diff --git a/CHANGES.md b/CHANGES.md
index 198cea829..9d49bf9d3 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -48,6 +48,7 @@ Release Notes.
 * Performance: trim useless metadata fields in Envoy ALS metadata to improve performance.
 * Fix: slowDBAccessThreshold dynamic config error when not configured.
 * Performance: cache regex pattern and result, optimize string concatenation in Envy ALS analyzer.
+* Performance: cache metrics id and entity id in `Metrics` and `ISource`.
 
 #### UI
 * Fix the date component for log conditions.
diff --git a/oap-server/exporter/src/test/java/org/apache/skywalking/oap/server/exporter/provider/grpc/MockMetrics.java b/oap-server/exporter/src/test/java/org/apache/skywalking/oap/server/exporter/provider/grpc/MockMetrics.java
index 98b8af2d4..6a5580207 100644
--- a/oap-server/exporter/src/test/java/org/apache/skywalking/oap/server/exporter/provider/grpc/MockMetrics.java
+++ b/oap-server/exporter/src/test/java/org/apache/skywalking/oap/server/exporter/provider/grpc/MockMetrics.java
@@ -24,7 +24,7 @@ import org.apache.skywalking.oap.server.core.remote.grpc.proto.RemoteData;
 public class MockMetrics extends Metrics {
 
     @Override
-    public String id() {
+    protected String id0() {
         return "mock-metrics";
     }
 
diff --git a/oap-server/oal-rt/src/main/resources/code-templates/metrics/id.ftl b/oap-server/oal-rt/src/main/resources/code-templates/metrics/id.ftl
index 141b0c862..b9933d300 100644
--- a/oap-server/oal-rt/src/main/resources/code-templates/metrics/id.ftl
+++ b/oap-server/oal-rt/src/main/resources/code-templates/metrics/id.ftl
@@ -1,4 +1,4 @@
-public String id() {
+protected String id0() {
 StringBuilder splitJointId = new StringBuilder(String.valueOf(getTimeBucket()));
 <#list fieldsFromSource as sourceField>
     <#if sourceField.isID()>
diff --git a/oap-server/server-alarm-plugin/src/test/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRuleTest.java b/oap-server/server-alarm-plugin/src/test/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRuleTest.java
index a025aebec..28027222a 100644
--- a/oap-server/server-alarm-plugin/src/test/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRuleTest.java
+++ b/oap-server/server-alarm-plugin/src/test/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRuleTest.java
@@ -429,7 +429,7 @@ public class RunningRuleTest {
         private int value;
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
@@ -486,7 +486,7 @@ public class RunningRuleTest {
         }
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
@@ -538,7 +538,7 @@ public class RunningRuleTest {
         private DataTable value;
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/endpoint/EndpointTraffic.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/endpoint/EndpointTraffic.java
index 5f38f7300..e3029048b 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/endpoint/EndpointTraffic.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/endpoint/EndpointTraffic.java
@@ -56,7 +56,7 @@ public class EndpointTraffic extends Metrics {
     private String name = Const.EMPTY_STRING;
 
     @Override
-    public String id() {
+    protected String id0() {
         // Downgrade the time bucket to day level only.
         // supportDownSampling == false for this entity.
         return IDManager.EndpointID.buildId(
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/instance/InstanceTraffic.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/instance/InstanceTraffic.java
index 7863bb72d..e66595b44 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/instance/InstanceTraffic.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/instance/InstanceTraffic.java
@@ -121,7 +121,7 @@ public class InstanceTraffic extends Metrics {
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return IDManager.ServiceInstanceID.buildId(serviceId, name);
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/networkalias/NetworkAddressAlias.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/networkalias/NetworkAddressAlias.java
index b524a74d9..75b3ff785 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/networkalias/NetworkAddressAlias.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/networkalias/NetworkAddressAlias.java
@@ -82,7 +82,7 @@ public class NetworkAddressAlias extends Metrics {
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return IDManager.NetworkAddressAliasDefine.buildId(address);
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/endpoint/EndpointRelationServerSideMetrics.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/endpoint/EndpointRelationServerSideMetrics.java
index b7649a3a9..abde69045 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/endpoint/EndpointRelationServerSideMetrics.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/endpoint/EndpointRelationServerSideMetrics.java
@@ -62,7 +62,7 @@ public class EndpointRelationServerSideMetrics extends Metrics {
     private String entityId;
 
