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rong pushed a commit to branch remove-sync-entry
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit fc06d7750bf2bf24f9c7d85549d86176007a490c
Author: Steve Yurong Su <[email protected]>
AuthorDate: Sat Jun 17 03:34:56 2023 +0800

    refactor
---
 .../request/write/sync/PreCreatePipePlanV1.java    |   2 +-
 .../request/write/sync/RecordPipeMessagePlan.java  |   2 +-
 .../request/write/sync/SetPipeStatusPlanV1.java    |   2 +-
 .../procedure/impl/sync/CreatePipeProcedure.java   |   3 +-
 .../procedure/impl/sync/DropPipeProcedure.java     |   1 +
 .../procedure/impl/sync/StartPipeProcedure.java    |   3 +-
 .../procedure/impl/sync/StopPipeProcedure.java     |   3 +-
 .../confignode/procedure/store/ProcedureType.java  |   2 +-
 .../request/ConfigPhysicalPlanSerDeTest.java       |   8 +-
 .../exception/sync/PipeAlreadyExistException.java  |  31 ---
 .../commons/exception/sync/PipeException.java      |  36 ---
 .../exception/sync/PipeNotExistException.java      |  25 ---
 .../exception/sync/PipeServerException.java        |  34 ---
 .../sync/PipeSinkAlreadyExistException.java        |  25 ---
 .../exception/sync/PipeSinkBeingUsedException.java |  27 ---
 .../commons/exception/sync/PipeSinkException.java  |  42 ----
 .../exception/sync/PipeSinkNotExistException.java  |  25 ---
 .../exception/sync/SyncConnectionException.java    |  39 ----
 .../exception/sync/SyncHandshakeException.java     |  26 ---
 .../iotdb/commons/sync/{pipe => }/PipeInfo.java    |  46 +---
 .../iotdb/commons/sync/{pipe => }/PipeMessage.java |   5 +-
 .../iotdb/commons/sync/{pipe => }/PipeStatus.java  |   3 +-
 .../commons/sync/{pipe => }/TsFilePipeInfo.java    |  36 +--
 .../iotdb/commons/sync/metadata/SyncMetadata.java  | 241 ---------------------
 .../commons/sync/persistence/SyncLogReader.java    | 111 ----------
 .../commons/sync/persistence/SyncLogWriter.java    |  94 --------
 .../iotdb/commons/sync/pipe/SyncOperation.java     |  29 ---
 .../iotdb/commons/sync/pipesink/IoTDBPipeSink.java | 166 --------------
 .../iotdb/commons/sync/pipesink/PipeSink.java      |  88 --------
 .../commons/sync/metedata/SyncMetadataTest.java    | 189 ----------------
 .../connector/lagacy/IoTDBSyncReceiverV1_1.java    |  10 +-
 .../lagacy/exception/SyncDataLoadException.java    |   9 +-
 .../connector/lagacy/pipedata/TsFilePipeData.java  |   2 +-
 .../lagacy/pipedata/load/DeletionLoader.java       |   8 +-
 .../connector/lagacy/pipedata/load/ILoader.java    |   4 +-
 .../lagacy/pipedata/load/TsFileLoader.java         |   6 +-
 .../pipedata/queue/BufferedPipeDataQueue.java      |   4 +-
 .../lagacy}/transport/SyncIdentityInfo.java        |   2 +-
 .../pipe/connector/lagacy}/utils/SyncConstant.java |  31 +--
 .../pipe/connector/lagacy}/utils/SyncPathUtil.java |  69 +-----
 40 files changed, 53 insertions(+), 1436 deletions(-)

diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/PreCreatePipePlanV1.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/PreCreatePipePlanV1.java
index 24c3125fc11..849f4947ac6 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/PreCreatePipePlanV1.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/PreCreatePipePlanV1.java
@@ -18,7 +18,7 @@
  */
 package org.apache.iotdb.confignode.consensus.request.write.sync;
 
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
+import org.apache.iotdb.commons.sync.PipeInfo;
 import org.apache.iotdb.confignode.consensus.request.ConfigPhysicalPlan;
 import org.apache.iotdb.confignode.consensus.request.ConfigPhysicalPlanType;
 
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/RecordPipeMessagePlan.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/RecordPipeMessagePlan.java
index 3fe6b8c8fae..da5c542cf50 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/RecordPipeMessagePlan.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/RecordPipeMessagePlan.java
@@ -18,7 +18,7 @@
  */
 package org.apache.iotdb.confignode.consensus.request.write.sync;
 
-import org.apache.iotdb.commons.sync.pipe.PipeMessage;
+import org.apache.iotdb.commons.sync.PipeMessage;
 import org.apache.iotdb.commons.utils.BasicStructureSerDeUtil;
 import org.apache.iotdb.confignode.consensus.request.ConfigPhysicalPlan;
 import org.apache.iotdb.confignode.consensus.request.ConfigPhysicalPlanType;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/SetPipeStatusPlanV1.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/SetPipeStatusPlanV1.java
index 4aa0f9668e6..0f0472cc22f 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/SetPipeStatusPlanV1.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/write/sync/SetPipeStatusPlanV1.java
@@ -19,7 +19,7 @@
 
 package org.apache.iotdb.confignode.consensus.request.write.sync;
 
-import org.apache.iotdb.commons.sync.pipe.PipeStatus;
+import org.apache.iotdb.commons.sync.PipeStatus;
 import org.apache.iotdb.confignode.consensus.request.ConfigPhysicalPlan;
 import org.apache.iotdb.confignode.consensus.request.ConfigPhysicalPlanType;
 import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/CreatePipeProcedure.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/CreatePipeProcedure.java
index b1f22e57111..2e0f490222b 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/CreatePipeProcedure.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/CreatePipeProcedure.java
@@ -18,7 +18,7 @@
  */
 package org.apache.iotdb.confignode.procedure.impl.sync;
 
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
+import org.apache.iotdb.commons.sync.PipeInfo;
 import org.apache.iotdb.confignode.procedure.Procedure;
 import org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv;
 import org.apache.iotdb.confignode.procedure.exception.ProcedureException;
@@ -35,6 +35,7 @@ import java.util.Objects;
 import java.util.Set;
 
 // Empty procedure for old sync, restored only for compatibility
+@Deprecated
 public class CreatePipeProcedure extends Procedure<ConfigNodeProcedureEnv> {
 
   private PipeInfo pipeInfo;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/DropPipeProcedure.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/DropPipeProcedure.java
index aa61bc8949f..96d6bc9dcc6 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/DropPipeProcedure.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/DropPipeProcedure.java
@@ -32,6 +32,7 @@ import java.nio.ByteBuffer;
 import java.util.Objects;
 
 // Empty procedure for old sync, restored only for compatibility
+@Deprecated
 public class DropPipeProcedure extends Procedure<ConfigNodeProcedureEnv> {
 
   private String pipeName;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StartPipeProcedure.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StartPipeProcedure.java
index 658d319cbd3..5d24aca8b92 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StartPipeProcedure.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StartPipeProcedure.java
@@ -18,7 +18,7 @@
  */
 package org.apache.iotdb.confignode.procedure.impl.sync;
 
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
+import org.apache.iotdb.commons.sync.PipeInfo;
 import org.apache.iotdb.confignode.procedure.Procedure;
 import org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv;
 import org.apache.iotdb.confignode.procedure.exception.ProcedureException;
@@ -35,6 +35,7 @@ import java.util.Objects;
 import java.util.Set;
 
 // Empty procedure for old sync, used only for compatibility
+@Deprecated
 public class StartPipeProcedure extends Procedure<ConfigNodeProcedureEnv> {
 
   private String pipeName;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StopPipeProcedure.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StopPipeProcedure.java
index 88f4d61edd8..c26caeeca9a 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StopPipeProcedure.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/sync/StopPipeProcedure.java
@@ -18,7 +18,7 @@
  */
 package org.apache.iotdb.confignode.procedure.impl.sync;
 
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
+import org.apache.iotdb.commons.sync.PipeInfo;
 import org.apache.iotdb.confignode.procedure.Procedure;
 import org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv;
 import org.apache.iotdb.confignode.procedure.exception.ProcedureException;
@@ -35,6 +35,7 @@ import java.util.Objects;
 import java.util.Set;
 
 // Empty procedure for old sync, used only for compatibility
+@Deprecated
 public class StopPipeProcedure extends Procedure<ConfigNodeProcedureEnv> {
 
   private String pipeName;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/store/ProcedureType.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/store/ProcedureType.java
index 31bb30aa7c4..92a0a4d87b8 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/procedure/store/ProcedureType.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/procedure/store/ProcedureType.java
@@ -44,7 +44,7 @@ public enum ProcedureType {
   CREATE_TRIGGER_PROCEDURE((short) 400),
   DROP_TRIGGER_PROCEDURE((short) 401),
 
