rename to ConsumingUpstreamTableOrSource to be clearer

risingwavelabs · Oct 21, 2024 · d3ef9bb · d3ef9bb
1 parent 12b8f3a
commit d3ef9bb
Showing 1 changed file with 23 additions and 15 deletions.
diff --git a/src/stream/src/task/barrier_manager/progress.rs b/src/stream/src/task/barrier_manager/progress.rs
@@ -28,19 +28,21 @@ type ConsumedRows = u64;
 
 #[derive(Debug, Clone, Copy)]
 pub(crate) enum BackfillState {
-    ConsumingUpstreamTable(ConsumedEpoch, ConsumedRows),
-    DoneConsumingUpstreamTable(ConsumedRows),
+    ConsumingUpstreamTableOrSource(ConsumedEpoch, ConsumedRows),
+    DoneConsumingUpstreamTableOrSource(ConsumedRows),
     ConsumingLogStore { pending_barrier_num: usize },
     DoneConsumingLogStore,
 }
 
 impl BackfillState {
     pub fn to_pb(self, actor_id: ActorId) -> PbCreateMviewProgress {
         let (done, consumed_epoch, consumed_rows, pending_barrier_num) = match self {
-            BackfillState::ConsumingUpstreamTable(consumed_epoch, consumed_rows) => {
+            BackfillState::ConsumingUpstreamTableOrSource(consumed_epoch, consumed_rows) => {
                 (false, consumed_epoch, consumed_rows, 0)
             }
-            BackfillState::DoneConsumingUpstreamTable(consumed_rows) => (true, 0, consumed_rows, 0), /* unused field for done */
+            BackfillState::DoneConsumingUpstreamTableOrSource(consumed_rows) => {
+                (true, 0, consumed_rows, 0)
+            } // unused field for done
             BackfillState::ConsumingLogStore {
                 pending_barrier_num,
             } => (false, 0, 0, pending_barrier_num as _),
@@ -59,14 +61,14 @@ impl BackfillState {
 impl Display for BackfillState {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         match self {
-            BackfillState::ConsumingUpstreamTable(epoch, rows) => {
+            BackfillState::ConsumingUpstreamTableOrSource(epoch, rows) => {
                 write!(
                     f,
                     "ConsumingUpstreamTable(epoch: {}, rows: {})",
                     epoch, rows
                 )
             }
-            BackfillState::DoneConsumingUpstreamTable(rows) => {
+            BackfillState::DoneConsumingUpstreamTableOrSource(rows) => {
                 write!(f, "DoneConsumingUpstreamTable(rows: {})", rows)
             }
             BackfillState::ConsumingLogStore {
@@ -190,7 +192,7 @@ impl CreateMviewProgressReporter {
         current_consumed_rows: ConsumedRows,
     ) {
         match self.state {
-            Some(BackfillState::ConsumingUpstreamTable(last, last_consumed_rows)) => {
+            Some(BackfillState::ConsumingUpstreamTableOrSource(last, last_consumed_rows)) => {
                 assert!(
                     last < consumed_epoch,
                     "last_epoch: {:#?} must be greater than consumed epoch: {:#?}",
@@ -209,18 +211,23 @@ impl CreateMviewProgressReporter {
         };
         self.update_inner(
             epoch,
-            BackfillState::ConsumingUpstreamTable(consumed_epoch, current_consumed_rows),
+            BackfillState::ConsumingUpstreamTableOrSource(consumed_epoch, current_consumed_rows),
         );
     }
 
+    /// The difference from [`Self::update`] (MV backfill) is that we
+    /// don't care `ConsumedEpoch` here.
     pub fn update_for_source_backfill(
         &mut self,
         epoch: EpochPair,
         current_consumed_rows: ConsumedRows,
     ) {
         match self.state {
-            Some(BackfillState::ConsumingUpstreamTable(last_epoch, _last_consumed_rows)) => {
-                debug_assert_eq!(last_epoch, 0);
+            Some(BackfillState::ConsumingUpstreamTableOrSource(
+                dummy_last_epoch,
+                _last_consumed_rows,
+            )) => {
+                debug_assert_eq!(dummy_last_epoch, 0);
             }
             Some(state) => {
                 panic!(
@@ -232,19 +239,20 @@ impl CreateMviewProgressReporter {
         };
         self.update_inner(
             epoch,
-            BackfillState::ConsumingUpstreamTable(0, current_consumed_rows),
+            // fill a dummy ConsumedEpoch
+            BackfillState::ConsumingUpstreamTableOrSource(0, current_consumed_rows),
         );
     }
 
     /// Finish the progress. If the progress is already finished, then perform no-op.
     /// `current_epoch` should be provided to locate the barrier under concurrent checkpoint.
     pub fn finish(&mut self, epoch: EpochPair, current_consumed_rows: ConsumedRows) {
-        if let Some(BackfillState::DoneConsumingUpstreamTable(_)) = self.state {
+        if let Some(BackfillState::DoneConsumingUpstreamTableOrSource(_)) = self.state {
             return;
         }
         self.update_inner(
             epoch,
-            BackfillState::DoneConsumingUpstreamTable(current_consumed_rows),
+            BackfillState::DoneConsumingUpstreamTableOrSource(current_consumed_rows),
         );
     }
 
@@ -255,7 +263,7 @@ impl CreateMviewProgressReporter {
     ) {
         assert_matches!(
             self.state,
-            Some(BackfillState::DoneConsumingUpstreamTable(_))
+            Some(BackfillState::DoneConsumingUpstreamTableOrSource(_))
                 | Some(BackfillState::ConsumingLogStore { .. }),
             "cannot update log store progress at state {:?}",
             self.state
@@ -271,7 +279,7 @@ impl CreateMviewProgressReporter {
     pub(crate) fn finish_consuming_log_store(&mut self, epoch: EpochPair) {
         assert_matches!(
             self.state,
-            Some(BackfillState::DoneConsumingUpstreamTable(_))
+            Some(BackfillState::DoneConsumingUpstreamTableOrSource(_))
                 | Some(BackfillState::ConsumingLogStore { .. }),
             "cannot finish log store progress at state {:?}",
             self.state