feat(meta): make blocking sink default + support background sink

e2e_test/backfill/sink/create_sink.slt

@@ -11,6 +11,9 @@ SET STREAMING_RATE_LIMIT = 1000;
 statement ok
 insert into t select * from generate_series(1, 10000);
 
+statement ok
+SET BACKGROUND_DDL=true;
+
 statement ok
 create sink s as select x.v1 as v1
 from t x join t y

e2e_test/streaming/rate_limit/snapshot_amplification.slt

@@ -17,13 +17,19 @@ INSERT INTO table select 1 from generate_series(1, 100000);
 statement ok
 flush;
 
+statement ok
+SET BACKGROUND_DDL=true;
+
 statement ok
 CREATE SINK sink AS
     SELECT x.i1 as i1 FROM table x
         JOIN table s1 ON x.i1 = s1.i1
             JOIN table s2 ON x.i1 = s2.i1
     WITH (connector = 'blackhole');
 
+statement ok
+SET BACKGROUND_DDL=false;
+
 # Let sink amplify...
 skipif in-memory
 sleep 1s

e2e_test/streaming/rate_limit/upstream_amplification.slt

@@ -18,6 +18,9 @@ WITH (
     datagen.rows.per.second = '10000'
 ) FORMAT PLAIN ENCODE JSON;
 
+statement ok
+SET BACKGROUND_DDL=true;
+
 statement ok
 CREATE SINK sink AS
     SELECT x.i1 as i1 FROM source_table x
@@ -26,6 +29,9 @@ CREATE SINK sink AS
                 JOIN source_table s3 ON x.i1 = s3.i1
     WITH (connector = 'blackhole');
 
+statement ok
+SET BACKGROUND_DDL=false;
+
 # The following sequence of FLUSH should be fast, since barrier should be able to bypass sink.
 # Otherwise, these FLUSH will take a long time to complete, and trigger timeout.
 statement ok

src/connector/src/sink/catalog/desc.rs

@@ -107,7 +107,7 @@ impl SinkDesc {
             target_table: self.target_table,
             created_at_cluster_version: None,
             initialized_at_cluster_version: None,
-            create_type: CreateType::Foreground,
+            create_type: self.create_type,
         }
     }
 

src/meta/src/barrier/command.rs

@@ -23,6 +23,7 @@ use risingwave_common::catalog::TableId;
 use risingwave_common::hash::ActorMapping;
 use risingwave_connector::source::SplitImpl;
 use risingwave_hummock_sdk::HummockEpoch;
+use risingwave_pb::catalog::CreateType;
 use risingwave_pb::meta::table_fragments::PbActorStatus;
 use risingwave_pb::meta::PausedReason;
 use risingwave_pb::source::{ConnectorSplit, ConnectorSplits};
@@ -164,6 +165,7 @@ pub enum Command {
         init_split_assignment: SplitAssignment,
         definition: String,
         ddl_type: DdlType,
+        create_type: CreateType,
         replace_table: Option<ReplaceTablePlan>,
     },
     /// `CancelStreamingJob` command generates a `Stop` barrier including the actors of the given

src/meta/src/barrier/progress.rs

@@ -18,6 +18,7 @@ use std::sync::Arc;
 
 use risingwave_common::catalog::TableId;
 use risingwave_common::util::epoch::Epoch;
+use risingwave_pb::catalog::CreateType;
 use risingwave_pb::ddl_service::DdlProgress;
 use risingwave_pb::hummock::HummockVersionStats;
 use risingwave_pb::stream_service::barrier_complete_response::CreateMviewProgress;
@@ -430,48 +431,56 @@ impl CreateMviewProgressTracker {
             return Some(TrackingJob::New(command));
         }
 
