diff --git a/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/main/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricsServiceHandler.java b/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/main/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricsServiceHandler.java
index 403698a59e0ab25d50ce77bc62a40a8860ae40d9..e897889353126492daeefadb9bb1cc66d1facf89 100644
--- a/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/main/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricsServiceHandler.java
+++ b/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/main/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricsServiceHandler.java
@@ -70,7 +70,7 @@ public class JVMMetricsServiceHandler extends JVMMetricsServiceGrpc.JVMMetricsSe
 //            sendToCpuMetricService(instanceId, time, metric.getCpu());
             sendToMemoryMetricService(instanceId, time, metric.getMemoryList());
             sendToMemoryPoolMetricService(instanceId, time, metric.getMemoryPoolList());
-//            sendToGCMetricService(instanceId, time, metric.getGcList());
+            sendToGCMetricService(instanceId, time, metric.getGcList());
         });
 
         responseObserver.onNext(Downstream.newBuilder().build());
diff --git a/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/test/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricServiceHandlerTestCase.java b/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/test/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricServiceHandlerTestCase.java
index ab7417e86da7bcbb1be243dd9b0383498fa68187..07969657444da5ea3edcecaf4c20487f874472a3 100644
--- a/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/test/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricServiceHandlerTestCase.java
+++ b/apm-collector/apm-collector-agent/agent-grpc/agent-grpc-provider/src/test/java/org/apache/skywalking/apm/collector/agent/grpc/provider/handler/JVMMetricServiceHandlerTestCase.java
@@ -20,6 +20,8 @@ package org.apache.skywalking.apm.collector.agent.grpc.provider.handler;
 
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
+import org.apache.skywalking.apm.network.proto.GC;
+import org.apache.skywalking.apm.network.proto.GCPhrase;
 import org.apache.skywalking.apm.network.proto.JVMMetric;
 import org.apache.skywalking.apm.network.proto.JVMMetrics;
 import org.apache.skywalking.apm.network.proto.JVMMetricsServiceGrpc;
@@ -42,6 +44,7 @@ public class JVMMetricServiceHandlerTestCase {
         JVMMetric.Builder metricBuilder = JVMMetric.newBuilder();
         metricBuilder.setTime(System.currentTimeMillis());
 
+        buildGCMetric(metricBuilder);
         buildMemoryMetric(metricBuilder);
         buildMemoryPoolMetric(metricBuilder);
 
@@ -71,4 +74,12 @@ public class JVMMetricServiceHandlerTestCase {
 
         metricBuilder.addMemory(builder);
     }
+
+    private static void buildGCMetric(JVMMetric.Builder metricBuilder) {
+        GC.Builder builder = GC.newBuilder();
+        builder.setPhrase(GCPhrase.NEW);
+        builder.setCount(2);
+
+        metricBuilder.addGc(builder);
+    }
 }
diff --git a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/service/GCMetricService.java b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/service/GCMetricService.java
index dad3d8653e85f7faf669def1d38c6a93a97c3fe3..0729bca9bfeb473f40471d7e4242e1ccd3c438e2 100644
--- a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/service/GCMetricService.java
+++ b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/service/GCMetricService.java
@@ -45,12 +45,16 @@ public class GCMetricService implements IGCMetricService {
     }
 
     @Override public void send(int instanceId, long timeBucket, int phraseValue, long count, long time) {
+        String metricId = instanceId + Const.ID_SPLIT + String.valueOf(phraseValue);
+        String id = timeBucket + Const.ID_SPLIT + metricId;
+
         GCMetric gcMetric = new GCMetric();
-        gcMetric.setId(timeBucket + Const.ID_SPLIT + instanceId + Const.ID_SPLIT + String.valueOf(phraseValue));
+        gcMetric.setId(id);
+        gcMetric.setMetricId(metricId);
         gcMetric.setInstanceId(instanceId);
         gcMetric.setPhrase(phraseValue);
         gcMetric.setCount(count);
-        gcMetric.setTime(time);
+        gcMetric.setTimes(1L);
         gcMetric.setTimeBucket(timeBucket);
 