-  /** Old sync */
+  /** Legacy enum for sync */
   CREATE_PIPE_PROCEDURE((short) 500),
   START_PIPE_PROCEDURE((short) 501),
   STOP_PIPE_PROCEDURE((short) 502),
diff --git 
a/confignode/src/test/java/org/apache/iotdb/confignode/consensus/request/ConfigPhysicalPlanSerDeTest.java
 
b/confignode/src/test/java/org/apache/iotdb/confignode/consensus/request/ConfigPhysicalPlanSerDeTest.java
index 9c3be2ac3a1..a60b8605d0e 100644
--- 
a/confignode/src/test/java/org/apache/iotdb/confignode/consensus/request/ConfigPhysicalPlanSerDeTest.java
+++ 
b/confignode/src/test/java/org/apache/iotdb/confignode/consensus/request/ConfigPhysicalPlanSerDeTest.java
@@ -45,10 +45,10 @@ import org.apache.iotdb.commons.pipe.task.meta.PipeMeta;
 import org.apache.iotdb.commons.pipe.task.meta.PipeRuntimeMeta;
 import org.apache.iotdb.commons.pipe.task.meta.PipeStaticMeta;
 import org.apache.iotdb.commons.pipe.task.meta.PipeTaskMeta;
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
-import org.apache.iotdb.commons.sync.pipe.PipeMessage;
-import org.apache.iotdb.commons.sync.pipe.PipeStatus;
-import org.apache.iotdb.commons.sync.pipe.TsFilePipeInfo;
+import org.apache.iotdb.commons.sync.PipeInfo;
+import org.apache.iotdb.commons.sync.PipeMessage;
+import org.apache.iotdb.commons.sync.PipeStatus;
+import org.apache.iotdb.commons.sync.TsFilePipeInfo;
 import org.apache.iotdb.commons.trigger.TriggerInformation;
 import org.apache.iotdb.confignode.consensus.request.auth.AuthorPlan;
 import 
org.apache.iotdb.confignode.consensus.request.read.database.CountDatabasePlan;
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeAlreadyExistException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeAlreadyExistException.java
deleted file mode 100644
index 0cfa5fec0d4..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeAlreadyExistException.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-import org.apache.iotdb.commons.sync.pipe.PipeStatus;
-
-public class PipeAlreadyExistException extends PipeException {
-  public PipeAlreadyExistException(String pipeName) {
-    super(String.format("PIPE [%s] already exists in IoTDB.", pipeName));
-  }
-
-  public PipeAlreadyExistException(String pipeName, PipeStatus status) {
-    super(String.format("PIPE [%s] is %s, please retry after drop it.", 
pipeName, status.name()));
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeException.java
deleted file mode 100644
index 4c4347ebd2b..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeException.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-import org.apache.iotdb.commons.exception.IoTDBException;
-import org.apache.iotdb.rpc.TSStatusCode;
-
-public class PipeException extends IoTDBException {
-
-  private static final long serialVersionUID = -7312720445194413492L;
-
-  public PipeException(String message, int errorCode) {
-    super(message, errorCode);
-  }
-
-  public PipeException(String message) {
-    super(message, TSStatusCode.PIPE_ERROR.getStatusCode());
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeNotExistException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeNotExistException.java
deleted file mode 100644
index 23a0637a516..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeNotExistException.java
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-public class PipeNotExistException extends PipeException {
-  public PipeNotExistException(String pipeName) {
-    super(String.format("PIPE [%s] does not exist", pipeName));
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeServerException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeServerException.java
deleted file mode 100644
index 45e2271539e..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeServerException.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-import org.apache.iotdb.commons.exception.IoTDBException;
-import org.apache.iotdb.rpc.TSStatusCode;
-
-public class PipeServerException extends IoTDBException {
-
-  public PipeServerException(String message, int errorCode) {
-    super(message, errorCode);
-  }
-
-  public PipeServerException(String message) {
-    this(message, TSStatusCode.PIPESERVER_ERROR.getStatusCode());
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkAlreadyExistException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkAlreadyExistException.java
deleted file mode 100644
index 535a685b561..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkAlreadyExistException.java
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-public class PipeSinkAlreadyExistException extends PipeSinkException {
-  public PipeSinkAlreadyExistException(String pipeSinkName) {
-    super(String.format("PIPESINK [%s] already exists in IoTDB.", 
pipeSinkName));
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkBeingUsedException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkBeingUsedException.java
deleted file mode 100644
index 5ba3a29013b..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkBeingUsedException.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-public class PipeSinkBeingUsedException extends PipeSinkException {
-  public PipeSinkBeingUsedException(String pipeSinkName, String pipeName) {
-    super(
-        String.format(
-            "Can not drop PIPESINK [%s], because PIPE [%s] is using it.", 
pipeSinkName, pipeName));
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkException.java
deleted file mode 100644
index f2711b0f793..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkException.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-import org.apache.iotdb.commons.exception.IoTDBException;
-import org.apache.iotdb.rpc.TSStatusCode;
-
-public class PipeSinkException extends IoTDBException {
-
-  private static final long serialVersionUID = -2355881952697245662L;
-
-  public PipeSinkException(String message, int errorCode) {
-    super(message, errorCode);
-  }
-
-  public PipeSinkException(String message) {
-    super(message, TSStatusCode.CREATE_PIPE_SINK_ERROR.getStatusCode());
-  }
-
-  public PipeSinkException(String attr, String value, String attrType) {
-    super(
-        String.format("%s=%s has wrong format, require for %s.", attr, value, 
attrType),
-        TSStatusCode.CREATE_PIPE_SINK_ERROR.getStatusCode());
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkNotExistException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkNotExistException.java
deleted file mode 100644
index 31c30c3173a..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeSinkNotExistException.java
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-public class PipeSinkNotExistException extends PipeSinkException {
-  public PipeSinkNotExistException(String pipeSinkName) {
-    super(String.format("PIPESINK [%s] does not exist", pipeSinkName));
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/SyncConnectionException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/SyncConnectionException.java
deleted file mode 100644
index 7a88fa1a8ad..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/SyncConnectionException.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-import org.apache.iotdb.commons.exception.IoTDBException;
-import org.apache.iotdb.rpc.TSStatusCode;
-
-public class SyncConnectionException extends IoTDBException {
-
-  private static final long serialVersionUID = -6661904365503849681L;
-
-  public SyncConnectionException(String message) {
-    super(message, TSStatusCode.SYNC_CONNECTION_ERROR.getStatusCode());
-  }
-
-  public SyncConnectionException(String message, Throwable cause) {
-    super(message + cause.getMessage(), 
TSStatusCode.SYNC_CONNECTION_ERROR.getStatusCode());
-  }
-
-  public SyncConnectionException(Throwable cause) {
-    super(cause.getMessage(), 
TSStatusCode.SYNC_CONNECTION_ERROR.getStatusCode());
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/SyncHandshakeException.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/SyncHandshakeException.java
deleted file mode 100644
index 61903d69ad5..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/SyncHandshakeException.java
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * 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.iotdb.commons.exception.sync;
-
-public class SyncHandshakeException extends SyncConnectionException {
-
-  public SyncHandshakeException(String message) {
-    super(message);
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeInfo.java 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeInfo.java
similarity index 79%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeInfo.java
rename to node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeInfo.java
index ca579073546..88282635321 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeInfo.java
+++ b/node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeInfo.java
@@ -16,10 +16,9 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.sync.pipe;
+package org.apache.iotdb.commons.sync;
 
 import 
org.apache.iotdb.commons.exception.runtime.SerializationRunTimeException;
-import org.apache.iotdb.confignode.rpc.thrift.TShowPipeInfo;
 import org.apache.iotdb.tsfile.utils.PublicBAOS;
 import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
 
@@ -32,6 +31,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.nio.ByteBuffer;
 
+@Deprecated
 public abstract class PipeInfo {
   private static final Logger LOGGER = LoggerFactory.getLogger(PipeInfo.class);
 
@@ -70,14 +70,6 @@ public abstract class PipeInfo {
     this.pipeName = pipeName;
   }
 
-  public String getPipeSinkName() {
-    return pipeSinkName;
-  }
-
-  public void setPipeSinkName(String pipeSinkName) {
-    this.pipeSinkName = pipeSinkName;
-  }
-
   public PipeStatus getStatus() {
     return status;
   }
@@ -86,24 +78,6 @@ public abstract class PipeInfo {
     this.status = status;
   }
 
-  public PipeMessage.PipeMessageType getMessageType() {
-    return messageType;
-  }
-
-  public void setMessageType(PipeMessage.PipeMessageType messageType) {
-    this.messageType = messageType;
-  }
-
-  public long getCreateTime() {
-    return createTime;
-  }
-
-  public void setCreateTime(long createTime) {
-    this.createTime = createTime;
-  }
-
-  public abstract TShowPipeInfo getTShowPipeInfo();
-
   public void serialize(OutputStream outputStream) throws IOException {
     ReadWriteIOUtils.write((byte) getType().ordinal(), outputStream);
     ReadWriteIOUtils.write(pipeName, outputStream);
@@ -140,22 +114,6 @@ public abstract class PipeInfo {
     }
   }
 
