diff --git a/pom.xml b/pom.xml
index 11ed55e39..a1b7a318c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,7 +53,7 @@
         <guava.version>32.0.1-jre</guava.version>
         <slf4j.version>2.0.9</slf4j.version>
         <snakeyaml.version>2.2</snakeyaml.version>
-        <s3stream.version>0.1.19-SNAPSHOT</s3stream.version>
+        <s3stream.version>0.1.20-SNAPSHOT</s3stream.version>
 
         <!-- Flat buffers related -->
         <flatbuffers.version>23.5.26</flatbuffers.version>
diff --git a/s3stream/pom.xml b/s3stream/pom.xml
index cea038e4d..18dab23d8 100644
--- a/s3stream/pom.xml
+++ b/s3stream/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.automq.elasticstream</groupId>
     <artifactId>s3stream</artifactId>
-    <version>0.1.19-SNAPSHOT</version>
+    <version>0.1.20-SNAPSHOT</version>
     <properties>
         <mockito-core.version>5.5.0</mockito-core.version>
         <junit-jupiter.version>5.10.0</junit-jupiter.version>
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/Counter.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/Counter.java
index 338ecfb0a..fc09f9d14 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/Counter.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/Counter.java
@@ -18,6 +18,7 @@
 package com.automq.stream.s3.metrics;
 
 public interface Counter {
+    String SUFFIX = "_total";
     void inc();
     void inc(long n);
     long count();
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/NoopS3StreamMetricsGroup.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/NoopS3StreamMetricsGroup.java
index 537255ecd..03d53c673 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/NoopS3StreamMetricsGroup.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/NoopS3StreamMetricsGroup.java
@@ -21,7 +21,7 @@
 
 public class NoopS3StreamMetricsGroup implements S3StreamMetricsGroup {
     @Override
-    public Counter newCounter(String type, String name, Map<String, String> tags) {
+    public Counter newCounter(String name, Map<String, String> tags) {
         return new Counter() {
             @Override
             public void inc() {
@@ -41,7 +41,7 @@ public long count() {
     }
 
     @Override
-    public Histogram newHistogram(String type, String name, Map<String, String> tags) {
+    public Histogram newHistogram(String name, Map<String, String> tags) {
         return new Histogram() {
             @Override
             public void update(long value) {
@@ -61,7 +61,7 @@ public double mean() {
     }
 
     @Override
-    public void newGauge(String type, String name, Map<String, String> tags, Gauge gauge) {
+    public void newGauge(String name, Map<String, String> tags, Gauge gauge) {
 
     }
 
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/S3StreamMetricsGroup.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/S3StreamMetricsGroup.java
index 2ac92e0f8..cedf24747 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/S3StreamMetricsGroup.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/S3StreamMetricsGroup.java
@@ -20,9 +20,9 @@
 import java.util.Map;
 
 public interface S3StreamMetricsGroup {
-    Counter newCounter(String type, String name, Map<String, String> tags);
+    Counter newCounter(String name, Map<String, String> tags);
 
-    Histogram newHistogram(String type, String name, Map<String, String> tags);
+    Histogram newHistogram(String name, Map<String, String> tags);
 
-    void newGauge(String type, String name, Map<String, String> tags, Gauge gauge);
+    void newGauge(String name, Map<String, String> tags, Gauge gauge);
 }
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/ByteBufMetricsStats.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/ByteBufMetricsStats.java
index 03dc18720..f2b347a9d 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/ByteBufMetricsStats.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/ByteBufMetricsStats.java
@@ -19,7 +19,6 @@
 