         logger.debug("push to gc metric graph, id: {}", gcMetric.getId());
diff --git a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCDayMetricTransformNode.java b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCDayMetricTransformNode.java
index 273246231f6cb4f095b8bb6b0bc1328a369ccdc1..edc349e1c64ab2f13a61a4efe4f2e258462fe804 100644
--- a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCDayMetricTransformNode.java
+++ b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCDayMetricTransformNode.java
@@ -36,9 +36,10 @@ public class GCDayMetricTransformNode implements NodeProcessor<GCMetric, GCMetri
 
     @Override public void process(GCMetric gcMetric, Next<GCMetric> next) {
         long timeBucket = TimeBucketUtils.INSTANCE.secondToDay(gcMetric.getTimeBucket());
-        gcMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
-        gcMetric.setTimeBucket(timeBucket);
 
-        next.execute(gcMetric);
+        GCMetric newGCMetric = GCMetricCopy.copy(gcMetric);
+        newGCMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
+        newGCMetric.setTimeBucket(timeBucket);
+        next.execute(newGCMetric);
     }
 }
diff --git a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCHourMetricTransformNode.java b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCHourMetricTransformNode.java
index 4f4615e4fad37252fb14dab044c12551e5aef95c..33d870a0f037d4362ae501c875ae8c7af9fe5539 100644
--- a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCHourMetricTransformNode.java
+++ b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCHourMetricTransformNode.java
@@ -36,9 +36,10 @@ public class GCHourMetricTransformNode implements NodeProcessor<GCMetric, GCMetr
 
     @Override public void process(GCMetric gcMetric, Next<GCMetric> next) {
         long timeBucket = TimeBucketUtils.INSTANCE.secondToHour(gcMetric.getTimeBucket());
-        gcMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
-        gcMetric.setTimeBucket(timeBucket);
 
-        next.execute(gcMetric);
+        GCMetric newGCMetric = GCMetricCopy.copy(gcMetric);
+        newGCMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
+        newGCMetric.setTimeBucket(timeBucket);
+        next.execute(newGCMetric);
     }
 }
diff --git a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMetricCopy.java b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMetricCopy.java
new file mode 100644
index 0000000000000000000000000000000000000000..b914a294ba15e473d24a26af48e3e0c8e83d299e
--- /dev/null
+++ b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMetricCopy.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.skywalking.apm.collector.analysis.jvm.provider.worker.gc;
+
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetric;
+
+/**
+ * @author peng-yongsheng
+ */
+public class GCMetricCopy {
+
+    public static GCMetric copy(GCMetric gcMetric) {
+        GCMetric newGCMetric = new GCMetric();
+        newGCMetric.setId(gcMetric.getId());
+        newGCMetric.setMetricId(gcMetric.getMetricId());
+
+        newGCMetric.setInstanceId(gcMetric.getInstanceId());
+        newGCMetric.setPhrase(gcMetric.getPhrase());
+
+        newGCMetric.setCount(gcMetric.getCount());
+        newGCMetric.setTimes(gcMetric.getTimes());
+
+        newGCMetric.setTimeBucket(gcMetric.getTimeBucket());
+        return newGCMetric;
+    }
+}
diff --git a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMinuteMetricTransformNode.java b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMinuteMetricTransformNode.java
index 49e37ed38ea6de162cc40c5b58d9bc8013b408c4..8f04d315058a6dcd498e49d76e64718790e6606e 100644
--- a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMinuteMetricTransformNode.java
+++ b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMinuteMetricTransformNode.java
@@ -36,9 +36,10 @@ public class GCMinuteMetricTransformNode implements NodeProcessor<GCMetric, GCMe
 