     @Override
-    public String id() {
+    protected String id0() {
         String splitJointId = String.valueOf(getTimeBucket());
         splitJointId += Const.ID_CONNECTOR + entityId;
         return splitJointId;
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationClientSideMetrics.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationClientSideMetrics.java
index 07e5bbbb7..e8c396cda 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationClientSideMetrics.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationClientSideMetrics.java
@@ -72,7 +72,7 @@ public class ServiceInstanceRelationClientSideMetrics extends Metrics {
     private String entityId;
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationServerSideMetrics.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationServerSideMetrics.java
index 41dcc5f95..480c1cc0b 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationServerSideMetrics.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/instance/ServiceInstanceRelationServerSideMetrics.java
@@ -72,7 +72,7 @@ public class ServiceInstanceRelationServerSideMetrics extends Metrics {
     private String entityId;
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationClientSideMetrics.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationClientSideMetrics.java
index b52842c03..d9205fc1d 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationClientSideMetrics.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationClientSideMetrics.java
@@ -62,7 +62,7 @@ public class ServiceRelationClientSideMetrics extends Metrics {
     private String entityId;
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationServerSideMetrics.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationServerSideMetrics.java
index 8a983c7ff..ac5ed4336 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationServerSideMetrics.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/relation/service/ServiceRelationServerSideMetrics.java
@@ -62,7 +62,7 @@ public class ServiceRelationServerSideMetrics extends Metrics {
     private String entityId;
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/service/ServiceTraffic.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/service/ServiceTraffic.java
index ad26c8168..d5ab808f8 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/service/ServiceTraffic.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/service/ServiceTraffic.java
@@ -67,7 +67,7 @@ public class ServiceTraffic extends Metrics {
     private String group;
 
     @Override
-    public String id() {
+    protected String id0() {
         return IDManager.ServiceID.buildId(name, nodeType);
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/HistogramFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/HistogramFunction.java
index 1c933eaee..e6ee54ef1 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/HistogramFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/HistogramFunction.java
@@ -138,7 +138,7 @@ public abstract class HistogramFunction extends Metrics implements AcceptableVal
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/PercentileFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/PercentileFunction.java
index 061be7e31..2b670477e 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/PercentileFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/PercentileFunction.java
@@ -246,7 +246,7 @@ public abstract class PercentileFunction extends Metrics implements AcceptableVa
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgFunction.java
index f3bb41d74..dc2dec36d 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgFunction.java
@@ -148,7 +148,7 @@ public abstract class AvgFunction extends Metrics implements AcceptableValue<Lon
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramFunction.java
index 2fefde8b9..f2bfc39c8 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramFunction.java
@@ -167,7 +167,7 @@ public abstract class AvgHistogramFunction extends Metrics implements Acceptable
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramPercentileFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramPercentileFunction.java
index fe879e676..1dd353f5e 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramPercentileFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgHistogramPercentileFunction.java
@@ -318,7 +318,7 @@ public abstract class AvgHistogramPercentileFunction extends Metrics implements
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgLabeledFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgLabeledFunction.java
index cb4f55ef3..5e11958bd 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgLabeledFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/avg/AvgLabeledFunction.java
@@ -150,7 +150,7 @@ public abstract class AvgLabeledFunction extends Metrics implements AcceptableVa
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/latest/LatestFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/latest/LatestFunction.java
index ab68e6af4..9e4942655 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/latest/LatestFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/latest/LatestFunction.java
@@ -129,7 +129,7 @@ public abstract class LatestFunction extends Metrics implements AcceptableValue<
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + entityId;
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/sum/SumFunction.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/sum/SumFunction.java
index a0ccbab1c..d229f6b5a 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/sum/SumFunction.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/meter/function/sum/SumFunction.java
@@ -123,7 +123,7 @@ public abstract class SumFunction extends Metrics implements AcceptableValue<Lon
     }
 
     @Override
-    public String id() {
+    protected String id0() {
         return getTimeBucket() + Const.ID_CONNECTOR + getEntityId();
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/metrics/Metrics.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/metrics/Metrics.java
index f61389a81..904929e4a 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/metrics/Metrics.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/metrics/Metrics.java
@@ -131,4 +131,16 @@ public abstract class Metrics extends StreamData implements StorageData {
     private boolean isDayBucket() {
         return TimeBucket.isDayBucket(timeBucket);
     }
+
+    private volatile String id;
+
+    @Override
+    public String id() {
+        if (id == null) {
+            id = id0();
+        }
+        return id;
+    }
+
+    protected abstract String id0();
 }
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Event.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Event.java
index 17be3ae00..f985d0834 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Event.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Event.java
@@ -73,7 +73,7 @@ public class Event extends Metrics implements ISource, WithMetadata, LongValueHo
     public static final String END_TIME = "end_time";
 
     @Override
-    public String id() {
+    protected String id0() {
         return getUuid();
     }
 