-  public static PipeInfo deserializePipeInfo(InputStream inputStream) throws 
IOException {
-    PipeType pipeType = 
PipeType.values()[ReadWriteIOUtils.readByte(inputStream)];
-    PipeInfo pipeInfo;
-    switch (pipeType) {
-      case TsFilePipe:
-        pipeInfo = new TsFilePipeInfo();
-        pipeInfo.deserialize(inputStream);
-        break;
-      case WALPipe:
-      default:
-        throw new UnsupportedOperationException(
-            String.format("Can not recognize PipeType %s.", pipeType.name()));
-    }
-    return pipeInfo;
-  }
-
   public static PipeInfo deserializePipeInfo(ByteBuffer byteBuffer) {
     PipeType pipeType = 
PipeType.values()[ReadWriteIOUtils.readByte(byteBuffer)];
     PipeInfo pipeInfo;
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeMessage.java
 b/node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeMessage.java
similarity index 97%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeMessage.java
rename to 
node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeMessage.java
index b0f636fa56e..e386d751adb 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeMessage.java
+++ b/node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeMessage.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.sync.pipe;
+package org.apache.iotdb.commons.sync;
 
 import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
 
@@ -25,6 +25,7 @@ import java.io.DataOutputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
+@Deprecated
 public class PipeMessage {
   private final String message;
   private final PipeMessageType type;
@@ -70,7 +71,7 @@ public class PipeMessage {
     WARN((byte) 2),
     ERROR((byte) 3);
 
-    private byte type;
+    private final byte type;
 
     PipeMessageType(byte type) {
       this.type = type;
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeStatus.java 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeStatus.java
similarity index 97%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeStatus.java
rename to 
node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeStatus.java
index 64253b21d96..a10c571afb1 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/PipeStatus.java
+++ b/node-commons/src/main/java/org/apache/iotdb/commons/sync/PipeStatus.java
@@ -16,8 +16,9 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.sync.pipe;
+package org.apache.iotdb.commons.sync;
 
+@Deprecated
 public enum PipeStatus {
 
   // a new pipe should be stop status
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/TsFilePipeInfo.java
 b/node-commons/src/main/java/org/apache/iotdb/commons/sync/TsFilePipeInfo.java
similarity index 79%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/TsFilePipeInfo.java
rename to 
node-commons/src/main/java/org/apache/iotdb/commons/sync/TsFilePipeInfo.java
index a45c7579fc1..5a3c764e8e5 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/TsFilePipeInfo.java
+++ 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/TsFilePipeInfo.java
@@ -16,9 +16,8 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.sync.pipe;
+package org.apache.iotdb.commons.sync;
 
-import org.apache.iotdb.confignode.rpc.thrift.TShowPipeInfo;
 import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
 
 import java.io.IOException;
@@ -27,6 +26,7 @@ import java.io.OutputStream;
 import java.nio.ByteBuffer;
 import java.util.Objects;
 
+@Deprecated
 public class TsFilePipeInfo extends PipeInfo {
   private boolean syncDelOp;
   private long dataStartTimestamp;
@@ -34,17 +34,6 @@ public class TsFilePipeInfo extends PipeInfo {
   // only used for serialization
   public TsFilePipeInfo() {}
 
-  public TsFilePipeInfo(
-      String pipeName,
-      String pipeSinkName,
-      long createTime,
-      long dataStartTimestamp,
-      boolean syncDelOp) {
-    super(pipeName, pipeSinkName, createTime);
-    this.dataStartTimestamp = dataStartTimestamp;
-    this.syncDelOp = syncDelOp;
-  }
-
   public TsFilePipeInfo(
       String pipeName,
       String pipeSinkName,
@@ -57,32 +46,11 @@ public class TsFilePipeInfo extends PipeInfo {
     this.syncDelOp = syncDelOp;
   }
 
-  public boolean isSyncDelOp() {
-    return syncDelOp;
-  }
-
-  public void setSyncDelOp(boolean syncDelOp) {
-    this.syncDelOp = syncDelOp;
-  }
-
-  public long getDataStartTimestamp() {
-    return dataStartTimestamp;
-  }
-
-  public void setDataStartTimestamp(long dataStartTimestamp) {
-    this.dataStartTimestamp = dataStartTimestamp;
-  }
-
   @Override
   PipeType getType() {
     return PipeType.TsFilePipe;
   }
 