     @Override public void process(GCMetric gcMetric, Next<GCMetric> next) {
         long timeBucket = TimeBucketUtils.INSTANCE.secondToMinute(gcMetric.getTimeBucket());
-        gcMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
-        gcMetric.setTimeBucket(timeBucket);
 
-        next.execute(gcMetric);
+        GCMetric newGCMetric = GCMetricCopy.copy(gcMetric);
+        newGCMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
+        newGCMetric.setTimeBucket(timeBucket);
+        next.execute(newGCMetric);
     }
 }
diff --git a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMonthMetricTransformNode.java b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMonthMetricTransformNode.java
index 540aca2d32bedf1afefc12bc25f2a9c65bd05563..05fd93927e8853c37aaacf6df764771e92475a41 100644
--- a/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMonthMetricTransformNode.java
+++ b/apm-collector/apm-collector-analysis/analysis-jvm/jvm-provider/src/main/java/org/apache/skywalking/apm/collector/analysis/jvm/provider/worker/gc/GCMonthMetricTransformNode.java
@@ -36,9 +36,10 @@ public class GCMonthMetricTransformNode implements NodeProcessor<GCMetric, GCMet
 
     @Override public void process(GCMetric gcMetric, Next<GCMetric> next) {
         long timeBucket = TimeBucketUtils.INSTANCE.secondToMonth(gcMetric.getTimeBucket());
-        gcMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
-        gcMetric.setTimeBucket(timeBucket);
 
-        next.execute(gcMetric);
+        GCMetric newGCMetric = GCMetricCopy.copy(gcMetric);
+        newGCMetric.setId(String.valueOf(timeBucket) + Const.ID_SPLIT + gcMetric.getMetricId());
+        newGCMetric.setTimeBucket(timeBucket);
+        next.execute(newGCMetric);
     }
 }
diff --git a/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/StorageModule.java b/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/StorageModule.java
index 8ac2e96e481b8c26b8a94576151d2d1ced488dc9..c607d8042daa44b950e13c85691a15d2fa8b080a 100644
--- a/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/StorageModule.java
+++ b/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/StorageModule.java
@@ -72,6 +72,10 @@ import org.apache.skywalking.apm.collector.storage.dao.cache.IInstanceCacheDAO;
 import org.apache.skywalking.apm.collector.storage.dao.cache.INetworkAddressCacheDAO;
 import org.apache.skywalking.apm.collector.storage.dao.cache.IServiceNameCacheDAO;
 import org.apache.skywalking.apm.collector.storage.dao.cpump.ICpuSecondMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCDayMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCHourMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCMinuteMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCMonthMetricPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCSecondMetricPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.dao.imp.IInstanceDayMetricPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.dao.imp.IInstanceHourMetricPersistenceDAO;
@@ -148,7 +152,12 @@ public class StorageModule extends Module {
 
     private void addPersistenceDAO(List<Class> classes) {
         classes.add(ICpuSecondMetricPersistenceDAO.class);
+
         classes.add(IGCSecondMetricPersistenceDAO.class);
+        classes.add(IGCMinuteMetricPersistenceDAO.class);
+        classes.add(IGCHourMetricPersistenceDAO.class);
+        classes.add(IGCDayMetricPersistenceDAO.class);
+        classes.add(IGCMonthMetricPersistenceDAO.class);
 
         classes.add(IMemorySecondMetricPersistenceDAO.class);
         classes.add(IMemoryMinuteMetricPersistenceDAO.class);
diff --git a/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetric.java b/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetric.java
index 68050dc2d205702b39c5e8a342f2fba6d38ca944..3e4f592183d4caee7b37ff5cea9afe1b474c344b 100644
--- a/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetric.java
+++ b/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetric.java
@@ -20,6 +20,7 @@ package org.apache.skywalking.apm.collector.storage.table.jvm;
 
 import org.apache.skywalking.apm.collector.core.data.Column;
 import org.apache.skywalking.apm.collector.core.data.StreamData;
+import org.apache.skywalking.apm.collector.core.data.operator.AddOperation;
 import org.apache.skywalking.apm.collector.core.data.operator.CoverOperation;
 import org.apache.skywalking.apm.collector.core.data.operator.NonOperation;
 
@@ -34,8 +35,8 @@ public class GCMetric extends StreamData {
     };
 
     private static final Column[] LONG_COLUMNS = {
-        new Column(GCMetricTable.COLUMN_COUNT, new CoverOperation()),
-        new Column(GCMetricTable.COLUMN_TIME, new CoverOperation()),
+        new Column(GCMetricTable.COLUMN_COUNT, new AddOperation()),
+        new Column(GCMetricTable.COLUMN_TIMES, new AddOperation()),
         new Column(GCMetricTable.COLUMN_TIME_BUCKET, new CoverOperation()),
     };
 
@@ -78,12 +79,12 @@ public class GCMetric extends StreamData {
         setDataLong(0, count);
     }
 
-    public Long getTime() {
+    public Long getTimes() {
         return getDataLong(1);
     }
 
-    public void setTime(Long time) {
-        setDataLong(1, time);
+    public void setTimes(Long times) {
+        setDataLong(1, times);
     }
 
     public Long getTimeBucket() {
diff --git a/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetricTable.java b/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetricTable.java
index eb42e15275f2b964defdcceeb9b1f3291c8cdc4e..7644364ed18fae41b185e48fbc698db7d7f4dfd4 100644
--- a/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetricTable.java
+++ b/apm-collector/apm-collector-storage/collector-storage-define/src/main/java/org/apache/skywalking/apm/collector/storage/table/jvm/GCMetricTable.java
@@ -16,7 +16,6 @@
  *
  */
 
-
 package org.apache.skywalking.apm.collector.storage.table.jvm;
 
 import org.apache.skywalking.apm.collector.core.data.CommonTable;
@@ -29,5 +28,5 @@ public class GCMetricTable extends CommonTable {
     public static final String COLUMN_INSTANCE_ID = "instance_id";
     public static final String COLUMN_PHRASE = "phrase";
     public static final String COLUMN_COUNT = "count";
-    public static final String COLUMN_TIME = "time";
+    public static final String COLUMN_TIMES = "times";
 }
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/StorageModuleEsProvider.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/StorageModuleEsProvider.java
index d460d82c713e51f3bce84b518fefac1dc1d49a4c..d4225309e078f64f7a211a00a31a16ea28fc0056 100644
--- a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/StorageModuleEsProvider.java
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/StorageModuleEsProvider.java
@@ -81,6 +81,10 @@ import org.apache.skywalking.apm.collector.storage.dao.cache.IInstanceCacheDAO;
 import org.apache.skywalking.apm.collector.storage.dao.cache.INetworkAddressCacheDAO;
 import org.apache.skywalking.apm.collector.storage.dao.cache.IServiceNameCacheDAO;
 import org.apache.skywalking.apm.collector.storage.dao.cpump.ICpuSecondMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCDayMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCHourMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCMinuteMetricPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCMonthMetricPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.dao.gcmp.IGCSecondMetricPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.dao.imp.IInstanceDayMetricPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.dao.imp.IInstanceHourMetricPersistenceDAO;
@@ -168,6 +172,10 @@ import org.apache.skywalking.apm.collector.storage.es.dao.cache.InstanceEsCacheD
 import org.apache.skywalking.apm.collector.storage.es.dao.cache.NetworkAddressEsCacheDAO;
 import org.apache.skywalking.apm.collector.storage.es.dao.cache.ServiceNameEsCacheDAO;
 import org.apache.skywalking.apm.collector.storage.es.dao.cpump.CpuSecondMetricEsPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.es.dao.gcmp.GCDayMetricEsPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.es.dao.gcmp.GCHourMetricEsPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.es.dao.gcmp.GCMinuteMetricEsPersistenceDAO;
+import org.apache.skywalking.apm.collector.storage.es.dao.gcmp.GCMonthMetricEsPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.es.dao.gcmp.GCSecondMetricEsPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.es.dao.imp.InstanceDayMetricEsPersistenceDAO;
 import org.apache.skywalking.apm.collector.storage.es.dao.imp.InstanceHourMetricEsPersistenceDAO;
@@ -294,7 +302,12 @@ public class StorageModuleEsProvider extends ModuleProvider {
 