-        let (creating_mv_id, upstream_mv_count, upstream_total_key_count, definition, ddl_type) =
-            if let Command::CreateStreamingJob {
-                table_fragments,
-                dispatchers,
-                upstream_root_actors,
-                definition,
-                ddl_type,
-                ..
-            } = &command.context.command
-            {
-                // Keep track of how many times each upstream MV appears.
-                let mut upstream_mv_count = HashMap::new();
-                for (table_id, actors) in upstream_root_actors {
-                    assert!(!actors.is_empty());
-                    let dispatch_count: usize = dispatchers
-                        .iter()
-                        .filter(|(upstream_actor_id, _)| actors.contains(upstream_actor_id))
-                        .map(|(_, v)| v.len())
-                        .sum();
-                    upstream_mv_count.insert(*table_id, dispatch_count / actors.len());
-                }
-
-                let upstream_total_key_count: u64 = upstream_mv_count
+        let (
+            creating_mv_id,
+            upstream_mv_count,
+            upstream_total_key_count,
+            definition,
+            ddl_type,
+            create_type,
+        ) = if let Command::CreateStreamingJob {
+            table_fragments,
+            dispatchers,
+            upstream_root_actors,
+            definition,
+            ddl_type,
+            create_type,
+            ..
+        } = &command.context.command
+        {
+            // Keep track of how many times each upstream MV appears.
+            let mut upstream_mv_count = HashMap::new();
+            for (table_id, actors) in upstream_root_actors {
+                assert!(!actors.is_empty());
+                let dispatch_count: usize = dispatchers
                     .iter()
-                    .map(|(upstream_mv, count)| {
-                        *count as u64
-                            * version_stats
-                                .table_stats
-                                .get(&upstream_mv.table_id)
-                                .map_or(0, |stat| stat.total_key_count as u64)
-                    })
+                    .filter(|(upstream_actor_id, _)| actors.contains(upstream_actor_id))
+                    .map(|(_, v)| v.len())
                     .sum();
-                (
-                    table_fragments.table_id(),
-                    upstream_mv_count,
-                    upstream_total_key_count,
-                    definition.to_string(),
-                    ddl_type,
-                )
-            } else {
-                unreachable!("Must be CreateStreamingJob.");
-            };
+                upstream_mv_count.insert(*table_id, dispatch_count / actors.len());
+            }
+
+            let upstream_total_key_count: u64 = upstream_mv_count
+                .iter()
+                .map(|(upstream_mv, count)| {
+                    *count as u64
+                        * version_stats
+                            .table_stats
+                            .get(&upstream_mv.table_id)
+                            .map_or(0, |stat| stat.total_key_count as u64)
+                })
+                .sum();
+            (
+                table_fragments.table_id(),
+                upstream_mv_count,
+                upstream_total_key_count,
+                definition.to_string(),
+                ddl_type,
+                create_type,
+            )
+        } else {
+            unreachable!("Must be CreateStreamingJob.");
+        };
 
         for &actor in &actors {
             self.actor_map.insert(actor, creating_mv_id);
@@ -483,7 +492,7 @@ impl CreateMviewProgressTracker {
             upstream_total_key_count,
             definition,
         );
-        if *ddl_type == DdlType::Sink {
+        if *ddl_type == DdlType::Sink && *create_type == CreateType::Background {
             // We return the original tracking job immediately.
             // This is because sink can be decoupled with backfill progress.
             // We don't need to wait for sink to finish backfill.

src/meta/src/manager/streaming_job.rs

@@ -290,6 +290,7 @@ impl StreamingJob {
             Self::MaterializedView(table) => {
                 table.get_create_type().unwrap_or(CreateType::Foreground)
             }
+            Self::Sink(s, _) => s.get_create_type().unwrap_or(CreateType::Foreground),
             _ => CreateType::Foreground,
         }
     }

src/meta/src/stream/stream_manager.rs

@@ -461,6 +461,7 @@ impl GlobalStreamManager {
             definition: definition.to_string(),
             ddl_type,
             replace_table: replace_table_command,
+            create_type,
         };
         tracing::debug!("sending Command::CreateStreamingJob");
         if let Err(err) = self.barrier_scheduler.run_command(command).await {

src/tests/simulation/tests/integration_tests/recovery/background_ddl.rs

@@ -440,7 +440,7 @@ async fn test_foreground_index_cancel() -> Result<()> {
 }
 
 #[tokio::test]
-async fn test_sink_create() -> Result<()> {
+async fn test_background_sink_create() -> Result<()> {
     init_logger();
     let mut cluster = Cluster::start(Configuration::for_background_ddl()).await?;
     let mut session = cluster.start_session();
@@ -450,6 +450,7 @@ async fn test_sink_create() -> Result<()> {
 
     let mut session2 = cluster.start_session();
     tokio::spawn(async move {
+        session2.run(SET_BACKGROUND_DDL).await.unwrap();
         session2.run(SET_RATE_LIMIT_2).await.unwrap();
         session2
             .run("CREATE SINK s FROM t WITH (connector='blackhole');")