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caogaofei pushed a commit to branch beyyes/feature/show_datanodes
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/beyyes/feature/show_datanodes 
by this push:
     new 87ca286765 add basic SHOW CLUSTER sql and statement implementation in 
IoTDB MPP mode
87ca286765 is described below

commit 87ca286765858202adf9913b3d8a71878199cdb5
Author: Beyyes <[email protected]>
AuthorDate: Sat May 28 15:48:57 2022 +0800

    add basic SHOW CLUSTER sql and statement implementation in IoTDB MPP mode
---
 .../org/apache/iotdb/db/qp/sql/IoTDBSqlParser.g4   |   7 +-
 .../antlr4/org/apache/iotdb/db/qp/sql/SqlLexer.g4  |   4 +
 .../thrift/ConfigNodeRPCServiceProcessor.java      |  18 ++++
 .../thrift/ConfigNodeRPCServiceProcessorTest.java  |  29 ++++++
 .../apache/iotdb/db/client/ConfigNodeClient.java   |  17 ++++
 .../iotdb/db/mpp/common/header/HeaderConstant.java |  24 +++++
 .../apache/iotdb/db/mpp/plan/analyze/Analyzer.java |   9 ++
 .../plan/execution/config/ConfigTaskVisitor.java   |   6 ++
 .../mpp/plan/execution/config/ShowClusterTask.java | 108 +++++++++++++++++++++
 .../iotdb/db/mpp/plan/parser/ASTVisitor.java       |   7 ++
 .../db/mpp/plan/statement/StatementVisitor.java    |   5 +
 .../statement/metadata/ShowClusterStatement.java   |   1 +
 .../src/main/thrift/confignode.thrift              |  10 ++
 13 files changed, 244 insertions(+), 1 deletion(-)

diff --git a/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/IoTDBSqlParser.g4 
b/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/IoTDBSqlParser.g4
index f513a4da7a..3ed03fe025 100644
--- a/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/IoTDBSqlParser.g4
+++ b/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/IoTDBSqlParser.g4
@@ -43,7 +43,7 @@ ddlStatement
     | dropFunction | dropTrigger | dropContinuousQuery | dropSchemaTemplate
     | setTTL | unsetTTL | startTrigger | stopTrigger | setSchemaTemplate | 
unsetSchemaTemplate
     | showStorageGroup | showDevices | showTimeseries | showChildPaths | 
showChildNodes
-    | showFunctions | showTriggers | showContinuousQueries | showTTL | 
showAllTTL
+    | showFunctions | showTriggers | showContinuousQueries | showTTL | 
showAllTTL | showCluster
     | showSchemaTemplates | showNodesInSchemaTemplate
     | showPathsUsingSchemaTemplate | showPathsSetSchemaTemplate
     | countStorageGroup | countDevices | countTimeseries | countNodes
@@ -295,6 +295,11 @@ showAllTTL
     : SHOW ALL TTL
     ;
 
+// Show Cluster
+showCluster
+    : SHOW CLUSTER
+    ;
+
 // Show Schema Template
 showSchemaTemplates
     : SHOW SCHEMA? TEMPLATES
diff --git a/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/SqlLexer.g4 
b/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/SqlLexer.g4
index fc114ebe63..110cbc65a0 100644
--- a/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/SqlLexer.g4
+++ b/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/SqlLexer.g4
@@ -117,6 +117,10 @@ CLEAR
     : C L E A R
     ;
 
+CLUSTER
+    : C L U S T E R
+    ;
+
 COMPRESSION
     : C O M P R E S S I O N
     ;
diff --git 
a/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java
 
b/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java
index 3b20df5131..a62363f623 100644
--- 
a/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java
+++ 
b/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java
@@ -19,6 +19,8 @@
 package org.apache.iotdb.confignode.service.thrift;
 