     private void registerPersistenceDAO() throws ServiceNotProvidedException {
         this.registerServiceImplementation(ICpuSecondMetricPersistenceDAO.class, new CpuSecondMetricEsPersistenceDAO(elasticSearchClient));
+
         this.registerServiceImplementation(IGCSecondMetricPersistenceDAO.class, new GCSecondMetricEsPersistenceDAO(elasticSearchClient));
+        this.registerServiceImplementation(IGCMinuteMetricPersistenceDAO.class, new GCMinuteMetricEsPersistenceDAO(elasticSearchClient));
+        this.registerServiceImplementation(IGCHourMetricPersistenceDAO.class, new GCHourMetricEsPersistenceDAO(elasticSearchClient));
+        this.registerServiceImplementation(IGCDayMetricPersistenceDAO.class, new GCDayMetricEsPersistenceDAO(elasticSearchClient));
+        this.registerServiceImplementation(IGCMonthMetricPersistenceDAO.class, new GCMonthMetricEsPersistenceDAO(elasticSearchClient));
 
         this.registerServiceImplementation(IMemorySecondMetricPersistenceDAO.class, new MemorySecondMetricEsPersistenceDAO(elasticSearchClient));
         this.registerServiceImplementation(IMemoryMinuteMetricPersistenceDAO.class, new MemoryMinuteMetricEsPersistenceDAO(elasticSearchClient));
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/dao/gcmp/AbstractGCMetricEsPersistenceDAO.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/dao/gcmp/AbstractGCMetricEsPersistenceDAO.java
index 893626c8579fbfe9ddc8a4b940201db9436f43f0..b87d5fb33ac73b8109e0cfddf777a3e7651b59ca 100644
--- a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/dao/gcmp/AbstractGCMetricEsPersistenceDAO.java
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/dao/gcmp/AbstractGCMetricEsPersistenceDAO.java
@@ -39,7 +39,19 @@ public abstract class AbstractGCMetricEsPersistenceDAO extends AbstractPersisten
     }
 
     @Override protected final GCMetric esDataToStreamData(Map<String, Object> source) {
-        return null;
+        GCMetric gcMetric = new GCMetric();
+        gcMetric.setId((String)source.get(GCMetricTable.COLUMN_ID));
+        gcMetric.setMetricId((String)source.get(GCMetricTable.COLUMN_METRIC_ID));
+
+        gcMetric.setInstanceId(((Number)source.get(GCMetricTable.COLUMN_INSTANCE_ID)).intValue());
+        gcMetric.setPhrase(((Number)source.get(GCMetricTable.COLUMN_PHRASE)).intValue());
+
+        gcMetric.setCount(((Number)source.get(GCMetricTable.COLUMN_COUNT)).longValue());
+        gcMetric.setTimes(((Number)source.get(GCMetricTable.COLUMN_TIMES)).longValue());
+
+        gcMetric.setTimeBucket(((Number)source.get(GCMetricTable.COLUMN_TIME_BUCKET)).longValue());
+
+        return gcMetric;
     }
 
