diff --git a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/BaseClientRequest.java b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/BaseClientRequest.java
index 99cda09..db633e6 100644
--- a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/BaseClientRequest.java
+++ b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/BaseClientRequest.java
@@ -93,7 +93,8 @@
         return JSONUtil.convertNodeUnchecked(asJson());
     }
 
-    protected ObjectNode asJson() {
+    @Override
+    public ObjectNode asJson() {
         ObjectNode json = JSONUtil.createObject();
         json.put("uuid", requestReference.getUuid());
         json.put("requestTime", new ADateTime(requestReference.getTime()).toSimpleString());
diff --git a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ClientRequest.java b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ClientRequest.java
index c19bb02..4f19366 100644
--- a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ClientRequest.java
+++ b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ClientRequest.java
@@ -76,7 +76,7 @@
     }
 
     @Override
-    protected ObjectNode asJson() {
+    public ObjectNode asJson() {
         ObjectNode json = super.asJson();
         json.put("jobId", jobId != null ? jobId.toString() : null);
         json.put("statement", statement);
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractRequestsServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractRequestsServlet.java
new file mode 100644
index 0000000..285c4c8
--- /dev/null
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractRequestsServlet.java
@@ -0,0 +1,60 @@
+/*
+ * 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.asterix.api.http.server;
+
+import java.util.Collection;
+import java.util.concurrent.ConcurrentMap;
+
+import org.apache.asterix.common.api.IClientRequest;
+import org.apache.asterix.common.dataflow.ICcApplicationContext;
+import org.apache.hyracks.http.api.IServletRequest;
+import org.apache.hyracks.http.api.IServletResponse;
+import org.apache.hyracks.http.server.AbstractServlet;
+import org.apache.hyracks.http.server.utils.HttpUtil;
+import org.apache.hyracks.util.JSONUtil;
+
+import com.fasterxml.jackson.databind.node.ArrayNode;
+
+import io.netty.handler.codec.http.HttpResponseStatus;
+
+public abstract class AbstractRequestsServlet extends AbstractServlet {
+
+    protected final ICcApplicationContext appCtx;
+
+    public AbstractRequestsServlet(ConcurrentMap<String, Object> ctx, ICcApplicationContext appCtx, String... paths) {
+        super(ctx, paths);
+        this.appCtx = appCtx;
+    }
+
+    @Override
+    protected void get(IServletRequest request, IServletResponse response) throws Exception {
+        ArrayNode requestsJson = JSONUtil.createArray();
+        Collection<IClientRequest> requests = getRequests();
+        for (IClientRequest req : requests) {
+            requestsJson.add(req.asJson());
+        }
+        HttpUtil.setContentType(response, HttpUtil.ContentType.APPLICATION_JSON, request);
+        response.setStatus(HttpResponseStatus.OK);
+        JSONUtil.writeNode(response.writer(), requestsJson);
+        response.writer().flush();
+    }
+
+    abstract Collection<IClientRequest> getRequests();
+
+}
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/CcQueryCancellationServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/ActiveRequestsServlet.java
similarity index 83%
rename from asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/CcQueryCancellationServlet.java
rename to asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/ActiveRequestsServlet.java
index 7ba2867..7e00e9a 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/CcQueryCancellationServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/ActiveRequestsServlet.java
@@ -19,6 +19,7 @@
 package org.apache.asterix.api.http.server;
 
 import java.io.IOException;
+import java.util.Collection;
 import java.util.concurrent.ConcurrentMap;
 
 import org.apache.asterix.api.http.server.QueryServiceRequestParameters.Parameter;
@@ -27,7 +28,6 @@
 import org.apache.asterix.common.dataflow.ICcApplicationContext;
 import org.apache.hyracks.http.api.IServletRequest;
 import org.apache.hyracks.http.api.IServletResponse;
-import org.apache.hyracks.http.server.AbstractServlet;
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -35,24 +35,27 @@
 import io.netty.handler.codec.http.HttpResponseStatus;
 
 /**
- * The servlet provides a REST API for cancelling an on-going query.
+ * The servlet provides a REST API for getting the running queries or cancelling an on-going one.
  */
-public class CcQueryCancellationServlet extends AbstractServlet {
+public class ActiveRequestsServlet extends AbstractRequestsServlet {
 
     public static final String REQUEST_UUID_PARAM_NAME = "request_id";
     private static final Logger LOGGER = LogManager.getLogger();
-    private final ICcApplicationContext appCtx;
 
-    public CcQueryCancellationServlet(ConcurrentMap<String, Object> ctx, ICcApplicationContext appCtx,
-            String... paths) {
-        super(ctx, paths);
-        this.appCtx = appCtx;
+    public ActiveRequestsServlet(ConcurrentMap<String, Object> ctx, ICcApplicationContext appCtx, String... paths) {
+        super(ctx, appCtx, paths);
+    }
+
+    @Override
+    public Collection<IClientRequest> getRequests() {
+        return appCtx.getRequestTracker().getRunningRequests();
     }
 
