicaID); ok && st.shouldStartCatchUp(replicaID, v.TargetLSN) {
cmds = append(cmds, StartCatchUpCommand{
VolumeID: st.VolumeID,
ReplicaID: replicaID,
@@ -152,7 +152,7 @@ func (e *CoreEngine) ApplyEvent(ev Event) ApplyResult {
if v.TargetLSN > st.Boundary.TargetLSN {
st.Boundary.TargetLSN = v.TargetLSN
}
if replicaID, ok := st.recoveryCommandReplicaID(); ok && st.shouldStartRebuild(replicaID, v.TargetLSN) {
if replicaID, ok := st.recoveryCommandReplicaIDFromEvent(v.ReplicaID); ok && st.shouldStartRebuild(replicaID, v.TargetLSN) {
cmds = append(cmds, StartRebuildCommand{
VolumeID: st.VolumeID,
ReplicaID: replicaID,
@@ -458,6 +458,18 @@ func (st *VolumeState) recoveryCommandReplicaID() (string, bool) {
return st.DesiredReplicas[0].ReplicaID, true
}
func (st *VolumeState) recoveryCommandReplicaIDFromEvent(replicaID string) (string, bool) {
if replicaID != "" {
for _, replica := range st.DesiredReplicas {
if replica.ReplicaID == replicaID {
return replicaID, true
}
}
return "", false
}
return st.recoveryCommandReplicaID()
}
func (st *VolumeState) bootstrapReason() string {
switch {
case !st.Readiness.RoleApplied: