azexcy commented on code in PR #25787:
URL: https://github.com/apache/shardingsphere/pull/25787#discussion_r1198670941


##########
kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/task/IncrementalTask.java:
##########
@@ -94,24 +93,11 @@ private IncrementalTaskProgress 
createIncrementalTaskProgress(final IngestPositi
         return result;
     }
     
-    private Collection<Importer> createImporters(final int concurrency, final 
ImporterConfiguration importerConfig, final ImporterConnector 
importerConnector, final PipelineChannel channel,
-                                                 final 
PipelineJobProgressListener jobProgressListener) {
-        Collection<Importer> result = new LinkedList<>();
-        for (int i = 0; i < concurrency; i++) {
-            result.add(TypedSPILoader.getService(ImporterCreator.class, 
importerConnector.getType()).createImporter(importerConfig, importerConnector, 
channel, jobProgressListener,
-                    ImporterType.INCREMENTAL));
-        }
-        return result;
-    }
-    
-    private PipelineChannel createChannel(final int concurrency, final 
PipelineChannelCreator pipelineChannelCreator, final IncrementalTaskProgress 
progress) {
-        return pipelineChannelCreator.createPipelineChannel(concurrency, 
records -> {
+    private PipelineChannel createChannel(final PipelineChannelCreator 
pipelineChannelCreator, final IncrementalTaskProgress progress) {
+        return pipelineChannelCreator.createPipelineChannel(1, records -> {
             Record lastHandledRecord = records.get(records.size() - 1);
-            if (!(lastHandledRecord.getPosition() instanceof 
PlaceholderPosition)) {
-                progress.setPosition(lastHandledRecord.getPosition());
-                
progress.getIncrementalTaskDelay().setLastEventTimestamps(lastHandledRecord.getCommitTime());
-            }
-            
progress.getIncrementalTaskDelay().setLatestActiveTimeMillis(System.currentTimeMillis());
+            progress.setPosition(lastHandledRecord.getPosition());
+            
progress.getIncrementalTaskDelay().setLastEventTimestamps(lastHandledRecord.getCommitTime());

Review Comment:
   My misstake, i will rollback it.



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