     @Override
     protected void delete(IServletRequest request, IServletResponse response) throws IOException {
         String uuid = request.getParameter(REQUEST_UUID_PARAM_NAME);
         String clientCtxId = request.getParameter(Parameter.CLIENT_ID.str());
+        LOGGER.debug("received cancel request, uuid={}, clientCtxId={}", uuid, clientCtxId);
         if (uuid == null && clientCtxId == null) {
             response.setStatus(HttpResponseStatus.BAD_REQUEST);
             return;
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/CompletedRequestsServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/CompletedRequestsServlet.java
new file mode 100644
index 0000000..92eacbb
--- /dev/null
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/CompletedRequestsServlet.java
@@ -0,0 +1,38 @@
+/*
+ * 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.asterix.api.http.server;
+
+import java.util.Collection;
+import java.util.concurrent.ConcurrentMap;
+
+import org.apache.asterix.common.api.IClientRequest;
+import org.apache.asterix.common.dataflow.ICcApplicationContext;
+
+public class CompletedRequestsServlet extends AbstractRequestsServlet {
+
+    public CompletedRequestsServlet(ConcurrentMap<String, Object> ctx, ICcApplicationContext appCtx, String... paths) {
+        super(ctx, appCtx, paths);
+    }
+
+    @Override
+    public Collection<IClientRequest> getRequests() {
+        return appCtx.getRequestTracker().getCompletedRequests();
+    }
+
+}
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryCancellationServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryCancellationServlet.java
index b2134dc..5dd9430 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryCancellationServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryCancellationServlet.java
@@ -18,7 +18,7 @@
  */
 package org.apache.asterix.api.http.server;
 
-import static org.apache.asterix.api.http.server.CcQueryCancellationServlet.REQUEST_UUID_PARAM_NAME;
+import static org.apache.asterix.api.http.server.ActiveRequestsServlet.REQUEST_UUID_PARAM_NAME;
 import static org.apache.asterix.app.message.ExecuteStatementRequestMessage.DEFAULT_NC_TIMEOUT_MILLIS;
 
 import java.util.concurrent.ConcurrentMap;
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/CCApplication.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/CCApplication.java
index bc67823..1b011ae 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/CCApplication.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/CCApplication.java
@@ -37,9 +37,9 @@
 import java.util.concurrent.ConcurrentMap;
 
 import org.apache.asterix.api.http.IQueryWebServerRegistrant;
+import org.apache.asterix.api.http.server.ActiveRequestsServlet;
 import org.apache.asterix.api.http.server.ActiveStatsApiServlet;
 import org.apache.asterix.api.http.server.ApiServlet;
-import org.apache.asterix.api.http.server.CcQueryCancellationServlet;
 import org.apache.asterix.api.http.server.ClusterApiServlet;
 import org.apache.asterix.api.http.server.ClusterControllerDetailsApiServlet;
 import org.apache.asterix.api.http.server.ConnectorApiServlet;
@@ -315,7 +315,7 @@
         ConcurrentMap<String, Object> ctx = server.ctx();
         switch (key) {
             case Servlets.RUNNING_REQUESTS:
-                return new CcQueryCancellationServlet(ctx, appCtx, paths);
+                return new ActiveRequestsServlet(ctx, appCtx, paths);
             case Servlets.QUERY_STATUS:
                 return new QueryStatusApiServlet(ctx, appCtx, paths);
             case Servlets.QUERY_RESULT:
diff --git a/asterixdb/asterix-app/src/test/java/org/apache/asterix/api/http/servlet/QueryCancellationServletTest.java b/asterixdb/asterix-app/src/test/java/org/apache/asterix/api/http/servlet/QueryCancellationServletTest.java
index 68fb9a8..b38c366 100644
--- a/asterixdb/asterix-app/src/test/java/org/apache/asterix/api/http/servlet/QueryCancellationServletTest.java
+++ b/asterixdb/asterix-app/src/test/java/org/apache/asterix/api/http/servlet/QueryCancellationServletTest.java
@@ -27,7 +27,7 @@
 
 import java.util.concurrent.ConcurrentHashMap;
 
-import org.apache.asterix.api.http.server.CcQueryCancellationServlet;
+import org.apache.asterix.api.http.server.ActiveRequestsServlet;
 import org.apache.asterix.api.http.server.ServletConstants;
 import org.apache.asterix.app.translator.RequestParameters;
 import org.apache.asterix.common.api.RequestReference;
@@ -57,8 +57,8 @@
         RequestTracker tracker = new RequestTracker(appCtx);
         Mockito.when(appCtx.getRequestTracker()).thenReturn(tracker);
         // Creates a query cancellation servlet.
-        CcQueryCancellationServlet cancellationServlet =
-                new CcQueryCancellationServlet(new ConcurrentHashMap<>(), appCtx, new String[] { "/" });
+        ActiveRequestsServlet cancellationServlet =
+                new ActiveRequestsServlet(new ConcurrentHashMap<>(), appCtx, new String[] { "/" });
         // Adds mocked Hyracks client connection into the servlet context.
         IHyracksClientConnection mockHcc = mock(IHyracksClientConnection.class);
         cancellationServlet.ctx().put(ServletConstants.HYRACKS_CONNECTION_ATTR, mockHcc);
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/api/IClientRequest.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/api/IClientRequest.java
index 921fb64..3157c64 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/api/IClientRequest.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/api/IClientRequest.java
@@ -21,6 +21,8 @@
 import org.apache.asterix.common.dataflow.ICcApplicationContext;
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
 public interface IClientRequest {
 
     enum State {
@@ -86,7 +88,13 @@
     void cancel(ICcApplicationContext appCtx) throws HyracksDataException;
 
     /**
-     * @return A json representation of this request
+     * @return A json string representation of this request
      */
     String toJson();
+
+    /**
+     * @return A json node representation of this request
+     */
+    ObjectNode asJson();
+
 }