     @Override protected final Map<String, Object> esStreamDataToEsData(GCMetric streamData) {
@@ -50,7 +62,7 @@ public abstract class AbstractGCMetricEsPersistenceDAO extends AbstractPersisten
         source.put(GCMetricTable.COLUMN_INSTANCE_ID, streamData.getInstanceId());
         source.put(GCMetricTable.COLUMN_PHRASE, streamData.getPhrase());
         source.put(GCMetricTable.COLUMN_COUNT, streamData.getCount());
-        source.put(GCMetricTable.COLUMN_TIME, streamData.getTime());
+        source.put(GCMetricTable.COLUMN_TIMES, streamData.getTimes());
         source.put(GCMetricTable.COLUMN_TIME_BUCKET, streamData.getTimeBucket());
 
         return source;
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/GCMetricEsTableDefine.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/AbstractGCMetricEsTableDefine.java
similarity index 74%
rename from apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/GCMetricEsTableDefine.java
rename to apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/AbstractGCMetricEsTableDefine.java
index 235eed56c1470843b92f2ea9340741261720d697..efbdc7fd0daed8ab64684a609ab0890d7c438850 100644
--- a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/GCMetricEsTableDefine.java
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/AbstractGCMetricEsTableDefine.java
@@ -16,31 +16,28 @@
  *
  */
 
-
-package org.apache.skywalking.apm.collector.storage.es.define;
+package org.apache.skywalking.apm.collector.storage.es.define.gc;
 
 import org.apache.skywalking.apm.collector.storage.es.base.define.ElasticSearchColumnDefine;
-import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
 import org.apache.skywalking.apm.collector.storage.es.base.define.ElasticSearchTableDefine;
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
 
 /**
  * @author peng-yongsheng
  */
-public class GCMetricEsTableDefine extends ElasticSearchTableDefine {
-
-    public GCMetricEsTableDefine() {
-        super(GCMetricTable.TABLE);
-    }
+public abstract class AbstractGCMetricEsTableDefine extends ElasticSearchTableDefine {
 
-    @Override public int refreshInterval() {
-        return 1;
+    public AbstractGCMetricEsTableDefine(String name) {
+        super(name);
     }
 