 import com.automq.stream.s3.metrics.Histogram;
 import com.automq.stream.s3.metrics.S3StreamMetricsRegistry;
-import com.automq.stream.s3.metrics.operations.S3MetricsType;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
@@ -30,8 +29,7 @@ public class ByteBufMetricsStats {
     public static Histogram getHistogram(String source) {
         return SOURCE_TO_HISTOGRAM.computeIfAbsent(source, k -> {
             Map<String, String> tags = Map.of("source", k);
-            return S3StreamMetricsRegistry.getMetricsGroup().newHistogram(S3MetricsType.S3Storage.getName(),
-                    S3MetricsType.S3Storage.getName() + "size", tags);
+            return S3StreamMetricsRegistry.getMetricsGroup().newHistogram("s3_stream_byte_buf_size", tags);
         });
     }
 }
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/NetworkMetricsStats.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/NetworkMetricsStats.java
index 8ce79ae09..9db95a188 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/NetworkMetricsStats.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/NetworkMetricsStats.java
@@ -20,26 +20,25 @@
 import com.automq.stream.s3.metrics.Counter;
 import com.automq.stream.s3.metrics.Gauge;
 import com.automq.stream.s3.metrics.S3StreamMetricsRegistry;
-import com.automq.stream.s3.metrics.operations.S3MetricsType;
 import com.automq.stream.s3.network.AsyncNetworkBandwidthLimiter;
 
 import java.util.Collections;
 
 public class NetworkMetricsStats {
 
-    public static final Counter NETWORK_INBOUND_USAGE = S3StreamMetricsRegistry.getMetricsGroup().newCounter(S3MetricsType.S3Network.getName(),
-            S3MetricsType.S3Network.getName() + "InboundUsage", Collections.emptyMap());
+    public static final Counter NETWORK_INBOUND_USAGE = S3StreamMetricsRegistry.getMetricsGroup()
+            .newCounter("network_inbound_usage" + Counter.SUFFIX, Collections.emptyMap());
 
-    public static final Counter NETWORK_OUTBOUND_USAGE = S3StreamMetricsRegistry.getMetricsGroup().newCounter(S3MetricsType.S3Network.getName(),
-            S3MetricsType.S3Network.getName() + "OutboundUsage", Collections.emptyMap());
+    public static final Counter NETWORK_OUTBOUND_USAGE = S3StreamMetricsRegistry.getMetricsGroup()
+            .newCounter("network_outbound_usage" + Counter.SUFFIX, Collections.emptyMap());
 
     public static void registerNetworkInboundAvailableBandwidth(AsyncNetworkBandwidthLimiter.Type type, Gauge gauge) {
-        S3StreamMetricsRegistry.getMetricsGroup().newGauge(S3MetricsType.S3Network.getName(),
-                S3MetricsType.S3Network.getName() + type.getName() + "AvailableBandwidth", Collections.emptyMap(), gauge);
+        String metricName = String.format("network_%s_available_bandwidth", type.getName().toLowerCase());
+        S3StreamMetricsRegistry.getMetricsGroup().newGauge(metricName, Collections.emptyMap(), gauge);
     }
 
     public static void registerNetworkLimiterQueueSize(AsyncNetworkBandwidthLimiter.Type type, Gauge gauge) {
-        S3StreamMetricsRegistry.getMetricsGroup().newGauge(S3MetricsType.S3Network.getName(),
-                S3MetricsType.S3Network.getName() + type.getName() + "QueueSize", Collections.emptyMap(), gauge);
+        String metricName = String.format("network_%s_limiter_queue_size", type.getName().toLowerCase());
+        S3StreamMetricsRegistry.getMetricsGroup().newGauge(metricName, Collections.emptyMap(), gauge);
     }
 }
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/OperationMetricsStats.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/OperationMetricsStats.java
index 878337889..86138117e 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/OperationMetricsStats.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/OperationMetricsStats.java
@@ -38,11 +38,11 @@ public static class OperationMetrics {
         public final Histogram operationTime;
 