-  @Override
-  public TShowPipeInfo getTShowPipeInfo() {
-    return new TShowPipeInfo();
-  }
-
   @Override
   public void serialize(OutputStream outputStream) throws IOException {
     super.serialize(outputStream);
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/metadata/SyncMetadata.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/metadata/SyncMetadata.java
deleted file mode 100644
index e9d9e0f9c8a..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/metadata/SyncMetadata.java
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * 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.iotdb.commons.sync.metadata;
-
-import org.apache.iotdb.commons.exception.sync.PipeAlreadyExistException;
-import org.apache.iotdb.commons.exception.sync.PipeException;
-import org.apache.iotdb.commons.exception.sync.PipeNotExistException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkAlreadyExistException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkBeingUsedException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkNotExistException;
-import org.apache.iotdb.commons.snapshot.SnapshotProcessor;
-import org.apache.iotdb.commons.sync.persistence.SyncLogReader;
-import org.apache.iotdb.commons.sync.persistence.SyncLogWriter;
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
-import org.apache.iotdb.commons.sync.pipe.PipeMessage;
-import org.apache.iotdb.commons.sync.pipe.PipeStatus;
-import org.apache.iotdb.commons.sync.pipe.SyncOperation;
-import org.apache.iotdb.commons.sync.pipesink.PipeSink;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
-
-import org.apache.thrift.TException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentHashMap;
-
-public class SyncMetadata implements SnapshotProcessor {
-
-  private static final Logger LOGGER = 
LoggerFactory.getLogger(SyncMetadata.class);
-
-  // <PipeSinkName, PipeSink>
-  private Map<String, PipeSink> pipeSinks;
-
-  // <PipeName, PipeInfo>
-  private Map<String, PipeInfo> pipes;
-
-  public SyncMetadata() {
-    this.pipes = new ConcurrentHashMap<>();
-    this.pipeSinks = new ConcurrentHashMap<>();
-  }
-
-  // ======================================================
-  // region Implement of Getter and Setter
-  // ======================================================
-
-  public Map<String, PipeSink> getPipeSinks() {
-    return pipeSinks;
-  }
-
-  public void setPipeSinks(Map<String, PipeSink> pipeSinks) {
-    this.pipeSinks = pipeSinks;
-  }
-
-  public Map<String, PipeInfo> getPipes() {
-    return pipes;
-  }
-
-  public void setPipes(Map<String, PipeInfo> pipes) {
-    this.pipes = pipes;
-  }
-
-  // endregion
-
-  // ======================================================
-  // region Implement of PipeSink
-  // ======================================================
-
-  public boolean isPipeSinkExist(String name) {
-    return pipeSinks.containsKey(name);
-  }
-
-  public void checkPipeSinkNoExist(String pipeSinkName) throws 
PipeSinkException {
-    if (isPipeSinkExist(pipeSinkName)) {
-      throw new PipeSinkAlreadyExistException(pipeSinkName);
-    }
-  }
-
-  public void addPipeSink(PipeSink pipeSink) {
-    pipeSinks.put(pipeSink.getPipeSinkName(), pipeSink);
-  }
-
-  public void checkDropPipeSink(String pipeSinkName) throws PipeSinkException {
-    if (!isPipeSinkExist(pipeSinkName)) {
-      throw new PipeSinkNotExistException(pipeSinkName);
-    }
-    for (PipeInfo pipeInfo : pipes.values()) {
-      if (pipeInfo.getPipeSinkName().equals(pipeSinkName)) {
-        throw new PipeSinkBeingUsedException(pipeSinkName, 
pipeInfo.getPipeName());
-      }
-    }
-  }
-
-  public void dropPipeSink(String name) {
-    pipeSinks.remove(name);
-  }
-
-  public PipeSink getPipeSink(String name) {
-    return pipeSinks.getOrDefault(name, null);
-  }
-
-  public List<PipeSink> getAllPipeSink() {
-    List<PipeSink> allPipeSinks = new ArrayList<>();
-    for (Map.Entry<String, PipeSink> entry : pipeSinks.entrySet()) {
-      allPipeSinks.add(entry.getValue());
-    }
-    return allPipeSinks;
-  }
-
-  // endregion
-
-  // ======================================================
-  // region Implement of Pipe
-  // ======================================================
-
-  public void checkAddPipe(PipeInfo pipeInfo) throws PipeException, 
PipeSinkNotExistException {
-    // check PipeSink exists
-    if (!isPipeSinkExist(pipeInfo.getPipeSinkName())) {
-      throw new PipeSinkNotExistException(pipeInfo.getPipeSinkName());
-    }
-    // check Pipe does not exist
-    if (pipes.containsKey(pipeInfo.getPipeName())) {
-      PipeInfo runningPipe = pipes.get(pipeInfo.getPipeName());
-      throw new PipeAlreadyExistException(runningPipe.getPipeName(), 
runningPipe.getStatus());
-    }
-  }
-
-  public void addPipe(PipeInfo pipeInfo) {
-    pipes.putIfAbsent(pipeInfo.getPipeName(), pipeInfo);
-  }
-
-  public void dropPipe(String pipeName) {
-    pipes.remove(pipeName);
-  }
-
-  public void setPipeStatus(String pipeName, PipeStatus status) {
-    pipes.get(pipeName).setStatus(status);
-    if (status.equals(PipeStatus.RUNNING)) {
-      pipes.get(pipeName).setMessageType(PipeMessage.PipeMessageType.NORMAL);
-    }
-  }
-
-  public PipeInfo getPipeInfo(String pipeName) {
-    return pipes.get(pipeName);
-  }
-
-  public List<PipeInfo> getAllPipeInfos() {
-    return new ArrayList<>(pipes.values());
-  }
-
-  public void checkIfPipeExist(String pipeName) throws PipeException {
-    if (!pipes.containsKey(pipeName)) {
-      throw new PipeNotExistException(pipeName);
-    }
-  }
-
-  /**
-   * Change Pipe Message. It will record the most important message about one 
pipe. ERROR > WARN >
-   * NORMAL.
-   *
-   * @param pipeName name of pipe
-   * @param messageType pipe message type
-   */
-  public void changePipeMessage(String pipeName, PipeMessage.PipeMessageType 
messageType) {
-    if (messageType.compareTo(pipes.get(pipeName).getMessageType()) > 0) {
-      pipes.get(pipeName).setMessageType(messageType);
-    }
-  }
-
-  @Override
-  public boolean processTakeSnapshot(File snapshotDir) throws TException, 
IOException {
-    File snapshotFile = new File(snapshotDir, SyncConstant.SYNC_LOG_NAME);
-    if (snapshotFile.exists() && snapshotFile.isFile()) {
-      LOGGER.error(
-          "Failed to take snapshot, because snapshot file [{}] is already 
exist.",
-          snapshotFile.getAbsolutePath());
-      return false;
-    }
-    File tmpFile = new File(snapshotFile.getAbsolutePath() + "-" + 
UUID.randomUUID());
-    try (SyncLogWriter writer = new SyncLogWriter(snapshotDir, 
tmpFile.getName())) {
-      writer.initOutputStream();
-      for (PipeSink pipeSink : pipeSinks.values()) {
-        writer.addPipeSink(pipeSink);
-      }
-      for (PipeInfo pipeInfo : pipes.values()) {
-        writer.addPipe(pipeInfo);
-        switch (pipeInfo.getStatus()) {
-          case RUNNING:
-            writer.operatePipe(pipeInfo.getPipeName(), 
SyncOperation.START_PIPE);
-            break;
-          case STOP:
-            writer.operatePipe(pipeInfo.getPipeName(), 
SyncOperation.STOP_PIPE);
-            break;
-          default:
-            break;
-        }
-      }
-    }
-    return tmpFile.renameTo(snapshotFile);
-  }
-
-  @Override
-  public void processLoadSnapshot(File snapshotDir) throws TException, 
IOException {
-    File snapshotFile = new File(snapshotDir, SyncConstant.SYNC_LOG_NAME);
-    if (!snapshotFile.exists() || !snapshotFile.isFile()) {
-      LOGGER.error(
-          "Failed to load snapshot,snapshot file [{}] is not exist.",
-          snapshotFile.getAbsolutePath());
-      return;
-    }
-    SyncLogReader reader = new SyncLogReader(snapshotDir, 
snapshotFile.getName());
-    reader.recover();
-    setPipes(reader.getPipes());
-    setPipeSinks(reader.getAllPipeSinks());
-  }
-
-  // endregion
-
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/persistence/SyncLogReader.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/persistence/SyncLogReader.java
deleted file mode 100644
index 3ddd1f82f52..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/persistence/SyncLogReader.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * 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.iotdb.commons.sync.persistence;
-
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
-import org.apache.iotdb.commons.sync.pipe.PipeStatus;
-import org.apache.iotdb.commons.sync.pipe.SyncOperation;
-import org.apache.iotdb.commons.sync.pipesink.PipeSink;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
-import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-public class SyncLogReader {
-  private static final Logger logger = 
LoggerFactory.getLogger(SyncLogReader.class);
-  // <pipeSinkName, PipeSink>
-  private final Map<String, PipeSink> pipeSinks = new ConcurrentHashMap<>();
-  // <pipeName, Pipe>
-  private final Map<String, PipeInfo> pipes = new ConcurrentHashMap<>();
-  private final File dir;
-  private final String fileName;
-
-  public SyncLogReader(File dir) {
-    this.dir = dir;
-    this.fileName = SyncConstant.SYNC_LOG_NAME;
-  }
-
-  public SyncLogReader(File dir, String fileName) {
-    this.dir = dir;
-    this.fileName = fileName;
-  }
-
-  public void recover() throws IOException {
-    logger.info("Start to recover all sync state for sync.");
-    File serviceLogFile = new File(dir, fileName);
-    if (!serviceLogFile.exists()) {
-      logger.warn("Sync service log file not found");
-    } else {
-      try (InputStream inputStream = new FileInputStream(serviceLogFile)) {
-        recoverPipe(inputStream);
-      }
-    }
-  }
-
-  public Map<String, PipeSink> getAllPipeSinks() {
-    return pipeSinks;
-  }
-
-  public Map<String, PipeInfo> getPipes() {
-    return pipes;
-  }
-
-  private void recoverPipe(InputStream inputStream) throws IOException {
-    byte nextByte;
-    while ((nextByte = ReadWriteIOUtils.readByte(inputStream)) != -1) {
-      SyncOperation operationType = SyncOperation.values()[nextByte];
-      switch (operationType) {
-        case CREATE_PIPESINK:
-          PipeSink pipeSink = PipeSink.deserializePipeSink(inputStream);
-          pipeSinks.put(pipeSink.getPipeSinkName(), pipeSink);
-          break;
-        case DROP_PIPESINK:
-          pipeSinks.remove(ReadWriteIOUtils.readString(inputStream));
-          break;
-        case CREATE_PIPE:
-          PipeInfo pipeInfo = PipeInfo.deserializePipeInfo(inputStream);
-          pipes.putIfAbsent(pipeInfo.getPipeName(), pipeInfo);
-          break;
-        case STOP_PIPE:
-          String pipeName = ReadWriteIOUtils.readString(inputStream);
-          pipes.get(pipeName).setStatus(PipeStatus.STOP);
-          break;
-        case START_PIPE:
-          pipeName = ReadWriteIOUtils.readString(inputStream);
-          pipes.get(pipeName).setStatus(PipeStatus.RUNNING);
-          break;
-        case DROP_PIPE:
-          pipeName = ReadWriteIOUtils.readString(inputStream);
-          pipes.remove(pipeName);
-          break;
-        default:
-          throw new UnsupportedOperationException(
-              String.format("Can not recognize SyncOperation %s.", 
operationType.name()));
-      }
-    }
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/persistence/SyncLogWriter.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/persistence/SyncLogWriter.java
deleted file mode 100644
index dc02f69f294..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/persistence/SyncLogWriter.java
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * 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.iotdb.commons.sync.persistence;
-
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
-import org.apache.iotdb.commons.sync.pipe.SyncOperation;
-import org.apache.iotdb.commons.sync.pipesink.PipeSink;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
-import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-
-/**
- * SyncLogger is used to manage the persistent information in the sync module. 
Persistent
- * information can be recovered on reboot via {@linkplain SyncLogReader}.
- */
-public class SyncLogWriter implements AutoCloseable {
-  // record pipe meta info
-  private OutputStream outputStream;
-  private final File dir;
-  private final String fileName;
-
-  public SyncLogWriter(File dir) {
-    this.dir = dir;
-    this.fileName = SyncConstant.SYNC_LOG_NAME;
-  }
-
-  public SyncLogWriter(File dir, String fileName) {
-    this.dir = dir;
-    this.fileName = fileName;
-  }
-
-  public void initOutputStream() throws IOException {
-    if (outputStream == null) {
-      File logFile = new File(dir, fileName);
-      if (!logFile.getParentFile().exists()) {
-        logFile.getParentFile().mkdirs();
-      }
-      outputStream = new FileOutputStream(logFile, true);
-    }
-  }
-
-  public synchronized void addPipeSink(PipeSink pipeSink) throws IOException {
-    initOutputStream();
-    ReadWriteIOUtils.write((byte) SyncOperation.CREATE_PIPESINK.ordinal(), 
outputStream);
-    pipeSink.serialize(outputStream);
-  }
-
-  public synchronized void dropPipeSink(String pipeSinkName) throws 
IOException {
-    initOutputStream();
-    ReadWriteIOUtils.write((byte) SyncOperation.DROP_PIPESINK.ordinal(), 
outputStream);
-    ReadWriteIOUtils.write(pipeSinkName, outputStream);
-  }
-
-  public synchronized void addPipe(PipeInfo pipeInfo) throws IOException {
-    initOutputStream();
-    ReadWriteIOUtils.write((byte) SyncOperation.CREATE_PIPE.ordinal(), 
outputStream);
-    pipeInfo.serialize(outputStream);
-  }
-
-  public synchronized void operatePipe(String pipeName, SyncOperation 
syncOperation)
-      throws IOException {
-    initOutputStream();
-    ReadWriteIOUtils.write((byte) syncOperation.ordinal(), outputStream);
-    ReadWriteIOUtils.write(pipeName, outputStream);
-  }
-
-  @Override
-  public void close() throws IOException {
-    if (outputStream != null) {
-      outputStream.close();
-      outputStream = null;
-    }
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/SyncOperation.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/SyncOperation.java
deleted file mode 100644
index 5b5fcf5e9a0..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipe/SyncOperation.java
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * 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.iotdb.commons.sync.pipe;
-
-public enum SyncOperation {
-  CREATE_PIPESINK,
-  DROP_PIPESINK,
-  // PIPE
-  CREATE_PIPE,
-  START_PIPE,
-  STOP_PIPE,
-  DROP_PIPE
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipesink/IoTDBPipeSink.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipesink/IoTDBPipeSink.java
deleted file mode 100644
index 1396a88ac88..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipesink/IoTDBPipeSink.java
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * 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.iotdb.commons.sync.pipesink;
-
-import org.apache.iotdb.commons.exception.sync.PipeSinkException;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
-import org.apache.iotdb.confignode.rpc.thrift.TPipeSinkInfo;
-import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
-import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.ByteBuffer;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Objects;
-import java.util.regex.Pattern;
-
-public class IoTDBPipeSink implements PipeSink {
-  private static final PipeSinkType pipeSinkType = PipeSinkType.IoTDB;
-
-  private String name;
-  private String ip;
-  private int port;
-
-  private static final String ATTRIBUTE_IP_KEY = "ip";
-  private static final String ATTRIBUTE_PORT_KEY = "port";
-
-  public IoTDBPipeSink() {}
-
-  public IoTDBPipeSink(String name) {
-    this();
-    this.ip = SyncConstant.DEFAULT_PIPE_SINK_IP;
-    this.port = SyncConstant.DEFAULT_PIPE_SINK_PORT;
-    this.name = name;
-  }
-
-  @Override
-  public void setAttribute(Map<String, String> params) throws 
PipeSinkException {
-    for (Map.Entry<String, String> entry : params.entrySet()) {
-      String attr = entry.getKey();
-      String value = entry.getValue();
-
-      attr = attr.toLowerCase();
-      if (attr.equals(ATTRIBUTE_IP_KEY)) {
-        if (!Pattern.matches(SyncConstant.IPV4_PATTERN, value)) {
-          throw new PipeSinkException(
-              String.format("%s is nonstandard IP address, only support IPv4 
now.", value));
-        }
-        ip = value;
-      } else if (attr.equals(ATTRIBUTE_PORT_KEY)) {
-        try {
-          port = Integer.parseInt(value);
-        } catch (NumberFormatException e) {
-          throw new PipeSinkException(attr, value, TSDataType.INT32.name());
-        }
-      } else {
-        throw new PipeSinkException(
-            "There is No attribute " + attr + " in " + PipeSinkType.IoTDB + " 
pipeSink.");
-      }
-    }
-  }
-
-  public String getIp() {
-    return ip;
-  }
-
-  public int getPort() {
-    return port;
-  }
-
-  @Override
-  public String getPipeSinkName() {
-    return name;
-  }
-
-  @Override
-  public PipeSinkType getType() {
-    return pipeSinkType;
-  }
-
-  @Override
-  public String showAllAttributes() {
-    return String.format("%s='%s',%s=%d", ATTRIBUTE_IP_KEY, ip, 
ATTRIBUTE_PORT_KEY, port);
-  }
-
-  @Override
-  public TPipeSinkInfo getTPipeSinkInfo() {
-    Map<String, String> attributes = new HashMap<>();
-    attributes.put(ATTRIBUTE_IP_KEY, ip);
-    attributes.put(ATTRIBUTE_PORT_KEY, String.valueOf(port));
-    return new TPipeSinkInfo(this.name, 
this.pipeSinkType.name()).setAttributes(attributes);
-  }
-
-  @Override
-  public void serialize(OutputStream outputStream) throws IOException {
-    ReadWriteIOUtils.write((byte) pipeSinkType.ordinal(), outputStream);
-    ReadWriteIOUtils.write(name, outputStream);
-    ReadWriteIOUtils.write(ip, outputStream);
-    ReadWriteIOUtils.write(port, outputStream);
-  }
-
-  @Override
-  public void deserialize(InputStream inputStream) throws IOException {
-    name = ReadWriteIOUtils.readString(inputStream);
-    ip = ReadWriteIOUtils.readString(inputStream);
-    port = ReadWriteIOUtils.readInt(inputStream);
-  }
-
-  @Override
-  public void deserialize(ByteBuffer buffer) {
-    name = ReadWriteIOUtils.readString(buffer);
-    ip = ReadWriteIOUtils.readString(buffer);
-    port = ReadWriteIOUtils.readInt(buffer);
-  }
-
-  @Override
-  public String toString() {
-    return "IoTDBPipeSink{"
-        + "pipeSinkType="
-        + pipeSinkType
-        + ", name='"
-        + name
-        + '\''
-        + ", ip='"
-        + ip
-        + '\''
-        + ", port="
-        + port
-        + '}';
-  }
-
-  @Override
-  public boolean equals(Object o) {
-    if (this == o) return true;
-    if (o == null || getClass() != o.getClass()) return false;
-    IoTDBPipeSink pipeSink = (IoTDBPipeSink) o;
-    return port == pipeSink.port
-        && pipeSinkType == pipeSink.pipeSinkType
-        && Objects.equals(name, pipeSink.name)
-        && Objects.equals(ip, pipeSink.ip);
-  }
-
-  @Override
-  public int hashCode() {
-    return Objects.hash(pipeSinkType, name, ip, port);
-  }
-}
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipesink/PipeSink.java
 
