diff --git a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSource.java b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSource.java
index 5a04146..8c3a8dc 100644
--- a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSource.java
+++ b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSource.java
@@ -11,13 +11,14 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Locale;
 import java.util.concurrent.TimeUnit;
+
+import com.lanyuanxiaoyao.service.executor.task.helper.TimeRangeHelper;
 import org.apache.flink.api.common.typeinfo.TypeInformation;
 import org.apache.flink.api.connector.source.*;
 import org.apache.flink.api.java.typeutils.ResultTypeQueryable;
 import org.apache.flink.core.io.SimpleVersionedSerializer;
 import org.apache.pulsar.client.api.*;
-import org.eclipse.collections.api.factory.Lists;
-import org.eclipse.collections.api.list.MutableList;
+import org.eclipse.collections.api.list.ImmutableList;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -49,23 +50,20 @@ public class ReadPulsarSource implements Source<RecordView, ReadPulsarSplit, Col
                 Message<byte[]> message = consumer.receive();
                 long startTimestamp = message.getPublishTime();
                 long endTimestamp = Instant.now().toEpochMilli();
-                MutableList<ReadPulsarSplit> tasks = Lists.mutable.empty();
-                while (startTimestamp < endTimestamp) {
-                    tasks.add(new ReadPulsarSplit(
-                            taskContext.getTaskId(),
-                            pulsarUrl,
-                            pulsarTopic,
-                            latestMessageId.toString(),
-                            startTimestamp,
-                            Math.min(endTimestamp, startTimestamp + TASK_GAP)
-                    ));
-                    startTimestamp += TASK_GAP;
-                }
+                ImmutableList<ReadPulsarSplit> tasks = TimeRangeHelper.range(startTimestamp, endTimestamp, TASK_GAP)
+                        .collect(range -> new ReadPulsarSplit(
+                                taskContext.getTaskId(),
+                                pulsarUrl,
+                                pulsarTopic,
+                                latestMessageId.toString(),
+                                range.getStart(),
+                                range.getEnd()
+                        ));
                 logger.info("Gap: {}, Splits: {}", TASK_GAP, tasks.size());
                 for (ReadPulsarSplit split : tasks) {
                     logger.info("Read split: {} -> {}", covertTimestamp(split.getStartTimestamp()), covertTimestamp(split.getEndTimestamp()));
                 }
-                splits = new ArrayList<>(tasks.shuffleThis());
+                splits = new ArrayList<>(tasks.toList().shuffleThis());
             }
         }
     }
diff --git a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceEnumerator.java b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceEnumerator.java
index 5360ca4..ee68971 100644
--- a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceEnumerator.java
+++ b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceEnumerator.java
@@ -7,7 +7,11 @@ import java.util.ArrayDeque;
 import java.util.Collection;
 import java.util.List;
 import java.util.Queue;
+import java.util.concurrent.atomic.AtomicInteger;
 import javax.annotation.Nullable;
+
+import com.lanyuanxiaoyao.service.executor.task.functions.pulsar.event.FinishSplitEvent;
+import org.apache.flink.api.connector.source.SourceEvent;
 import org.apache.flink.api.connector.source.SplitEnumerator;
 import org.apache.flink.api.connector.source.SplitEnumeratorContext;
 import org.slf4j.Logger;
@@ -21,21 +25,30 @@ public class ReadPulsarSourceEnumerator implements SplitEnumerator<ReadPulsarSpl
     private static final Logger logger = LoggerFactory.getLogger(ReadPulsarSourceEnumerator.class);
     private final SplitEnumeratorContext<ReadPulsarSplit> context;
     private final Queue<ReadPulsarSplit> readQueue;
+    private final AtomicInteger success = new AtomicInteger(0);
 
     public ReadPulsarSourceEnumerator(SplitEnumeratorContext<ReadPulsarSplit> context, Collection<ReadPulsarSplit> splits) {
         this.context = context;
         this.readQueue = new ArrayDeque<>(splits);
+        this.success.set(splits.size());
     }
 