         public OperationMetrics(S3Operation s3Operation) {
-            Map<String, String> tags = Map.of("operation", s3Operation.getName());
-            operationCount = S3StreamMetricsRegistry.getMetricsGroup().newCounter(s3Operation.getType().getName(),
-                    s3Operation.getType().getName() + "OperationCount", tags);
-            operationTime = S3StreamMetricsRegistry.getMetricsGroup().newHistogram(s3Operation.getType().getName(),
-                    s3Operation.getType().getName() + "OperationTime", tags);
+            Map<String, String> tags = Map.of(
+                    "operation", s3Operation.getName(),
+                    "type", s3Operation.getType().getName());
+            operationCount = S3StreamMetricsRegistry.getMetricsGroup().newCounter("operation_count" + Counter.SUFFIX, tags);
+            operationTime = S3StreamMetricsRegistry.getMetricsGroup().newHistogram("operation_time", tags);
         }
 
     }
diff --git a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/S3ObjectMetricsStats.java b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/S3ObjectMetricsStats.java
index 6ed739dc8..8a4d72a27 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/S3ObjectMetricsStats.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/metrics/stats/S3ObjectMetricsStats.java
@@ -20,7 +20,6 @@
 import com.automq.stream.s3.metrics.Counter;
 import com.automq.stream.s3.metrics.Histogram;
 import com.automq.stream.s3.metrics.S3StreamMetricsRegistry;
-import com.automq.stream.s3.metrics.operations.S3MetricsType;
 import com.automq.stream.s3.metrics.operations.S3ObjectStage;
 
 import java.util.Collections;
@@ -29,16 +28,14 @@
 
 public class S3ObjectMetricsStats {
     private static final Map<String, Histogram> S3_OBJECT_TIME_MAP = new ConcurrentHashMap<>();
-    public static final Counter S3_OBJECT_COUNT = S3StreamMetricsRegistry.getMetricsGroup().newCounter(S3MetricsType.S3Object.getName(),
-            S3MetricsType.S3Object.getName() + "Count", Collections.emptyMap());
-    public static final Histogram S3_OBJECT_SIZE = S3StreamMetricsRegistry.getMetricsGroup().newHistogram(S3MetricsType.S3Object.getName(),
-            S3MetricsType.S3Object.getName() + "Size", Collections.emptyMap());
+    public static final Counter S3_OBJECT_COUNT = S3StreamMetricsRegistry.getMetricsGroup().newCounter("s3_object_count" + Counter.SUFFIX, Collections.emptyMap());
+    public static final Histogram S3_OBJECT_UPLOAD_SIZE = S3StreamMetricsRegistry.getMetricsGroup().newHistogram("s3_object_upload_size", Collections.emptyMap());
+    public static final Histogram S3_OBJECT_DOWNLOAD_SIZE = S3StreamMetricsRegistry.getMetricsGroup().newHistogram("s3_object_download_size", Collections.emptyMap());
 
