JingsongLi commented on code in PR #4039:
URL: https://github.com/apache/paimon/pull/4039#discussion_r1728125802
##########
paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/source/AppendBypassCoordinateOperator.java:
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@@ -57,27 +76,49 @@ public void open() throws Exception {
checkArgument(
getRuntimeContext().getNumberOfParallelSubtasks() == 1,
"Compaction Coordinator parallelism in paimon MUST be one.");
- this.coordinator = new UnawareAppendTableCompactionCoordinator(table,
true, null);
long intervalMs =
table.coreOptions().continuousDiscoveryInterval().toMillis();
- getProcessingTimeService().scheduleWithFixedDelay(this, 0, intervalMs);
+ this.compactTasks = new LinkedBlockingQueue<>();
+ UnawareAppendTableCompactionCoordinator coordinator =
+ new UnawareAppendTableCompactionCoordinator(table, true, null);
+ this.executorService =
+ Executors.newSingleThreadScheduledExecutor(
+ newDaemonThreadFactory("Compaction Coordinator"));
+ this.executorService.scheduleWithFixedDelay(
+ () -> asyncPlan(coordinator), 0, intervalMs,
TimeUnit.MILLISECONDS);
+ this.getProcessingTimeService().scheduleWithFixedDelay(this, 0,
intervalMs);
}
- @Override
- public void onProcessingTime(long time) {
- while (true) {
+ public void asyncPlan(UnawareAppendTableCompactionCoordinator coordinator)
{
+ while (compactTasks.size() < MAX_PENDING_TASKS) {
List<UnawareAppendCompactionTask> tasks = coordinator.run();
- for (UnawareAppendCompactionTask task : tasks) {
- output.collect(new StreamRecord<>(Either.Right(task)));
- }
-
+ compactTasks.addAll(tasks);
Review Comment:
So what is the benifit?
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