b/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipesink/PipeSink.java
deleted file mode 100644
index ad54ad7eb23..00000000000
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/pipesink/PipeSink.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * 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.iotdb.commons.sync.pipesink;
-
-import org.apache.iotdb.commons.exception.sync.PipeSinkException;
-import org.apache.iotdb.confignode.rpc.thrift.TPipeSinkInfo;
-import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.ByteBuffer;
-import java.util.Map;
-
-public interface PipeSink {
-
-  void setAttribute(Map<String, String> params) throws PipeSinkException;
-
-  String getPipeSinkName();
-
-  PipeSinkType getType();
-
-  String showAllAttributes();
-
-  TPipeSinkInfo getTPipeSinkInfo();
-
-  void serialize(OutputStream outputStream) throws IOException;
-
-  void deserialize(InputStream inputStream) throws IOException;
-
-  void deserialize(ByteBuffer buffer);
-
-  static PipeSink deserializePipeSink(InputStream inputStream) throws 
IOException {
-    PipeSinkType pipeSinkType = 
PipeSinkType.values()[ReadWriteIOUtils.readByte(inputStream)];
-    PipeSink pipeSink;
-    switch (pipeSinkType) {
-      case IoTDB:
-        pipeSink = new IoTDBPipeSink();
-        pipeSink.deserialize(inputStream);
-        break;
-      case ExternalPipe:
-        // TODO(ext-pipe): deserialize external pipesink here
-      default:
-        throw new UnsupportedOperationException(
-            String.format("Can not recognize PipeSinkType %s.", 
pipeSinkType.name()));
-    }
-    return pipeSink;
-  }
-
-  static PipeSink deserializePipeSink(ByteBuffer buffer) {
-    PipeSinkType pipeSinkType = 
PipeSinkType.values()[ReadWriteIOUtils.readByte(buffer)];
-    PipeSink pipeSink;
-    switch (pipeSinkType) {
-      case IoTDB:
-        pipeSink = new IoTDBPipeSink();
-        pipeSink.deserialize(buffer);
-        break;
-      case ExternalPipe:
-        // TODO(ext-pipe): deserialize external pipesink here
-      default:
-        throw new UnsupportedOperationException(
-            String.format("Can not recognize PipeSinkType %s.", 
pipeSinkType.name()));
-    }
-    return pipeSink;
-  }
-
-  enum PipeSinkType {
-    IoTDB,
-    ExternalPipe
-  }
-}
diff --git 
a/node-commons/src/test/java/org/apache/iotdb/commons/sync/metedata/SyncMetadataTest.java
 
