diff --git a/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/constants/ValueConstants.java b/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/constants/ValueConstants.java
index 005127563..b6246daf4 100644
--- a/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/constants/ValueConstants.java
+++ b/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/constants/ValueConstants.java
@@ -26,42 +26,53 @@ public class ValueConstants {
     /**
      * The constant DEFAULT_GROUP.
      */
-    public static final String   DEFAULT_GROUP                 = "DEFAULT_GROUP";
+    public static final String   DEFAULT_GROUP                         = "DEFAULT_GROUP";
 
     /**
      * The constant DEFAULT_ZONE.
      */
-    public static final String   DEFAULT_ZONE                  = "DEFAULT_ZONE";
+    public static final String   DEFAULT_ZONE                          = "DEFAULT_ZONE";
 
-    public static final String   DEFAULT_INSTANCE_ID           = "DEFAULT_INSTANCE_ID";
+    public static final String   DEFAULT_INSTANCE_ID                   = "DEFAULT_INSTANCE_ID";
 
     /**
      * The constant DEFAULT_DATA_CENTER.
      */
-    public static final String   DEFAULT_DATA_CENTER           = "DefaultDataCenter";
+    public static final String   DEFAULT_DATA_CENTER                   = "DefaultDataCenter";
 
-    public static final long     DEFAULT_NO_DATUM_VERSION      = 1L;
+    public static final long     DEFAULT_NO_DATUM_VERSION              = 1L;
 
-    private static final Integer SYSTEM_RAFT_PORT              = Integer
-                                                                   .getInteger("RAFT_SERVER_PORT");
+    private static final Integer SYSTEM_RAFT_PORT                      = Integer
+                                                                           .getInteger("RAFT_SERVER_PORT");
 
-    public static final int      RAFT_SERVER_PORT              = SYSTEM_RAFT_PORT != null ? SYSTEM_RAFT_PORT
-                                                                   : 9614;
+    public static final int      RAFT_SERVER_PORT                      = SYSTEM_RAFT_PORT != null ? SYSTEM_RAFT_PORT
+                                                                           : 9614;
 
-    private static final String  SYSTEM_RAFT_GROUP             = System
-                                                                   .getProperty("RAFT_SERVER_GROUP");
+    private static final String  SYSTEM_RAFT_GROUP                     = System
+                                                                           .getProperty("RAFT_SERVER_GROUP");
 
-    public static final String   RAFT_SERVER_GROUP             = SYSTEM_RAFT_GROUP != null ? SYSTEM_RAFT_GROUP
-                                                                   : "RegistryGroup";
+    public static final String   RAFT_SERVER_GROUP                     = SYSTEM_RAFT_GROUP != null ? SYSTEM_RAFT_GROUP
+                                                                           : "RegistryGroup";
 
-    public static final String   STOP_PUSH_DATA_SWITCH_DATA_ID = "session.stop.push.data.switch#@#9600#@#CONFIG";
+    public static final String   STOP_PUSH_DATA_SWITCH_DATA_ID         = "session.stop.push.data.switch#@#9600#@#CONFIG";
 
-    public static final String   BLACK_LIST_DATA_ID            = "session.blacklist.data#@#9600#@#CONFIG";
+    public static final String   BLACK_LIST_DATA_ID                    = "session.blacklist.data#@#9600#@#CONFIG";
 
-    public static final String   ENABLE_DATA_RENEW_SNAPSHOT    = "session.enable.datum.renew.switch#@#9600#@#CONFIG";
+    public static final String   ENABLE_DATA_RENEW_SNAPSHOT            = "session.enable.datum.renew.switch#@#9600#@#CONFIG";
 
-    public static final String   ENABLE_DATA_DATUM_EXPIRE      = "data.enable.datum.expire.switch#@#9600#@#CONFIG";
+    public static final String   ENABLE_DATA_DATUM_EXPIRE              = "data.enable.datum.expire.switch#@#9600#@#CONFIG";
 
-    public static final String   LOGGER_NAME_RENEW             = "RENEW-LOGGER";
+    public static final String   LOGGER_NAME_RENEW                     = "RENEW-LOGGER";
+
+    /**
+     * switch key for dataId sensitive is disable or not
+     */
+    public static final String   DISABLE_DATA_ID_CASE_SENSITIVE_SWITCH = "disable.dataId.case.sensitive";
+    /**
+     * switch for dataId sensitive is disable or not, default value is false which means dataId is case sensitive
+     */
+    public static final Boolean  DISABLE_DATA_ID_CASE_SENSITIVE        = Boolean
+                                                                           .valueOf(System
+                                                                               .getProperty(DISABLE_DATA_ID_CASE_SENSITIVE_SWITCH));
 
 }
diff --git a/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/store/DataInfo.java b/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/store/DataInfo.java
index f519b44b0..02e5ee7f2 100644
--- a/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/store/DataInfo.java
+++ b/server/common/model/src/main/java/com/alipay/sofa/registry/common/model/store/DataInfo.java
@@ -16,6 +16,8 @@
  */
 package com.alipay.sofa.registry.common.model.store;
 
+import com.alipay.sofa.registry.common.model.constants.ValueConstants;
+
 import java.io.Serializable;
 
 /**
@@ -61,7 +63,11 @@ public static String toDataInfoId(String dataId, String instanceId, String dataT
         if (dataId == null || dataId.isEmpty()) {
             throw new IllegalArgumentException("error dataId:" + dataId);
         }
-        buf.append(dataId);
+        if (ValueConstants.DISABLE_DATA_ID_CASE_SENSITIVE) {
+            buf.append(dataId.toUpperCase());
+        } else {
+            buf.append(dataId);
+        }
 
         if (instanceId == null || instanceId.isEmpty()) {
             throw new IllegalArgumentException("error instanceId:" + instanceId);
diff --git a/server/common/util/src/main/java/com/alipay/sofa/registry/task/listener/TaskEvent.java b/server/common/util/src/main/java/com/alipay/sofa/registry/task/listener/TaskEvent.java
index 7b505d878..a46f40f8d 100644
--- a/server/common/util/src/main/java/com/alipay/sofa/registry/task/listener/TaskEvent.java
+++ b/server/common/util/src/main/java/com/alipay/sofa/registry/task/listener/TaskEvent.java
@@ -41,7 +41,9 @@ public enum TaskType {
         RECEIVED_DATA_CONFIG_PUSH_TASK("ReceivedDataConfigPushTask"), //
         CANCEL_DATA_TASK("CancelDataTask"), //
         SYNC_PUBLISHER_TASK("SyncPublisherTask"), //
+        SYNC_UNPUBLISHER_TASK("SyncUnPublisherTask"), //
         SYNC_SUBSCRIBER_TASK("SyncSubscriberTask"), //
+        SYNC_UNSUBSCRIBER_TASK("SyncUnSubscriberTask"), //
         SESSION_REGISTER_DATA_TASK("SessionRegisterDataTask"), //
         PROVIDE_DATA_CHANGE_FETCH_TASK("ProvideDataChangeFetchTask"), //
         SUBSCRIBER_MULTI_FETCH_TASK("SubscriberMultiFetchTask"), //