 import org.apache.iotdb.common.rpc.thrift.TConfigNodeLocation;
+import org.apache.iotdb.common.rpc.thrift.TDataNodeInfo;
+import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation;
 import org.apache.iotdb.common.rpc.thrift.TSStatus;
 import org.apache.iotdb.commons.auth.AuthException;
 import org.apache.iotdb.commons.conf.CommonDescriptor;
@@ -54,6 +56,7 @@ import 
org.apache.iotdb.confignode.rpc.thrift.NodeManagementType;
 import org.apache.iotdb.confignode.rpc.thrift.TAuthorizerReq;
 import org.apache.iotdb.confignode.rpc.thrift.TAuthorizerResp;
 import org.apache.iotdb.confignode.rpc.thrift.TCheckUserPrivilegesReq;
+import org.apache.iotdb.confignode.rpc.thrift.TClusterNodeInfos;
 import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterReq;
 import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterResp;
 import org.apache.iotdb.confignode.rpc.thrift.TCountStorageGroupResp;
@@ -79,6 +82,7 @@ import 
org.apache.iotdb.confignode.rpc.thrift.TStorageGroupSchemaResp;
 import org.apache.iotdb.db.mpp.common.schematree.PathPatternTree;
 import org.apache.iotdb.db.qp.logical.sys.AuthorOperator;
 
+import org.apache.iotdb.rpc.TSStatusCode;
 import org.apache.thrift.TException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -88,6 +92,7 @@ import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /** ConfigNodeRPCServer exposes the interface that interacts with the DataNode 
*/
 public class ConfigNodeRPCServiceProcessor implements ConfigIService.Iface {
@@ -135,6 +140,19 @@ public class ConfigNodeRPCServiceProcessor implements 
ConfigIService.Iface {
     return resp;
   }
 
+  @Override
+  public TClusterNodeInfos getAllClusterNodeInfos() throws TException {
+    List<TConfigNodeLocation> configNodeLocations =
+      configManager.getNodeManager().getOnlineConfigNodes();
+    List<TDataNodeLocation> dataNodeInfoLocations =
+      configManager.getNodeManager().getOnlineDataNodes(-1).stream().
+        map(TDataNodeInfo::getLocation).collect(Collectors.toList());
+
+    return new TClusterNodeInfos(
+      new TSStatus(TSStatusCode.SUCCESS_STATUS.getStatusCode()),
+      configNodeLocations, dataNodeInfoLocations);
+  }
+
   @Override
   public TSStatus setStorageGroup(TSetStorageGroupReq req) throws TException {
     TStorageGroupSchema storageGroupSchema = req.getStorageGroup();
diff --git 
a/confignode/src/test/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessorTest.java
 
b/confignode/src/test/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessorTest.java
index a3d02b596d..134b8cdbee 100644
--- 
a/confignode/src/test/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessorTest.java
+++ 
b/confignode/src/test/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessorTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.iotdb.confignode.service.thrift;
 
+import org.apache.iotdb.common.rpc.thrift.TConfigNodeLocation;
 import org.apache.iotdb.common.rpc.thrift.TConsensusGroupType;
 import org.apache.iotdb.common.rpc.thrift.TDataNodeInfo;
 import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation;
@@ -42,6 +43,7 @@ import 
org.apache.iotdb.confignode.rpc.thrift.NodeManagementType;
 import org.apache.iotdb.confignode.rpc.thrift.TAuthorizerReq;
 import org.apache.iotdb.confignode.rpc.thrift.TAuthorizerResp;
 import org.apache.iotdb.confignode.rpc.thrift.TCheckUserPrivilegesReq;
+import org.apache.iotdb.confignode.rpc.thrift.TClusterNodeInfos;
 import org.apache.iotdb.confignode.rpc.thrift.TCountStorageGroupResp;
 import org.apache.iotdb.confignode.rpc.thrift.TDataNodeInfoResp;
 import org.apache.iotdb.confignode.rpc.thrift.TDataNodeRegisterReq;
@@ -61,6 +63,7 @@ import org.apache.iotdb.confignode.rpc.thrift.TSetTTLReq;
 import org.apache.iotdb.confignode.rpc.thrift.TSetTimePartitionIntervalReq;
 import org.apache.iotdb.confignode.rpc.thrift.TStorageGroupSchema;
 import org.apache.iotdb.confignode.rpc.thrift.TStorageGroupSchemaResp;
+import org.apache.iotdb.db.client.ConfigNodeInfo;
 import org.apache.iotdb.db.mpp.common.schematree.PathPatternTree;
 import org.apache.iotdb.db.qp.logical.sys.AuthorOperator;
 import org.apache.iotdb.rpc.TSStatusCode;
@@ -203,6 +206,32 @@ public class ConfigNodeRPCServiceProcessorTest {
     Assert.assertEquals(dataNodeLocation, infoMap.get(1).getLocation());
   }
 