     @Override
     public void start() {
     }
 
+    @Override
+    public void handleSourceEvent(int subtaskId, SourceEvent sourceEvent) {
+        if (sourceEvent instanceof FinishSplitEvent) {
+            logger.info("{}", success.decrementAndGet());
+        }
+    }
+
     @Override
     public void handleSplitRequest(int subtaskId, @Nullable String requesterHostname) {
         final ReadPulsarSplit split = readQueue.poll();
         if (ObjectUtil.isNotNull(split)) {
-            logger.info("t{} Assign split for {}, Queue rest: {}", subtaskId, subtaskId, readQueue.size());
+            logger.info("t{} Assign split for {}, Queue rest: {}, Success: {}", subtaskId, subtaskId, readQueue.size(), success.get());
             context.assignSplit(split, subtaskId);
         } else {
             logger.info("t{} No more split for {}", subtaskId, subtaskId);
diff --git a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceReader.java b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceReader.java
index 577d688..6182fdf 100644
--- a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceReader.java
+++ b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/ReadPulsarSourceReader.java
@@ -15,6 +15,8 @@ import java.util.Queue;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
+
+import com.lanyuanxiaoyao.service.executor.task.functions.pulsar.event.FinishSplitEvent;
 import org.apache.flink.api.connector.source.ReaderOutput;
 import org.apache.flink.api.connector.source.SourceReader;
 import org.apache.flink.api.connector.source.SourceReaderContext;
@@ -70,6 +72,8 @@ public class ReadPulsarSourceReader implements SourceReader<RecordView, ReadPuls
         logger.info("t{} Poll Next", readerContext.getIndexOfSubtask());
         if (ObjectUtil.isNotNull(currentSplit)) {
             logger.info("t{} Read split: {}", readerContext.getIndexOfSubtask(), currentSplit.getStartTimestamp());
+            long startTimestamp = currentSplit.getStartTimestamp();
+            long endTimestamp = currentSplit.getEndTimestamp();
             try (PulsarClient client = PulsarClient.builder()
                     .serviceUrl(currentSplit.getPulsarUrl())
                     .build()) {
@@ -80,16 +84,17 @@ public class ReadPulsarSourceReader implements SourceReader<RecordView, ReadPuls
                                 "Task_Reader_{}_{}_{}_{}",
                                 currentSplit.getTaskId(),
                                 readerContext.getIndexOfSubtask(),
-                                currentSplit.getStartTimestamp(),
-                                currentSplit.getEndTimestamp()
+                                startTimestamp,
+                                endTimestamp
                         ))
                         .startMessageIdInclusive()
                         .startMessageId(MessageId.earliest)
                         .create()) {
-                    reader.seek(currentSplit.getStartTimestamp());
+                    reader.seek(startTimestamp);
                     Message<String> message = reader.readNext(10, TimeUnit.SECONDS);
                     while (ObjectUtil.isNotNull(message)) {
-                        if (message.getPublishTime() > currentSplit.getEndTimestamp()) {
+                        long publishTime = message.getPublishTime();
+                        if (publishTime > endTimestamp) {
                             logger.info("t{} Break for {} -> {}, Queue rest: {}", readerContext.getIndexOfSubtask(), message.getPublishTime(), currentSplit.getEndTimestamp(), readQueue.size());
                             break;
                         }
@@ -101,6 +106,7 @@ public class ReadPulsarSourceReader implements SourceReader<RecordView, ReadPuls
         }
 
         currentSplit = null;
+        readerContext.sendSourceEventToCoordinator(new FinishSplitEvent());
         if (ObjectUtil.isEmpty(readQueue) && !noMoreSplits) {
             readerContext.sendSplitRequest();
             logger.info("t{} Request new split", readerContext.getIndexOfSubtask());
diff --git a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/event/AddSplitEvent.java b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/event/AddSplitEvent.java
new file mode 100644
index 0000000..392cb11
--- /dev/null
+++ b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/event/AddSplitEvent.java
@@ -0,0 +1,27 @@
+package com.lanyuanxiaoyao.service.executor.task.functions.pulsar.event;
+
+import com.lanyuanxiaoyao.service.executor.task.functions.pulsar.ReadPulsarSplit;
+import org.apache.flink.api.connector.source.SourceEvent;
+import org.eclipse.collections.api.list.ImmutableList;
+
+/**
+ * @author lanyuanxiaoyao
+ */
+public class AddSplitEvent implements SourceEvent {
+    private final ImmutableList<ReadPulsarSplit> splits;
+
+    public AddSplitEvent(ImmutableList<ReadPulsarSplit> splits) {
+        this.splits = splits;
+    }
+
+    public ImmutableList<ReadPulsarSplit> getSplits() {
+        return splits;
+    }
+
+    @Override
+    public String toString() {
+        return "AddSplitEvent{" +
+                "splits=" + splits +
+                '}';
+    }
+}
diff --git a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/event/FinishSplitEvent.java b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/event/FinishSplitEvent.java
new file mode 100644
index 0000000..4351faf
--- /dev/null
+++ b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/functions/pulsar/event/FinishSplitEvent.java
@@ -0,0 +1,9 @@
+package com.lanyuanxiaoyao.service.executor.task.functions.pulsar.event;
+
+import org.apache.flink.api.connector.source.SourceEvent;
+
+/**
+ * @author lanyuanxiaoyao
+ */
+public class FinishSplitEvent implements SourceEvent {
+}
diff --git a/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/helper/TimeRangeHelper.java b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/helper/TimeRangeHelper.java
new file mode 100644
index 0000000..92261a2
--- /dev/null
+++ b/service-executor/service-executor-task/src/main/java/com/lanyuanxiaoyao/service/executor/task/helper/TimeRangeHelper.java
@@ -0,0 +1,37 @@
+package com.lanyuanxiaoyao.service.executor.task.helper;
+
+import org.eclipse.collections.api.factory.Lists;
+import org.eclipse.collections.api.list.ImmutableList;
+import org.eclipse.collections.api.list.MutableList;
+
+/**
+ * @author lanyuanxiaoyao
+ */
+public class TimeRangeHelper {
+    public static final class TimeRange {
+        private final long start;
+        private final long end;
+
+        public TimeRange(long start, long end) {
+            this.start = start;
+            this.end = end;
+        }
+
+        public long getStart() {
+            return start;
+        }
+
+        public long getEnd() {
+            return end;
+        }
+    }
+
+    public static ImmutableList<TimeRange> range(long start, long end, long gap) {
+        MutableList<TimeRange> ranges = Lists.mutable.empty();
+        while (start <= end) {
+            ranges.add(new TimeRange(start, Math.min(end, start + gap)));
+            start += gap;
+        }
+        return ranges.toImmutable();
+    }
+}