b/node-commons/src/test/java/org/apache/iotdb/commons/sync/metedata/SyncMetadataTest.java
deleted file mode 100644
index b634534bcfa..00000000000
--- 
a/node-commons/src/test/java/org/apache/iotdb/commons/sync/metedata/SyncMetadataTest.java
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * 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.iotdb.commons.sync.metedata;
-
-import org.apache.iotdb.commons.exception.sync.PipeAlreadyExistException;
-import org.apache.iotdb.commons.exception.sync.PipeException;
-import org.apache.iotdb.commons.exception.sync.PipeNotExistException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkAlreadyExistException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkBeingUsedException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkException;
-import org.apache.iotdb.commons.exception.sync.PipeSinkNotExistException;
-import org.apache.iotdb.commons.sync.metadata.SyncMetadata;
-import org.apache.iotdb.commons.sync.pipe.PipeInfo;
-import org.apache.iotdb.commons.sync.pipe.PipeMessage;
-import org.apache.iotdb.commons.sync.pipe.PipeStatus;
-import org.apache.iotdb.commons.sync.pipe.TsFilePipeInfo;
-import org.apache.iotdb.commons.sync.pipesink.IoTDBPipeSink;
-import org.apache.iotdb.commons.sync.pipesink.PipeSink;
-
-import org.apache.commons.io.FileUtils;
-import org.junit.Assert;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import java.io.File;
-
-public class SyncMetadataTest {
-  private static final File snapshotDir = new File("target", "snapshot");
-
-  private static final String PIPESINK_NAME_1 = "pipeSink1";
-  private static final String PIPESINK_NAME_2 = "pipeSink2";
-  private static PipeSink ioTDBPipeSink1;
-  private static PipeSink ioTDBPipeSink2;
-
-  private static final String PIPE_NAME_1 = "pipe1";
-  private static final String PIPE_NAME_2 = "pipe2";
-  private static PipeInfo pipeInfo1;
-  private static PipeInfo pipeInfo2;
-
-  @BeforeClass
-  public static void setUp() {
-    ioTDBPipeSink1 = new IoTDBPipeSink(PIPESINK_NAME_1);
-    ioTDBPipeSink2 = new IoTDBPipeSink(PIPESINK_NAME_2);
-    pipeInfo1 =
-        new TsFilePipeInfo(PIPE_NAME_1, PIPESINK_NAME_1, 
System.currentTimeMillis(), 0, true);
-    pipeInfo2 =
-        new TsFilePipeInfo(PIPE_NAME_2, PIPESINK_NAME_2, 
System.currentTimeMillis(), 99, false);
-  }
-
-  @Test
-  public void testPipeSinkOperation() {
-    SyncMetadata syncMetadata = new SyncMetadata();
-    Assert.assertFalse(syncMetadata.isPipeSinkExist(PIPESINK_NAME_1));
-    // check and add ioTDBPipeSink1
-    try {
-      syncMetadata.checkPipeSinkNoExist(PIPESINK_NAME_1);
-    } catch (PipeSinkException e) {
-      Assert.fail(e.getMessage());
-    }
-    syncMetadata.addPipeSink(ioTDBPipeSink1);
-    Assert.assertTrue(syncMetadata.isPipeSinkExist(PIPESINK_NAME_1));
-    try {
-      syncMetadata.checkPipeSinkNoExist(PIPESINK_NAME_1);
-      Assert.fail();
-    } catch (PipeSinkException e) {
-      Assert.assertTrue(e instanceof PipeSinkAlreadyExistException);
-    }
-    // add ioTDBPipeSink2
-    try {
-      syncMetadata.checkDropPipeSink(PIPESINK_NAME_2);
-      Assert.fail();
-    } catch (PipeSinkException e) {
-      Assert.assertTrue(e instanceof PipeSinkNotExistException);
-    }
-    syncMetadata.addPipeSink(ioTDBPipeSink2);
-    // get PipeSink
-    Assert.assertEquals(ioTDBPipeSink1, 
syncMetadata.getPipeSink(PIPESINK_NAME_1));
-    Assert.assertEquals(ioTDBPipeSink2, 
syncMetadata.getPipeSink(PIPESINK_NAME_2));
-    Assert.assertEquals(2, syncMetadata.getAllPipeSink().size());
-    // drop ioTDBPipeSink2
-    syncMetadata.addPipe(pipeInfo2);
-    try {
-      syncMetadata.checkDropPipeSink(PIPESINK_NAME_2);
-      Assert.fail();
-    } catch (PipeSinkException e) {
-      Assert.assertTrue(e instanceof PipeSinkBeingUsedException);
-    }
-    syncMetadata.dropPipe(PIPE_NAME_2);
-    try {
-      syncMetadata.checkDropPipeSink(PIPESINK_NAME_2);
-    } catch (PipeSinkException e) {
-      Assert.fail(e.getMessage());
-    }
-    syncMetadata.dropPipeSink(PIPESINK_NAME_2);
-    Assert.assertNull(syncMetadata.getPipeSink(PIPESINK_NAME_2));
-    Assert.assertEquals(1, syncMetadata.getAllPipeSink().size());
-  }
-
-  @Test
-  public void testPipeOperation() {
-    SyncMetadata syncMetadata = new SyncMetadata();
-    // check add pipe
-    try {
-      syncMetadata.checkAddPipe(pipeInfo1);
-      Assert.fail();
-    } catch (Exception e) {
-      Assert.assertTrue(e instanceof PipeSinkNotExistException);
-    }
-    try {
-      syncMetadata.checkIfPipeExist(PIPE_NAME_1);
-      Assert.fail();
-    } catch (PipeException e) {
-      Assert.assertTrue(e instanceof PipeNotExistException);
-    }
-    syncMetadata.addPipeSink(ioTDBPipeSink1);
-    syncMetadata.addPipeSink(ioTDBPipeSink2);
-    try {
-      syncMetadata.checkAddPipe(pipeInfo1);
-    } catch (Exception e) {
-      Assert.fail(e.getMessage());
-    }
-    syncMetadata.addPipe(pipeInfo1);
-    try {
-      syncMetadata.checkAddPipe(
-          new TsFilePipeInfo(PIPE_NAME_1, PIPESINK_NAME_2, 
System.currentTimeMillis(), 99, false));
-      Assert.fail();
-    } catch (Exception e) {
-      Assert.assertTrue(e instanceof PipeAlreadyExistException);
-      Assert.assertTrue(e.getMessage().contains("please retry after drop it"));
-    }
-    syncMetadata.addPipe(pipeInfo2);
-    // check get pipe
-    Assert.assertEquals(pipeInfo1, syncMetadata.getPipeInfo(PIPE_NAME_1));
-    Assert.assertEquals(pipeInfo2, syncMetadata.getPipeInfo(PIPE_NAME_2));
-    Assert.assertEquals(2, syncMetadata.getAllPipeInfos().size());
-    // check setter
-    syncMetadata.setPipeStatus(PIPE_NAME_1, PipeStatus.RUNNING);
-    syncMetadata.changePipeMessage(PIPE_NAME_1, 
PipeMessage.PipeMessageType.WARN);
-    Assert.assertEquals(PipeStatus.RUNNING, 
syncMetadata.getPipeInfo(PIPE_NAME_1).getStatus());
-    Assert.assertEquals(
-        PipeMessage.PipeMessageType.WARN, 
syncMetadata.getPipeInfo(PIPE_NAME_1).getMessageType());
-    // check drop
-    syncMetadata.dropPipe(PIPE_NAME_1);
-    Assert.assertNull(syncMetadata.getPipeInfo(PIPE_NAME_1));
-    Assert.assertEquals(1, syncMetadata.getAllPipeInfos().size());
-  }
-
-  @Test
-  public void testSnapshot() throws Exception {
-    try {
-      if (snapshotDir.exists()) {
-        FileUtils.deleteDirectory(snapshotDir);
-      }
-      snapshotDir.mkdirs();
-      SyncMetadata syncMetadata = new SyncMetadata();
-      syncMetadata.addPipeSink(ioTDBPipeSink1);
-      syncMetadata.addPipeSink(ioTDBPipeSink2);
-      syncMetadata.addPipe(pipeInfo1);
-      syncMetadata.addPipe(pipeInfo2);
-      syncMetadata.processTakeSnapshot(snapshotDir);
-      SyncMetadata syncMetadata1 = new SyncMetadata();
-      syncMetadata1.processLoadSnapshot(snapshotDir);
-      Assert.assertEquals(pipeInfo1, syncMetadata.getPipeInfo(PIPE_NAME_1));
-      Assert.assertEquals(pipeInfo2, syncMetadata.getPipeInfo(PIPE_NAME_2));
-      Assert.assertEquals(ioTDBPipeSink1, 
syncMetadata.getPipeSink(PIPESINK_NAME_1));
-      Assert.assertEquals(ioTDBPipeSink2, 
syncMetadata.getPipeSink(PIPESINK_NAME_2));
-    } finally {
-      if (snapshotDir.exists()) {
-        FileUtils.deleteDirectory(snapshotDir);
-      }
-    }
-  }
-}
diff --git 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/IoTDBSyncReceiverV1_1.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/IoTDBSyncReceiverV1_1.java
index d8b6b7fbfb4..97990579caf 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/IoTDBSyncReceiverV1_1.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/IoTDBSyncReceiverV1_1.java
@@ -21,11 +21,7 @@ package org.apache.iotdb.db.pipe.connector.lagacy;
 