+  @Test
+  public void getAllClusterNodeInfosTest() throws TException {
+    registerDataNodes();
+
+    TClusterNodeInfos clusterNodes = processor.getAllClusterNodeInfos();
+
+    List<TConfigNodeLocation> configNodeInfos = 
clusterNodes.getConfigNodeList();
+    Assert.assertEquals(1, configNodeInfos.size());
+    TConfigNodeLocation configNodeLocation = new TConfigNodeLocation(
+      new TEndPoint("0.0.0.0", 22277),
+      new TEndPoint("0.0.0.0", 22278));
+    Assert.assertEquals(configNodeLocation, configNodeInfos.get(0));
+
+    List<TDataNodeLocation> dataNodeInfos = clusterNodes.getDataNodeList();
+    Assert.assertEquals(3, dataNodeInfos.size());
+    TDataNodeLocation dataNodeLocation = new TDataNodeLocation();
+    for (int i = 0; i < 3; i++) {
+      dataNodeLocation.setDataNodeId(i);
+      dataNodeLocation.setExternalEndPoint(new TEndPoint("0.0.0.0", 6667 + i));
+      dataNodeLocation.setInternalEndPoint(new TEndPoint("0.0.0.0", 9003 + i));
+      dataNodeLocation.setDataBlockManagerEndPoint(new TEndPoint("0.0.0.0", 
8777 + i));
+      dataNodeLocation.setConsensusEndPoint(new TEndPoint("0.0.0.0", 40010 + 
i));
+      Assert.assertEquals(dataNodeLocation, dataNodeInfos.get(i));
+    }
+  }
+
   @Test
   public void testSetAndQueryStorageGroup() throws TException {
     TSStatus status;
diff --git 
a/server/src/main/java/org/apache/iotdb/db/client/ConfigNodeClient.java 
b/server/src/main/java/org/apache/iotdb/db/client/ConfigNodeClient.java
index f1a9f40bda..704ecf7781 100644
--- a/server/src/main/java/org/apache/iotdb/db/client/ConfigNodeClient.java
+++ b/server/src/main/java/org/apache/iotdb/db/client/ConfigNodeClient.java
@@ -33,6 +33,7 @@ import org.apache.iotdb.confignode.rpc.thrift.ConfigIService;
 import org.apache.iotdb.confignode.rpc.thrift.TAuthorizerReq;
 import org.apache.iotdb.confignode.rpc.thrift.TAuthorizerResp;
 import org.apache.iotdb.confignode.rpc.thrift.TCheckUserPrivilegesReq;
+import org.apache.iotdb.confignode.rpc.thrift.TClusterNodeInfos;
 import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterReq;
 import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterResp;
 import org.apache.iotdb.confignode.rpc.thrift.TCountStorageGroupResp;
@@ -262,6 +263,22 @@ public class ConfigNodeClient implements 
ConfigIService.Iface, SyncThriftClient,
     throw new TException(MSG_RECONNECTION_FAIL);
   }
 
+  @Override
+  public TClusterNodeInfos getAllClusterNodeInfos() throws TException {
+    for (int i = 0; i < RETRY_NUM; i++) {
+      try {
+        TClusterNodeInfos resp = client.getAllClusterNodeInfos();
+        if (!updateConfigNodeLeader(resp.status)) {
+          return resp;
+        }
+      } catch (TException e) {
+        configLeader = null;
+      }
+      reconnect();
+    }
+    throw new TException(MSG_RECONNECTION_FAIL);
+  }
+
   @Override
   public TSStatus setStorageGroup(TSetStorageGroupReq req) throws TException {
     for (int i = 0; i < RETRY_NUM; i++) {
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/common/header/HeaderConstant.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/common/header/HeaderConstant.java
index 875bb50428..eed325b7fb 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/mpp/common/header/HeaderConstant.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/common/header/HeaderConstant.java
@@ -55,6 +55,13 @@ public class HeaderConstant {
   public static final String COLUMN_COUNT_TIMESERIES = "count(timeseries)";
   public static final String COLUMN_COUNT_STORAGE_GROUP = "count(storage 
group)";
 