-    @Override public void initialize() {
+    @Override public final void initialize() {
+        addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_ID, ElasticSearchColumnDefine.Type.Keyword.name()));
+        addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_METRIC_ID, ElasticSearchColumnDefine.Type.Keyword.name()));
         addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_INSTANCE_ID, ElasticSearchColumnDefine.Type.Integer.name()));
         addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_PHRASE, ElasticSearchColumnDefine.Type.Integer.name()));
         addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_COUNT, ElasticSearchColumnDefine.Type.Long.name()));
-        addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_TIME, ElasticSearchColumnDefine.Type.Long.name()));
+        addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_TIMES, ElasticSearchColumnDefine.Type.Long.name()));
         addColumn(new ElasticSearchColumnDefine(GCMetricTable.COLUMN_TIME_BUCKET, ElasticSearchColumnDefine.Type.Long.name()));
     }
 }
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCDayMetricEsTableDefine.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCDayMetricEsTableDefine.java
new file mode 100644
index 0000000000000000000000000000000000000000..7cc793382e714f4c7dea43a4650679c93ea5ac8d
--- /dev/null
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCDayMetricEsTableDefine.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.skywalking.apm.collector.storage.es.define.gc;
+
+import org.apache.skywalking.apm.collector.core.storage.TimePyramid;
+import org.apache.skywalking.apm.collector.core.util.Const;
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
+
+/**
+ * @author peng-yongsheng
+ */
+public class GCDayMetricEsTableDefine extends AbstractGCMetricEsTableDefine {
+
+    public GCDayMetricEsTableDefine() {
+        super(GCMetricTable.TABLE + Const.ID_SPLIT + TimePyramid.Day.getName());
+    }
+
+    @Override public int refreshInterval() {
+        return 1;
+    }
+}
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCHourMetricEsTableDefine.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCHourMetricEsTableDefine.java
new file mode 100644
index 0000000000000000000000000000000000000000..d5bcbfc723c174b25b85b5268d585740ffc3cf54
--- /dev/null
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCHourMetricEsTableDefine.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.skywalking.apm.collector.storage.es.define.gc;
+
+import org.apache.skywalking.apm.collector.core.storage.TimePyramid;
+import org.apache.skywalking.apm.collector.core.util.Const;
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
+
+/**
+ * @author peng-yongsheng
+ */
+public class GCHourMetricEsTableDefine extends AbstractGCMetricEsTableDefine {
+
+    public GCHourMetricEsTableDefine() {
+        super(GCMetricTable.TABLE + Const.ID_SPLIT + TimePyramid.Hour.getName());
+    }
+
+    @Override public int refreshInterval() {
+        return 1;
+    }
+}
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCMinuteMetricEsTableDefine.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCMinuteMetricEsTableDefine.java
new file mode 100644
index 0000000000000000000000000000000000000000..ef0cefb3f787ed46e29b5d86056616f6384290d6
--- /dev/null
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCMinuteMetricEsTableDefine.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.skywalking.apm.collector.storage.es.define.gc;
+
+import org.apache.skywalking.apm.collector.core.storage.TimePyramid;
+import org.apache.skywalking.apm.collector.core.util.Const;
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
+
+/**
+ * @author peng-yongsheng
+ */
+public class GCMinuteMetricEsTableDefine extends AbstractGCMetricEsTableDefine {
+
+    public GCMinuteMetricEsTableDefine() {
+        super(GCMetricTable.TABLE + Const.ID_SPLIT + TimePyramid.Minute.getName());
+    }
+
+    @Override public int refreshInterval() {
+        return 1;
+    }
+}
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCMonthMetricEsTableDefine.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCMonthMetricEsTableDefine.java
new file mode 100644
index 0000000000000000000000000000000000000000..c107635715f8e30fbdb79b895741dae5e9965a54
--- /dev/null
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCMonthMetricEsTableDefine.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.skywalking.apm.collector.storage.es.define.gc;
+
+import org.apache.skywalking.apm.collector.core.storage.TimePyramid;
+import org.apache.skywalking.apm.collector.core.util.Const;
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
+
+/**
+ * @author peng-yongsheng
+ */
+public class GCMonthMetricEsTableDefine extends AbstractGCMetricEsTableDefine {
+
+    public GCMonthMetricEsTableDefine() {
+        super(GCMetricTable.TABLE + Const.ID_SPLIT + TimePyramid.Month.getName());
+    }
+
+    @Override public int refreshInterval() {
+        return 1;
+    }
+}
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCSecondMetricEsTableDefine.java b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCSecondMetricEsTableDefine.java
new file mode 100644
index 0000000000000000000000000000000000000000..b9d4800b796a9573edeeb3e18b2338d8859c4a89
--- /dev/null
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/define/gc/GCSecondMetricEsTableDefine.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.skywalking.apm.collector.storage.es.define.gc;
+
+import org.apache.skywalking.apm.collector.core.storage.TimePyramid;
+import org.apache.skywalking.apm.collector.core.util.Const;
+import org.apache.skywalking.apm.collector.storage.table.jvm.GCMetricTable;
+
+/**
+ * @author peng-yongsheng
+ */
+public class GCSecondMetricEsTableDefine extends AbstractGCMetricEsTableDefine {
+
+    public GCSecondMetricEsTableDefine() {
+        super(GCMetricTable.TABLE + Const.ID_SPLIT + TimePyramid.Second.getName());
+    }
+
+    @Override public int refreshInterval() {
+        return 1;
+    }
+}
diff --git a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/resources/META-INF/defines/storage.define b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/resources/META-INF/defines/storage.define
index ca43e611e9269513025748fe9f36efd9bc157b0f..aae5c67bf42160d4b11e7efba8e757e4153baea7 100644
--- a/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/resources/META-INF/defines/storage.define
+++ b/apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/resources/META-INF/defines/storage.define
@@ -75,4 +75,10 @@ org.apache.skywalking.apm.collector.storage.es.define.memory.MemorySecondMetricE
 org.apache.skywalking.apm.collector.storage.es.define.memory.MemoryMinuteMetricEsTableDefine
 org.apache.skywalking.apm.collector.storage.es.define.memory.MemoryHourMetricEsTableDefine
 org.apache.skywalking.apm.collector.storage.es.define.memory.MemoryDayMetricEsTableDefine
-org.apache.skywalking.apm.collector.storage.es.define.memory.MemoryMonthMetricEsTableDefine
\ No newline at end of file
+org.apache.skywalking.apm.collector.storage.es.define.memory.MemoryMonthMetricEsTableDefine
+
+org.apache.skywalking.apm.collector.storage.es.define.gc.GCSecondMetricEsTableDefine
+org.apache.skywalking.apm.collector.storage.es.define.gc.GCMinuteMetricEsTableDefine
+org.apache.skywalking.apm.collector.storage.es.define.gc.GCHourMetricEsTableDefine
+org.apache.skywalking.apm.collector.storage.es.define.gc.GCDayMetricEsTableDefine
+org.apache.skywalking.apm.collector.storage.es.define.gc.GCMonthMetricEsTableDefine
\ No newline at end of file
diff --git a/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/dao/GCSecondMetricH2PersistenceDAO.java b/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/dao/GCSecondMetricH2PersistenceDAO.java
index 2904a14c79cd54528acacc93fc05d5bd8e319bee..d6c9e3388bc98e60f2d757d41031daeb785cf104 100644
--- a/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/dao/GCSecondMetricH2PersistenceDAO.java
+++ b/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/dao/GCSecondMetricH2PersistenceDAO.java
@@ -49,7 +49,6 @@ public class GCSecondMetricH2PersistenceDAO extends H2DAO implements IGCSecondMe
         source.put(GCMetricTable.COLUMN_INSTANCE_ID, data.getInstanceId());
         source.put(GCMetricTable.COLUMN_PHRASE, data.getPhrase());
         source.put(GCMetricTable.COLUMN_COUNT, data.getCount());
-        source.put(GCMetricTable.COLUMN_TIME, data.getTime());
         source.put(GCMetricTable.COLUMN_TIME_BUCKET, data.getTimeBucket());
 
