diff --git a/s3stream/src/main/java/com/automq/stream/s3/cache/LogCache.java b/s3stream/src/main/java/com/automq/stream/s3/cache/LogCache.java
index f139fdca5..9bb393d1f 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/cache/LogCache.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/cache/LogCache.java
@@ -22,6 +22,8 @@
 import com.automq.stream.s3.metrics.operations.S3Operation;
 import com.automq.stream.s3.model.StreamRecordBatch;
 import com.automq.stream.utils.biniarysearch.StreamRecordBatchList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -41,6 +43,7 @@
 import static com.automq.stream.s3.cache.LogCache.StreamRange.NOOP_OFFSET;
 
 public class LogCache {
+    private static final Logger LOGGER = LoggerFactory.getLogger(LogCache.class);
     public static final long MATCH_ALL_STREAMS = -1L;
     private static final int DEFAULT_MAX_BLOCK_STREAM_COUNT = 10000;
     private static final Consumer<LogCacheBlock> DEFAULT_BLOCK_FREE_LISTENER = block -> {
@@ -84,7 +87,13 @@ public boolean put(StreamRecordBatch recordBatch) {
         TimerUtil timerUtil = new TimerUtil();
         tryRealFree();
         size.addAndGet(recordBatch.size());
-        boolean full = activeBlock.put(recordBatch);
+        readLock.lock();
+        boolean full;
+        try {
+            full = activeBlock.put(recordBatch);
+        } finally {
+            readLock.unlock();
+        }
         S3StreamMetricsManager.recordOperationLatency(timerUtil.elapsedAs(TimeUnit.NANOSECONDS), S3Operation.APPEND_STORAGE_LOG_CACHE);
         return full;
     }
@@ -379,6 +388,11 @@ static class StreamCache {
         Map<Long, IndexAndCount> offsetIndexMap = new HashMap<>();
 
         synchronized void add(StreamRecordBatch recordBatch) {
+            if (recordBatch.getBaseOffset() != endOffset && endOffset != NOOP_OFFSET) {
+                RuntimeException ex = new IllegalArgumentException(String.format("streamId=%s record batch base offset mismatch, expect %s, actual %s",
+                        recordBatch.getStreamId(), endOffset, recordBatch.getBaseOffset()));
+                LOGGER.error("[FATAL]", ex);
+            }
             records.add(recordBatch);
             if (startOffset == NOOP_OFFSET) {
                 startOffset = recordBatch.getBaseOffset();