+  // column names for show cluster statement
+  public static final String COLUMN_NODE_ID = "NodeID";
+  public static final String COLUMN_NODE_TYPE = "NodeType";
+  public static final String COLUMN_STATUS = "Status";
+  public static final String COLUMN_HOST_ADDRESS = "HostAdress";
+  public static final String COLUMN_PORT = "Port";
+
   // dataset header for schema statement
   public static final DatasetHeader showTimeSeriesHeader;
   public static final DatasetHeader showDevicesHeader;
@@ -71,6 +78,9 @@ public class HeaderConstant {
   public static final DatasetHeader countTimeSeriesHeader;
   public static final DatasetHeader countLevelTimeSeriesHeader;
 
+  // dataset header for show cluster statement
+  public static final DatasetHeader showClusterHeader;
+
   static {
     countStorageGroupHeader =
         new DatasetHeader(
@@ -145,4 +155,18 @@ public class HeaderConstant {
         new DatasetHeader(
             Arrays.asList(new ColumnHeader(COLUMN_CHILDNODES, 
TSDataType.TEXT)), true);
   }
+
+  static {
+    showClusterHeader =
+      new DatasetHeader(
+        Arrays.asList(
+          new ColumnHeader(COLUMN_NODE_ID, TSDataType.INT32),
+          new ColumnHeader(COLUMN_NODE_TYPE, TSDataType.TEXT),
+          new ColumnHeader(COLUMN_STATUS, TSDataType.TEXT),
+          new ColumnHeader(COLUMN_HOST_ADDRESS, TSDataType.TEXT),
+          new ColumnHeader(COLUMN_PORT, TSDataType.INT32)),
+        true);
+  }
+
+
 }
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java
index ee187b3c4e..cb67e57412 100644
--- a/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java
+++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java
@@ -67,6 +67,7 @@ import 
org.apache.iotdb.db.mpp.plan.statement.metadata.DeleteTimeSeriesStatement
 import org.apache.iotdb.db.mpp.plan.statement.metadata.SchemaFetchStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowChildNodesStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowChildPathsStatement;
+import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowClusterStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowDevicesStatement;
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.ShowStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTTLStatement;
@@ -1137,6 +1138,14 @@ public class Analyzer {
       return analysis;
     }
 
+    @Override
+    public Analysis visitShowCluster(ShowClusterStatement 
showClusterStatement, MPPQueryContext context) {
+      Analysis analysis = new Analysis();
+      analysis.setStatement(showClusterStatement);
+      analysis.setRespDatasetHeader(HeaderConstant.showClusterHeader);
+      return analysis;
+    }
+
     @Override
     public Analysis visitCountStorageGroup(
         CountStorageGroupStatement countStorageGroupStatement, MPPQueryContext 
context) {
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ConfigTaskVisitor.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ConfigTaskVisitor.java
index 671edfb68b..a5a6091e4d 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ConfigTaskVisitor.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ConfigTaskVisitor.java
@@ -26,6 +26,7 @@ import 
org.apache.iotdb.db.mpp.plan.statement.metadata.CountStorageGroupStatemen
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.DeleteStorageGroupStatement;
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.SetStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.SetTTLStatement;
+import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowClusterStatement;
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.ShowStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTTLStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.UnSetTTLStatement;
@@ -83,6 +84,11 @@ public class ConfigTaskVisitor
     return new ShowTTLTask(showTTLStatement);
   }
 