     public static Histogram getOrCreateS3ObjectMetrics(S3ObjectStage stage) {
         return S3_OBJECT_TIME_MAP.computeIfAbsent(stage.getName(), op -> {
             Map<String, String> tags = Map.of("stage", stage.getName());
-            return S3StreamMetricsRegistry.getMetricsGroup().newHistogram(S3MetricsType.S3Object.getName(),
-                    S3MetricsType.S3Object.getName() + "Time", tags);
+            return S3StreamMetricsRegistry.getMetricsGroup().newHistogram("s3_object_stage_time", tags);
         });
     }
 }
diff --git a/s3stream/src/main/java/com/automq/stream/s3/operator/DefaultS3Operator.java b/s3stream/src/main/java/com/automq/stream/s3/operator/DefaultS3Operator.java
index 69c036555..ed63f43a6 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/operator/DefaultS3Operator.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/operator/DefaultS3Operator.java
@@ -21,6 +21,7 @@
 import com.automq.stream.s3.metrics.TimerUtil;
 import com.automq.stream.s3.metrics.operations.S3Operation;
 import com.automq.stream.s3.metrics.stats.OperationMetricsStats;
+import com.automq.stream.s3.metrics.stats.S3ObjectMetricsStats;
 import com.automq.stream.s3.network.AsyncNetworkBandwidthLimiter;
 import com.automq.stream.s3.network.ThrottleStrategy;
 import com.automq.stream.utils.FutureUtil;
@@ -249,7 +250,9 @@ void mergedRangeRead0(String path, long start, long end, CompletableFuture<ByteB
                 .thenAccept(responsePublisher -> {
                     OperationMetricsStats.getOrCreateOperationMetrics(S3Operation.GET_OBJECT).operationCount.inc();
                     OperationMetricsStats.getOrCreateOperationMetrics(S3Operation.GET_OBJECT).operationTime.update(timerUtil.elapsed());
-                    ByteBuf buf = DirectByteBufAlloc.byteBuffer((int) (end - start + 1), "merge_read");
+                    long size = end - start + 1;
+                    S3ObjectMetricsStats.S3_OBJECT_DOWNLOAD_SIZE.update(size);
+                    ByteBuf buf = DirectByteBufAlloc.byteBuffer((int) size, "merge_read");
                     responsePublisher.subscribe(buf::writeBytes).thenAccept(v -> cf.complete(buf));
                 })
                 .exceptionally(ex -> {
diff --git a/s3stream/src/main/java/com/automq/stream/s3/operator/MultiPartWriter.java b/s3stream/src/main/java/com/automq/stream/s3/operator/MultiPartWriter.java
index 8c3e662d5..6b0e74edb 100644
--- a/s3stream/src/main/java/com/automq/stream/s3/operator/MultiPartWriter.java
+++ b/s3stream/src/main/java/com/automq/stream/s3/operator/MultiPartWriter.java
@@ -146,7 +146,7 @@ public CompletableFuture<Void> close() {
         closeCf.whenComplete((nil, ex) -> {
             S3ObjectMetricsStats.getOrCreateS3ObjectMetrics(S3ObjectStage.TOTAL).update(timerUtil.elapsed());
             S3ObjectMetricsStats.S3_OBJECT_COUNT.inc();
-            S3ObjectMetricsStats.S3_OBJECT_SIZE.update(totalWriteSize.get());
+            S3ObjectMetricsStats.S3_OBJECT_UPLOAD_SIZE.update(totalWriteSize.get());
         });
         return closeCf;
     }
diff --git a/store/src/main/java/com/automq/rocketmq/store/metrics/BaseStreamMetrics.java b/store/src/main/java/com/automq/rocketmq/store/metrics/BaseStreamMetrics.java
index bebeec395..cc3cb439a 100644
--- a/store/src/main/java/com/automq/rocketmq/store/metrics/BaseStreamMetrics.java
+++ b/store/src/main/java/com/automq/rocketmq/store/metrics/BaseStreamMetrics.java
@@ -31,9 +31,9 @@ public class BaseStreamMetrics {
     protected final Map<String, String> tags;
     protected final String metricsName;
 
-    protected BaseStreamMetrics(String type, String name, Map<String, String> tags,
+    protected BaseStreamMetrics(String name, Map<String, String> tags,
         Meter meter, Supplier<AttributesBuilder> attributesBuilderSupplier) {
-        this.metricsName = metricsName(type, name);
+        this.metricsName = metricsName(name);
         this.tags = tags;
         this.meter = meter;
         this.attributesBuilderSupplier = attributesBuilderSupplier;
@@ -51,10 +51,8 @@ protected AttributesBuilder newAttributesBuilder() {
         return builder;
     }
 
-    protected String metricsName(String type, String name) {
-        name = name.replace(type, "");
+    protected String metricsName(String name) {
         name = name.toLowerCase();
-        type = type.toLowerCase();
-        return STREAM_METRICS_PREFIX + type + "_" + name;
+        return STREAM_METRICS_PREFIX + "_" + name;
     }
 }
diff --git a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsCounter.java b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsCounter.java
index 30f35faf7..988123845 100644
--- a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsCounter.java
+++ b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsCounter.java
@@ -25,13 +25,12 @@
 import java.util.function.Supplier;
 
 public class StreamMetricsCounter extends BaseStreamMetrics implements Counter {
-    private static final String STREAM_METRICS_COUNTER_SUFFIX = "_total";
     private final LongCounter counter;
 