 import org.apache.iotdb.common.rpc.thrift.TSStatus;
 import org.apache.iotdb.commons.exception.IllegalPathException;
-import org.apache.iotdb.commons.exception.sync.PipeDataLoadException;
 import org.apache.iotdb.commons.path.PartialPath;
-import org.apache.iotdb.commons.sync.transport.SyncIdentityInfo;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
-import org.apache.iotdb.commons.sync.utils.SyncPathUtil;
 import org.apache.iotdb.db.conf.IoTDBConfig;
 import org.apache.iotdb.db.conf.IoTDBDescriptor;
 import org.apache.iotdb.db.mpp.plan.Coordinator;
@@ -33,8 +29,12 @@ import 
org.apache.iotdb.db.mpp.plan.analyze.IPartitionFetcher;
 import org.apache.iotdb.db.mpp.plan.analyze.schema.ISchemaFetcher;
 import org.apache.iotdb.db.mpp.plan.execution.ExecutionResult;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.DatabaseSchemaStatement;
+import 
org.apache.iotdb.db.pipe.connector.lagacy.exception.SyncDataLoadException;
 import org.apache.iotdb.db.pipe.connector.lagacy.pipedata.PipeData;
 import org.apache.iotdb.db.pipe.connector.lagacy.pipedata.TsFilePipeData;
+import org.apache.iotdb.db.pipe.connector.lagacy.transport.SyncIdentityInfo;
+import org.apache.iotdb.db.pipe.connector.lagacy.utils.SyncConstant;
+import org.apache.iotdb.db.pipe.connector.lagacy.utils.SyncPathUtil;
 import org.apache.iotdb.db.query.control.SessionManager;
 import org.apache.iotdb.rpc.RpcUtils;
 import org.apache.iotdb.rpc.TSStatusCode;
@@ -280,7 +280,7 @@ public class IoTDBSyncReceiverV1_1 {
       pipeData.createLoader().load();
       logger.info(
           "Load pipeData with serialize number {} successfully.", 
pipeData.getSerialNumber());
-    } catch (PipeDataLoadException e) {
+    } catch (SyncDataLoadException e) {
       logger.error("Fail to load pipeData because {}.", e.getMessage());
       return RpcUtils.getStatus(
           TSStatusCode.PIPESERVER_ERROR, "Fail to load pipeData because " + 
e.getMessage());
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeDataLoadException.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/exception/SyncDataLoadException.java
similarity index 78%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeDataLoadException.java
rename to 
server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/exception/SyncDataLoadException.java
index a873325d047..399c1373d92 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/exception/sync/PipeDataLoadException.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/exception/SyncDataLoadException.java
@@ -16,10 +16,13 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.exception.sync;
+package org.apache.iotdb.db.pipe.connector.lagacy.exception;
 
-public class PipeDataLoadException extends PipeServerException {
-  public PipeDataLoadException(String message) {
+import org.apache.iotdb.pipe.api.exception.PipeException;
+
+public class SyncDataLoadException extends PipeException {
+
+  public SyncDataLoadException(String message) {
     super(message);
   }
 }
diff --git 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/TsFilePipeData.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/TsFilePipeData.java
index 393e3c75937..979d9fbfd56 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/TsFilePipeData.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/TsFilePipeData.java
@@ -20,11 +20,11 @@
 package org.apache.iotdb.db.pipe.connector.lagacy.pipedata;
 
 import org.apache.iotdb.commons.exception.IllegalPathException;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
 import org.apache.iotdb.db.engine.modification.ModificationFile;
 import org.apache.iotdb.db.engine.storagegroup.TsFileResource;
 import org.apache.iotdb.db.pipe.connector.lagacy.pipedata.load.ILoader;
 import org.apache.iotdb.db.pipe.connector.lagacy.pipedata.load.TsFileLoader;
+import org.apache.iotdb.db.pipe.connector.lagacy.utils.SyncConstant;
 import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
 
 import org.slf4j.Logger;
diff --git 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/DeletionLoader.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/DeletionLoader.java
index c3459aec42c..0e0c2f7b7a8 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/DeletionLoader.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/DeletionLoader.java
@@ -19,7 +19,6 @@
 package org.apache.iotdb.db.pipe.connector.lagacy.pipedata.load;
 
 import org.apache.iotdb.commons.conf.CommonDescriptor;
-import org.apache.iotdb.commons.exception.sync.PipeDataLoadException;
 import org.apache.iotdb.db.conf.IoTDBDescriptor;
 import org.apache.iotdb.db.engine.modification.Deletion;
 import org.apache.iotdb.db.exception.LoadFileException;
@@ -28,6 +27,7 @@ import org.apache.iotdb.db.mpp.plan.execution.ExecutionResult;
 import org.apache.iotdb.db.mpp.plan.statement.Statement;
 import org.apache.iotdb.db.mpp.plan.statement.crud.DeleteDataStatement;
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.DeleteTimeSeriesStatement;
+import 
org.apache.iotdb.db.pipe.connector.lagacy.exception.SyncDataLoadException;
 import org.apache.iotdb.db.query.control.SessionManager;
 import org.apache.iotdb.rpc.TSStatusCode;
 
@@ -47,9 +47,9 @@ public class DeletionLoader implements ILoader {
   }
 
   @Override
-  public void load() throws PipeDataLoadException {
+  public void load() throws SyncDataLoadException {
     if (CommonDescriptor.getInstance().getConfig().isReadOnly()) {
-      throw new PipeDataLoadException("storage engine readonly");
+      throw new SyncDataLoadException("storage engine readonly");
     }
     try {
       Statement statement = generateStatement();
@@ -71,7 +71,7 @@ public class DeletionLoader implements ILoader {
             String.format("Can not execute delete statement: %s", statement));
       }
     } catch (Exception e) {
-      throw new PipeDataLoadException(e.getMessage());
+      throw new SyncDataLoadException(e.getMessage());
     }
   }
 
diff --git 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/ILoader.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/ILoader.java
index 3016e0a794c..de07aec08fa 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/ILoader.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/ILoader.java
@@ -18,11 +18,11 @@
  */
 package org.apache.iotdb.db.pipe.connector.lagacy.pipedata.load;
 
-import org.apache.iotdb.commons.exception.sync.PipeDataLoadException;
 import org.apache.iotdb.db.mpp.plan.analyze.ClusterPartitionFetcher;
 import org.apache.iotdb.db.mpp.plan.analyze.IPartitionFetcher;
 import org.apache.iotdb.db.mpp.plan.analyze.schema.ClusterSchemaFetcher;
 import org.apache.iotdb.db.mpp.plan.analyze.schema.ISchemaFetcher;
+import 
org.apache.iotdb.db.pipe.connector.lagacy.exception.SyncDataLoadException;
 
 /**
  * This interface is used to load files, including tsFile, syncTask, schema, 
modsFile and
@@ -34,5 +34,5 @@ public interface ILoader {
 
   ISchemaFetcher SCHEMA_FETCHER = ClusterSchemaFetcher.getInstance();
 
-  void load() throws PipeDataLoadException;
+  void load() throws SyncDataLoadException;
 }
diff --git 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/TsFileLoader.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/TsFileLoader.java
index 48b81a116ed..5cfd59e6661 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/TsFileLoader.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/load/TsFileLoader.java
@@ -19,13 +19,13 @@
 package org.apache.iotdb.db.pipe.connector.lagacy.pipedata.load;
 
 import org.apache.iotdb.commons.exception.IllegalPathException;
-import org.apache.iotdb.commons.exception.sync.PipeDataLoadException;
 import org.apache.iotdb.commons.path.PartialPath;
 import org.apache.iotdb.db.conf.IoTDBDescriptor;
 import org.apache.iotdb.db.exception.LoadFileException;
 import org.apache.iotdb.db.mpp.plan.Coordinator;
 import org.apache.iotdb.db.mpp.plan.execution.ExecutionResult;
 import org.apache.iotdb.db.mpp.plan.statement.crud.LoadTsFileStatement;
+import 
org.apache.iotdb.db.pipe.connector.lagacy.exception.SyncDataLoadException;
 import org.apache.iotdb.db.query.control.SessionManager;
 import org.apache.iotdb.rpc.TSStatusCode;
 
@@ -47,7 +47,7 @@ public class TsFileLoader implements ILoader {
   }
 
   @Override
-  public void load() throws PipeDataLoadException {
+  public void load() throws SyncDataLoadException {
     try {
 