+  @Override
+  public IConfigTask visitShowCluster(ShowClusterStatement 
showClusterStatement, TaskContext context) {
+    return new ShowClusterTask(showClusterStatement);
+  }
+
   @Override
   public IConfigTask visitAuthor(AuthorStatement statement, TaskContext 
context) {
     return new AuthorizerConfigTask(statement);
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ShowClusterTask.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ShowClusterTask.java
new file mode 100644
index 0000000000..8faa1298ef
--- /dev/null
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/ShowClusterTask.java
@@ -0,0 +1,108 @@
+/*
+ * 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.db.mpp.plan.execution.config;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.SettableFuture;
+import org.apache.iotdb.common.rpc.thrift.TConfigNodeLocation;
+import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation;
+import org.apache.iotdb.common.rpc.thrift.TEndPoint;
+import org.apache.iotdb.commons.client.IClientManager;
+import org.apache.iotdb.commons.consensus.PartitionRegionId;
+import org.apache.iotdb.confignode.rpc.thrift.TClusterNodeInfos;
+import org.apache.iotdb.confignode.rpc.thrift.TStorageGroupSchemaResp;
+import org.apache.iotdb.db.client.ConfigNodeClient;
+import org.apache.iotdb.db.client.ConfigNodeInfo;
+import org.apache.iotdb.db.conf.IoTDBConfig;
+import org.apache.iotdb.db.conf.IoTDBDescriptor;
+import org.apache.iotdb.db.localconfignode.LocalConfigNode;
+import org.apache.iotdb.db.mpp.common.header.DatasetHeader;
+import org.apache.iotdb.db.mpp.common.header.HeaderConstant;
+import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowClusterStatement;
+import org.apache.iotdb.rpc.TSStatusCode;
+import org.apache.iotdb.tsfile.read.common.block.TsBlockBuilder;
+import org.apache.iotdb.tsfile.utils.Binary;
+import org.apache.thrift.TException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.List;
+
+public class ShowClusterTask implements IConfigTask {
+
+  private static final Logger LOGGER = 
LoggerFactory.getLogger(ShowClusterTask.class);
+
+  private static final IoTDBConfig config = 
IoTDBDescriptor.getInstance().getConfig();
+
+  private ShowClusterStatement showClusterStatement;
+
+  public ShowClusterTask(ShowClusterStatement showClusterStatement) {
+    this.showClusterStatement = showClusterStatement;
+  }
+
+  @Override
+  public ListenableFuture<ConfigTaskResult> execute(
+    IClientManager<PartitionRegionId, ConfigNodeClient> clientManager)
+    throws InterruptedException {
+    SettableFuture<ConfigTaskResult> future = SettableFuture.create();
+    TClusterNodeInfos clusterNodeInfos = new TClusterNodeInfos();
+
+    if (config.isClusterMode()) {
+      try (ConfigNodeClient client = 
clientManager.borrowClient(ConfigNodeInfo.partitionRegionId)) {
+        clusterNodeInfos = client.getAllClusterNodeInfos();
+      } catch (TException | IOException e) {
+        LOGGER.error("Failed to connect to config node.");
+        future.setException(e);
+      }
+    } else {
+      // TODO how to get property in localConfigNode
+      LocalConfigNode localConfigNode = LocalConfigNode.getInstance();
+      config.getDataNodeId();
+    }
+
+    // build TSBlock
+    TsBlockBuilder builder =
+      new TsBlockBuilder(HeaderConstant.showClusterHeader.getRespDataTypes());
+    int configNodeId = 0;
+    for (TConfigNodeLocation nodeLocation : 
clusterNodeInfos.getConfigNodeList()) {
+      builder.getTimeColumnBuilder().writeLong(0L);
+      builder.getColumnBuilder(0).writeInt(configNodeId++);
+      builder.getColumnBuilder(1).writeBinary(new Binary("ConfigNode"));
+      builder.getColumnBuilder(2).writeBinary(new Binary("Running"));
+      builder.getColumnBuilder(3).writeBinary(new 
Binary(nodeLocation.getInternalEndPoint().getIp()));
+      
builder.getColumnBuilder(4).writeInt(nodeLocation.getInternalEndPoint().getPort());
+      builder.declarePosition();
+    }
+    for (TDataNodeLocation nodeLocation : clusterNodeInfos.getDataNodeList()) {
+      builder.getTimeColumnBuilder().writeLong(0L);
+      builder.getColumnBuilder(0).writeInt(nodeLocation.getDataNodeId());
+      builder.getColumnBuilder(1).writeBinary(new Binary("DataNode"));
+      builder.getColumnBuilder(2).writeBinary(new Binary("Running"));
+      builder.getColumnBuilder(3).writeBinary(new 
Binary(nodeLocation.getInternalEndPoint().getIp()));
+      
builder.getColumnBuilder(4).writeInt(nodeLocation.getInternalEndPoint().getPort());
+      builder.declarePosition();
+    }
+
+    DatasetHeader datasetHeader = HeaderConstant.showClusterHeader;
+    future.set(new ConfigTaskResult(TSStatusCode.SUCCESS_STATUS, 
builder.build(), datasetHeader));
+    return future;
+  }
+}
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java
index 74236f6a1c..f02c2a30a9 100644
--- a/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java
+++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java
@@ -85,6 +85,7 @@ import 
org.apache.iotdb.db.mpp.plan.statement.metadata.SetStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.SetTTLStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowChildNodesStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowChildPathsStatement;
+import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowClusterStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowDevicesStatement;
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.ShowStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTTLStatement;
@@ -1520,6 +1521,12 @@ public class ASTVisitor extends 
IoTDBSqlParserBaseVisitor<Statement> {
     return showTTLStatement;
   }
 