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Service.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Service.java
index f140e70f8..07a2c6567 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Service.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/Service.java
@@ -31,6 +31,8 @@ import static org.apache.skywalking.oap.server.core.source.DefaultScopeDefine.SE
 @ScopeDeclaration(id = SERVICE, name = "Service", catalog = SERVICE_CATALOG_NAME)
 @ScopeDefaultColumn.VirtualColumnDefinition(fieldName = "entityId", columnName = "entity_id", isID = true, type = String.class)
 public class Service extends Source {
+    private volatile String entityId;
+
     @Override
     public int scope() {
         return DefaultScopeDefine.SERVICE;
@@ -38,7 +40,10 @@ public class Service extends Source {
 
     @Override
     public String getEntityId() {
-        return IDManager.ServiceID.buildId(name, nodeType);
+        if (entityId == null) {
+            entityId = IDManager.ServiceID.buildId(name, nodeType);
+        }
+        return entityId;
     }
 
     @Getter
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/ServiceInstance.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/ServiceInstance.java
index a4070bde7..b93742c0d 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/ServiceInstance.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/ServiceInstance.java
@@ -31,6 +31,8 @@ import static org.apache.skywalking.oap.server.core.source.DefaultScopeDefine.SE
 @ScopeDeclaration(id = SERVICE_INSTANCE, name = "ServiceInstance", catalog = SERVICE_INSTANCE_CATALOG_NAME)
 @ScopeDefaultColumn.VirtualColumnDefinition(fieldName = "entityId", columnName = "entity_id", isID = true, type = String.class)
 public class ServiceInstance extends Source {
+    private volatile String entityId;
+
     @Override
     public int scope() {
         return DefaultScopeDefine.SERVICE_INSTANCE;
@@ -38,7 +40,10 @@ public class ServiceInstance extends Source {
 
     @Override
     public String getEntityId() {
-        return IDManager.ServiceInstanceID.buildId(serviceId, name);
+        if (entityId == null) {
+            entityId = IDManager.ServiceInstanceID.buildId(serviceId, name);
+        }
+        return entityId;
     }
 
     @Getter
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/ApdexMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/ApdexMetricsTest.java
index cd347c5db..446ee67aa 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/ApdexMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/ApdexMetricsTest.java
@@ -104,7 +104,7 @@ public class ApdexMetricsTest {
     public class ApdexMetricsImpl extends ApdexMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/CountMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/CountMetricsTest.java
index 5c7d1a466..0809ebced 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/CountMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/CountMetricsTest.java
@@ -56,7 +56,7 @@ public class CountMetricsTest {
 
     public class CountMetricsImpl extends CountMetrics {
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/HeatMapMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/HeatMapMetricsTest.java
index 6be4f77ca..713b4fac8 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/HeatMapMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/HeatMapMetricsTest.java
@@ -88,7 +88,7 @@ public class HeatMapMetricsTest {
     public class HistogramMetricsMocker extends HistogramMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/LongAvgMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/LongAvgMetricsTest.java
index aa519117e..4867dc537 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/LongAvgMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/LongAvgMetricsTest.java
@@ -52,7 +52,7 @@ public class LongAvgMetricsTest {
     public class LongAvgMetricsImpl extends LongAvgMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MaxLongMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MaxLongMetricsTest.java
index e21c59cbf..f3dcd2418 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MaxLongMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MaxLongMetricsTest.java
@@ -54,7 +54,7 @@ public class MaxLongMetricsTest {
     public class MaxLongMetricsImpl extends MaxLongMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MetricsTest.java
index a4834e8f1..351441e41 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MetricsTest.java
@@ -73,7 +73,7 @@ public class MetricsTest {
     public class MetricsMocker extends Metrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MinLongMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MinLongMetricsTest.java
index 9548a3b17..b02dca055 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MinLongMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/MinLongMetricsTest.java
@@ -59,7 +59,7 @@ public class MinLongMetricsTest {
     public class MinLongMetricsImpl extends MinLongMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentMetricsTest.java
index 7b04bc1e0..eec91eb69 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentMetricsTest.java
@@ -67,7 +67,7 @@ public class PercentMetricsTest {
     public class PercentMetricsImpl extends PercentMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentileMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentileMetricsTest.java
index 10c140acf..512cc9964 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentileMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PercentileMetricsTest.java
@@ -118,7 +118,7 @@ public class PercentileMetricsTest {
     public class PercentileMetricsMocker extends PercentileMetrics {
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }
 
diff --git a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PxxMetricsTest.java b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PxxMetricsTest.java
index acbadc15c..fc1b8e977 100644
--- a/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PxxMetricsTest.java
+++ b/oap-server/server-core/src/test/java/org/apache/skywalking/oap/server/core/analysis/metrics/PxxMetricsTest.java
@@ -97,7 +97,7 @@ public class PxxMetricsTest {
         }
 
         @Override
-        public String id() {
+        protected String id0() {
             return null;
         }