       LoadTsFileStatement statement = new 
LoadTsFileStatement(tsFile.getAbsolutePath());
@@ -74,7 +74,7 @@ public class TsFileLoader implements ILoader {
             String.format("Can not execute load TsFile statement: %s", 
statement));
       }
     } catch (Exception e) {
-      throw new PipeDataLoadException(e.getMessage());
+      throw new SyncDataLoadException(e.getMessage());
     }
   }
 
diff --git 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/queue/BufferedPipeDataQueue.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/queue/BufferedPipeDataQueue.java
index 2ffe440602e..d6c28f4c4da 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/queue/BufferedPipeDataQueue.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/pipedata/queue/BufferedPipeDataQueue.java
@@ -19,11 +19,11 @@
 package org.apache.iotdb.db.pipe.connector.lagacy.pipedata.queue;
 
 import org.apache.iotdb.commons.exception.IllegalPathException;
-import org.apache.iotdb.commons.sync.utils.SyncConstant;
-import org.apache.iotdb.commons.sync.utils.SyncPathUtil;
 import org.apache.iotdb.commons.utils.FileUtils;
 import org.apache.iotdb.db.pipe.connector.lagacy.pipedata.PipeData;
 import org.apache.iotdb.db.pipe.connector.lagacy.pipedata.TsFilePipeData;
+import org.apache.iotdb.db.pipe.connector.lagacy.utils.SyncConstant;
+import org.apache.iotdb.db.pipe.connector.lagacy.utils.SyncPathUtil;
 import org.apache.iotdb.tsfile.exception.NotImplementedException;
 
 import org.slf4j.Logger;
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/transport/SyncIdentityInfo.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/transport/SyncIdentityInfo.java
similarity index 96%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/transport/SyncIdentityInfo.java
rename to 
server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/transport/SyncIdentityInfo.java
index 139a715fa9b..7691cfaa6ca 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/transport/SyncIdentityInfo.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/transport/SyncIdentityInfo.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.sync.transport;
+package org.apache.iotdb.db.pipe.connector.lagacy.transport;
 
 import org.apache.iotdb.service.rpc.thrift.TSyncIdentityInfo;
 
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/utils/SyncConstant.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/utils/SyncConstant.java
similarity index 65%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/utils/SyncConstant.java
rename to 
server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/utils/SyncConstant.java
index 427a2113972..10489a329b1 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/utils/SyncConstant.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/utils/SyncConstant.java
@@ -16,18 +16,13 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.iotdb.commons.sync.utils;
-
-import org.apache.iotdb.rpc.RpcUtils;
+package org.apache.iotdb.db.pipe.connector.lagacy.utils;
 
 public class SyncConstant {
   /** common */
-  public static final String UNKNOWN_IP = "UNKNOWN IP";
-
   public static final String SYNC_SYS_DIR = "sys";
+
   public static final String FILE_DATA_DIR_NAME = "file-data";
-  public static final String ROLE_SENDER = "sender";
-  public static final String ROLE_RECEIVER = "receiver";
 
   // pipe log: serialNumber + SEPARATOR + SUFFIX
   public static final String PIPE_LOG_DIR_NAME = "pipe-log";
@@ -46,42 +41,22 @@ public class SyncConstant {
   public static final String SENDER_DIR_NAME = "sender";
 
   public static final String HISTORY_PIPE_LOG_DIR_NAME = "history-" + 
PIPE_LOG_DIR_NAME;
-  public static final String FINISH_COLLECT_LOCK_NAME = "finishCollect.lock";
-  public static final String MODS_OFFSET_FILE_SUFFIX = ".offset";
-
-  // recover
-  public static final String PLAN_SERIALIZE_SPLIT_CHARACTER = ",";
-  public static final String SENDER_LOG_SPLIT_CHARACTER = "#";
 
   // data config
   public static final String DEFAULT_PIPE_SINK_IP = "127.0.0.1";
   public static final int DEFAULT_PIPE_SINK_PORT = 6667;
 
-  public static final int CONNECT_TIMEOUT_MILLISECONDS = 1_000;
-  public static final int SOCKET_TIMEOUT_MILLISECONDS = 100_000;
-
   public static final Long DEFAULT_WAITING_FOR_TSFILE_CLOSE_MILLISECONDS = 
500L;
   public static final Long DEFAULT_WAITING_FOR_TSFILE_RETRY_NUMBER = 10L;
-  public static final Long DEFAULT_WAITING_FOR_STOP_MILLISECONDS = 1000L;
 
   /** transport */
-
-  // Split data file, block size at each transmission */
-  public static final int DATA_CHUNK_SIZE =
-      Math.min(16 * 1024 * 1024, RpcUtils.THRIFT_FRAME_MAX_SIZE);
-
   public static final String PATCH_SUFFIX = ".patch";
+
   public static final String IPV4_PATTERN =
       
"^([1-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}$";
-  public static final int HEARTBEAT_INTERVAL_MILLISECONDS = 5_000;
-  public static final int LOST_CONNECT_REPORT_MILLISECONDS = 30_000;
 
   /** receiver */
   public static final String RECEIVER_DIR_NAME = "receiver";
 
   public static final String IP_SEPARATOR = "\\.";
-
-  // TODO: serialize AbstractReceiverInfo
-  public static final byte PIPE_NAME_MAP_TYPE = 0;
-  public static final byte PIPE_MESSAGE_TYPE = 2;
 }
diff --git 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/utils/SyncPathUtil.java
 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/utils/SyncPathUtil.java
similarity index 56%
rename from 
node-commons/src/main/java/org/apache/iotdb/commons/sync/utils/SyncPathUtil.java
rename to 
server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/utils/SyncPathUtil.java
index 157110d498c..ae82ddf1d22 100644
--- 
a/node-commons/src/main/java/org/apache/iotdb/commons/sync/utils/SyncPathUtil.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/pipe/connector/lagacy/utils/SyncPathUtil.java
@@ -17,10 +17,10 @@
  * under the License.
  */
 
-package org.apache.iotdb.commons.sync.utils;
+package org.apache.iotdb.db.pipe.connector.lagacy.utils;
 
 import org.apache.iotdb.commons.conf.CommonDescriptor;
-import org.apache.iotdb.commons.sync.transport.SyncIdentityInfo;
+import org.apache.iotdb.db.pipe.connector.lagacy.transport.SyncIdentityInfo;
 
 import java.io.File;
 import java.io.IOException;
@@ -45,55 +45,6 @@ public class SyncPathUtil {
   // |              |----file data dir
   // |----sys dir
 
-  /** sender */
-  public static String getSenderDir() {
-    return CommonDescriptor.getInstance().getConfig().getSyncDir()
-        + File.separator
-        + SyncConstant.SENDER_DIR_NAME;
-  }
-
-  public static String getSenderPipeDir(String pipeName, long createTime) {
-    return getSenderDir() + File.separator + getSenderPipeDirName(pipeName, 
createTime);
-  }
-
-  public static String getSenderPipeDirName(String pipeName, long createTime) {
-    return String.format("%s-%d", pipeName, createTime);
-  }
-
-  public static String getSenderDataRegionHistoryPipeLogDir(
-      String pipeName, long createTime, String dataRegionId) {
-    return getSenderPipeDir(pipeName, createTime)
-        + File.separator
-        + SyncConstant.HISTORY_PIPE_LOG_DIR_NAME
-        + File.separator
-        + dataRegionId;
-  }
-
-  public static String getSenderDataRegionRealTimePipeLogDir(
-      String pipeName, long createTime, String dataRegionId) {
-    return getSenderPipeDir(pipeName, createTime)
-        + File.separator
-        + SyncConstant.PIPE_LOG_DIR_NAME
-        + File.separator
-        + dataRegionId;
-  }
-
-  public static String getSenderHistoryPipeLogDir(String pipeName, long 
createTime) {
-    return getSenderPipeDir(pipeName, createTime)
-        + File.separator
-        + SyncConstant.HISTORY_PIPE_LOG_DIR_NAME;
-  }
-
-  public static String getSenderRealTimePipeLogDir(String pipeName, long 
createTime) {
-    return getSenderPipeDir(pipeName, createTime) + File.separator + 
SyncConstant.PIPE_LOG_DIR_NAME;
-  }
-
-  public static String getSenderFileDataDir(String pipeName, long createTime) {
-    return getSenderPipeDir(pipeName, createTime)
-        + File.separator
-        + SyncConstant.FILE_DATA_DIR_NAME;
-  }
-
   /** receiver */
   public static String getReceiverDir() {
     return CommonDescriptor.getInstance().getConfig().getSyncDir()
@@ -111,12 +62,6 @@ public class SyncPathUtil {
     return String.format("%s-%d-%s", pipeName, createTime, remoteIp);
   }
 
-  public static String getReceiverPipeLogDir(String pipeName, String remoteIp, 
long createTime) {
-    return getReceiverPipeDir(pipeName, remoteIp, createTime)
-        + File.separator
-        + SyncConstant.PIPE_LOG_DIR_NAME;
-  }
-
   public static String getReceiverFileDataDir(String pipeName, String 
remoteIp, long createTime) {
     return getReceiverPipeDir(pipeName, remoteIp, createTime)
         + File.separator
@@ -129,12 +74,6 @@ public class SyncPathUtil {
   }
 
   /** common */
-  public static String getSysDir() {
-    return CommonDescriptor.getInstance().getConfig().getSyncDir()
-        + File.separator
-        + SyncConstant.SYNC_SYS_DIR;
-  }
-
   public static String getPipeLogName(long serialNumber) {
     return serialNumber + SyncConstant.PIPE_LOG_NAME_SUFFIX;
   }
@@ -149,8 +88,4 @@ public class SyncPathUtil {
     }
     return file.createNewFile();
   }
-
-  public static String createMsg(String timeStr, String msg) {
-    return String.format("[%s] %s", timeStr, msg);
-  }
 }


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