+  @Override
+  public Statement visitShowCluster(IoTDBSqlParser.ShowClusterContext ctx) {
+    ShowClusterStatement showClusterStatement = new ShowClusterStatement();
+    return showClusterStatement;
+  }
+
   @Override
   public Statement 
visitDeleteStorageGroup(IoTDBSqlParser.DeleteStorageGroupContext ctx) {
     DeleteStorageGroupStatement deleteStorageGroupStatement = new 
DeleteStorageGroupStatement();
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java
index b8ceb59787..91d5cabc46 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java
@@ -41,6 +41,7 @@ import 
org.apache.iotdb.db.mpp.plan.statement.metadata.SetStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.SetTTLStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowChildNodesStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowChildPathsStatement;
+import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowClusterStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowDevicesStatement;
 import 
org.apache.iotdb.db.mpp.plan.statement.metadata.ShowStorageGroupStatement;
 import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTTLStatement;
@@ -119,6 +120,10 @@ public abstract class StatementVisitor<R, C> {
     return visitStatement(showTTLStatement, context);
   }
 
+  public R visitShowCluster(ShowClusterStatement showClusterStatement, C 
context) {
+    return visitStatement(showClusterStatement, context);
+  }
+
   /** Data Manipulation Language (DML) */
 
   // Select Statement
diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/metadata/ShowClusterStatement.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/metadata/ShowClusterStatement.java
new file mode 100644
index 0000000000..c4761f2adf
--- /dev/null
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/metadata/ShowClusterStatement.java
@@ -0,0 +1 @@
+package org.apache.iotdb.db.mpp.plan.statement.metadata;

import org.apache.iotdb.db.mpp.plan.analyze.QueryType;
import org.apache.iotdb.db.mpp.plan.statement.IConfigStatement;
import org.apache.iotdb.db.mpp.plan.statement.StatementVisitor;

public class ShowClusterStatement extends ShowStatement implements 
IConfigStatement {

  @Override
  public QueryType getQueryType() {
    return QueryType.READ;
  }

  @Override
  public <R, C> R accept(StatementVisitor<R, C> visitor, C context) {
    return visitor.visitShowCluster(this, context);
  }

}
\ No newline at end of file
diff --git a/thrift-confignode/src/main/thrift/confignode.thrift 
b/thrift-confignode/src/main/thrift/confignode.thrift
index 4b933e548f..92d0564712 100644
--- a/thrift-confignode/src/main/thrift/confignode.thrift
+++ b/thrift-confignode/src/main/thrift/confignode.thrift
@@ -193,6 +193,13 @@ struct TConfigNodeRegisterResp {
   3: optional list<common.TConfigNodeLocation> configNodeList
 }
 
+// Show cluster
+struct TClusterNodeInfos {
+  1: required common.TSStatus status
+  2: required list<common.TConfigNodeLocation> configNodeList
+  3: required list<common.TDataNodeLocation> dataNodeList
+}
+
 service ConfigIService {
 
   /* DataNode */
@@ -201,6 +208,9 @@ service ConfigIService {
 
   TDataNodeInfoResp getDataNodeInfo(i32 dataNodeId)
 
+  /* Show Cluster */
+  TClusterNodeInfos getAllClusterNodeInfos()
+
   /* StorageGroup */
 
   common.TSStatus setStorageGroup(TSetStorageGroupReq req)

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