-    public StreamMetricsCounter(String type, String name, Map<String, String> tags,
+    public StreamMetricsCounter(String name, Map<String, String> tags,
         Meter meter, Supplier<AttributesBuilder> attributesBuilderSupplier) {
-        super(type, name, tags, meter, attributesBuilderSupplier);
-        this.counter = this.meter.counterBuilder(this.metricsName + STREAM_METRICS_COUNTER_SUFFIX)
+        super(name, tags, meter, attributesBuilderSupplier);
+        this.counter = this.meter.counterBuilder(this.metricsName)
             .build();
     }
 
diff --git a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsGauge.java b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsGauge.java
index d918d50d5..e0c89b37f 100644
--- a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsGauge.java
+++ b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsGauge.java
@@ -25,9 +25,9 @@
 
 public class StreamMetricsGauge extends BaseStreamMetrics {
 
-    public StreamMetricsGauge(String type, String name, Map<String, String> tags,
+    public StreamMetricsGauge(String name, Map<String, String> tags,
         Meter meter, Supplier<AttributesBuilder> attributesBuilderSupplier, Gauge gauge) {
-        super(type, name, tags, meter, attributesBuilderSupplier);
+        super(name, tags, meter, attributesBuilderSupplier);
         this.meter.gaugeBuilder(this.metricsName)
             .ofLongs()
             .buildWithCallback(measurement -> measurement.record(gauge.value(), newAttributesBuilder().build()));
diff --git a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsHistogram.java b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsHistogram.java
index 7b90228fc..5013ec54c 100644
--- a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsHistogram.java
+++ b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsHistogram.java
@@ -27,9 +27,9 @@
 public class StreamMetricsHistogram extends BaseStreamMetrics implements Histogram {
     private final LongHistogram histogram;
 
-    public StreamMetricsHistogram(String type, String name, Map<String, String> tags,
+    public StreamMetricsHistogram(String name, Map<String, String> tags,
         Meter meter, Supplier<AttributesBuilder> attributesBuilderSupplier) {
-        super(type, name, tags, meter, attributesBuilderSupplier);
+        super(name, tags, meter, attributesBuilderSupplier);
         histogram = this.meter.histogramBuilder(this.metricsName)
             .ofLongs()
             .build();
diff --git a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsManager.java b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsManager.java
index e3d28664e..14cdcde90 100644
--- a/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsManager.java
+++ b/store/src/main/java/com/automq/rocketmq/store/metrics/StreamMetricsManager.java
@@ -48,17 +48,17 @@ public void initDynamicMetrics(Meter meter) {
     }
 
     @Override
-    public Counter newCounter(String type, String name, Map<String, String> tags) {
-        return new StreamMetricsCounter(type, name, tags, meter, attributesBuilderSupplier);
+    public Counter newCounter(String name, Map<String, String> tags) {
+        return new StreamMetricsCounter(name, tags, meter, attributesBuilderSupplier);
     }
 
     @Override
-    public Histogram newHistogram(String type, String name, Map<String, String> tags) {
-        return new StreamMetricsHistogram(type, name, tags, meter, attributesBuilderSupplier);
+    public Histogram newHistogram(String name, Map<String, String> tags) {
+        return new StreamMetricsHistogram(name, tags, meter, attributesBuilderSupplier);
     }
 
     @Override
-    public void newGauge(String type, String name, Map<String, String> tags, Gauge gauge) {
-        new StreamMetricsGauge(type, name, tags, meter, attributesBuilderSupplier, gauge);
+    public void newGauge(String name, Map<String, String> tags, Gauge gauge) {
+        new StreamMetricsGauge(name, tags, meter, attributesBuilderSupplier, gauge);
     }
 }