         String sql = SqlBuilder.buildBatchInsertSql(GCMetricTable.TABLE, source.keySet());
diff --git a/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/define/GCMetricH2TableDefine.java b/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/define/GCMetricH2TableDefine.java
index c6e3164b52eb7ab746555250a61b2ed9ea0b050a..c62e38944be05b69c86692ad2fb793d84d700800 100644
--- a/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/define/GCMetricH2TableDefine.java
+++ b/apm-collector/apm-collector-storage/collector-storage-h2-provider/src/main/java/org/apache/skywalking/apm/collector/storage/h2/define/GCMetricH2TableDefine.java
@@ -37,7 +37,7 @@ public class GCMetricH2TableDefine extends H2TableDefine {
         addColumn(new H2ColumnDefine(GCMetricTable.COLUMN_INSTANCE_ID, H2ColumnDefine.Type.Int.name()));
         addColumn(new H2ColumnDefine(GCMetricTable.COLUMN_PHRASE, H2ColumnDefine.Type.Int.name()));
         addColumn(new H2ColumnDefine(GCMetricTable.COLUMN_COUNT, H2ColumnDefine.Type.Bigint.name()));
-        addColumn(new H2ColumnDefine(GCMetricTable.COLUMN_TIME, H2ColumnDefine.Type.Bigint.name()));
+        addColumn(new H2ColumnDefine(GCMetricTable.COLUMN_TIMES, H2ColumnDefine.Type.Bigint.name()));
         addColumn(new H2ColumnDefine(GCMetricTable.COLUMN_TIME_BUCKET, H2ColumnDefine.Type.Bigint.name()));
     }
 }