zjffdu commented on a change in pull request #3390: [ZEPPELIN-3784] Cluster management web page URL: https://github.com/apache/zeppelin/pull/3390#discussion_r300627577
########## File path: zeppelin-server/src/main/java/org/apache/zeppelin/rest/ClusterRestApi.java ########## @@ -0,0 +1,275 @@ +/* + * 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.zeppelin.rest; + +import com.google.gson.Gson; +import org.apache.zeppelin.annotation.ZeppelinApi; +import org.apache.zeppelin.cluster.ClusterManagerServer; +import org.apache.zeppelin.cluster.meta.ClusterMeta; +import org.apache.zeppelin.cluster.meta.ClusterMetaType; +import org.apache.zeppelin.conf.ZeppelinConfiguration; +import org.apache.zeppelin.server.JsonResponse; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import javax.ws.rs.GET; +import javax.ws.rs.Path; +import javax.ws.rs.PathParam; +import javax.ws.rs.Produces; +import javax.ws.rs.core.Response; +import java.time.LocalDateTime; +import java.util.ArrayList; +import java.util.Date; +import java.util.HashMap; +import java.util.Map; + +/** + * clusters Rest api. + */ +@Path("/cluster") +@Produces("application/json") +public class ClusterRestApi { + private static final Logger LOG = LoggerFactory.getLogger(ClusterRestApi.class); + Gson gson = new Gson(); + + private ClusterManagerServer clusterManagerServer = ClusterManagerServer.getInstance(); + + // Do not modify, Use by `zeppelin-web/src/app/cluster/cluster.html` + private static String PROPERTIES = "properties"; + + private boolean isTest = false; + + @GET + @Path("/address") + @ZeppelinApi + public Response getClusterAddress() { + ZeppelinConfiguration zconf = ZeppelinConfiguration.create(); + String clusterAddr = zconf.getClusterAddress(); + Map<String, String> data = new HashMap<>(); + data.put("clusterAddr", clusterAddr); + + return new JsonResponse<>(Response.Status.OK, "Cluster Address", data).build(); + } + + /** + * get all nodes of clusters + */ + @GET + @Path("/nodes") + @ZeppelinApi + public Response getClusterNodes(){ + ArrayList<HashMap<String, Object>> nodes = new ArrayList<HashMap<String, Object>>(); + + Map<String, HashMap<String, Object>> clusterMeta = null; + Map<String, HashMap<String, Object>> intpMeta = null; + if (isTest) { + clusterMeta = mockNodesMeta(); + intpMeta = mockIntpMeta(); + } else { + clusterMeta = clusterManagerServer.getClusterMeta(ClusterMetaType.SERVER_META, ""); + intpMeta = clusterManagerServer.getClusterMeta(ClusterMetaType.INTP_PROCESS_META, ""); + } + + // Number of calculation processes + for (Map.Entry<String, HashMap<String, Object>> serverMetaEntity : clusterMeta.entrySet()) { + if (!serverMetaEntity.getValue().containsKey(ClusterMeta.NODE_NAME)) { + continue; + } + String serverNodeName = (String) serverMetaEntity.getValue().get(ClusterMeta.NODE_NAME); + + ArrayList<String> arrIntpProcess = new ArrayList<>(); + int intpProcCount = 0; + for (Map.Entry<String, HashMap<String, Object>> intpMetaEntity : intpMeta.entrySet()) { + if (!intpMetaEntity.getValue().containsKey(ClusterMeta.NODE_NAME) + && !intpMetaEntity.getValue().containsKey(ClusterMeta.INTP_PROCESS_NAME)) { + continue; + } + String intpNodeName = (String) intpMetaEntity.getValue().get(ClusterMeta.NODE_NAME); + + if (serverNodeName.equals(intpNodeName)) { + intpProcCount ++; + String intpName = (String) intpMetaEntity.getValue().get(ClusterMeta.INTP_PROCESS_NAME); + arrIntpProcess.add(intpName); + } + } + serverMetaEntity.getValue().put(ClusterMeta.INTP_PROCESS_COUNT, intpProcCount); + serverMetaEntity.getValue().put(ClusterMeta.INTP_PROCESS_LIST, arrIntpProcess); + } + + for (Map.Entry<String, HashMap<String, Object>> entry : clusterMeta.entrySet()) { + String nodeName = entry.getKey(); + Map<String, Object> properties = entry.getValue(); + + Map<String, Object> sortProperties = new HashMap<>(); + + if (properties.containsKey(ClusterMeta.CPU_USED) + && properties.containsKey(ClusterMeta.CPU_CAPACITY)) { + float cpuUsed = (long) properties.get(ClusterMeta.CPU_USED) / (float) 100.0; + float cpuCapacity = (long) properties.get(ClusterMeta.CPU_CAPACITY) / (float) 100.0; + float cpuRate = cpuUsed / cpuCapacity * 100; + + String cpuInfo = String.format("%.2f / %.2f = %.2f", cpuUsed, cpuCapacity, cpuRate); + sortProperties.put(ClusterMeta.CPU_USED + " / " + ClusterMeta.CPU_CAPACITY, cpuInfo + "%"); + } + + if (properties.containsKey(ClusterMeta.MEMORY_USED) + && properties.containsKey(ClusterMeta.MEMORY_CAPACITY)) { + float memoryUsed = (long) properties.get(ClusterMeta.MEMORY_USED) / (float) (1024*1024*1024); + float memoryCapacity = (long) properties.get(ClusterMeta.MEMORY_CAPACITY) / (float) (1024*1024*1024); + float memoryRate = memoryUsed / memoryCapacity * 100; + + String memoryInfo = String.format("%.2fGB / %.2fGB = %.2f", + memoryUsed, memoryCapacity, memoryRate); + sortProperties.put(ClusterMeta.MEMORY_USED + " / " + ClusterMeta.MEMORY_CAPACITY, memoryInfo + "%"); + } + + if (properties.containsKey(ClusterMeta.SERVER_START_TIME)) { + sortProperties.put(ClusterMeta.SERVER_START_TIME, properties.get(ClusterMeta.SERVER_START_TIME)); + } + if (properties.containsKey(ClusterMeta.STATUS)) { + sortProperties.put(ClusterMeta.STATUS, properties.get(ClusterMeta.STATUS)); + } + if (properties.containsKey(ClusterMeta.LATEST_HEARTBEAT)) { + sortProperties.put(ClusterMeta.LATEST_HEARTBEAT, properties.get(ClusterMeta.LATEST_HEARTBEAT)); + } + if (properties.containsKey(ClusterMeta.INTP_PROCESS_LIST)) { + sortProperties.put(ClusterMeta.INTP_PROCESS_LIST, properties.get(ClusterMeta.INTP_PROCESS_LIST)); + } + + HashMap<String, Object> node = new HashMap<String, Object>(); + node.put(ClusterMeta.NODE_NAME, nodeName); + node.put(PROPERTIES, sortProperties); + + nodes.add(node); + } + + return new JsonResponse(Response.Status.OK, "", nodes).build(); + } + + private String formatIntpLink(String intpName) { + return String.format("<a href=\"/#/cluster/%s\">%s</a>", intpName, intpName); + } + + /** + * get node info by id + */ + @GET + @Path("/node/{nodeName}/{intpName}") + @ZeppelinApi + public Response getClusterNode(@PathParam("nodeName") String nodeName, + @PathParam("intpName") String intpName){ + ArrayList<HashMap<String, Object>> intpProcesses = new ArrayList<HashMap<String, Object>>(); + + Map<String, HashMap<String, Object>> intpMeta = null; + if (isTest) { + intpMeta = mockIntpMeta(); + } else { + intpMeta = clusterManagerServer.getClusterMeta(ClusterMetaType.INTP_PROCESS_META, ""); + } + + // Number of calculation processes + for (Map.Entry<String, HashMap<String, Object>> intpMetaEntity : intpMeta.entrySet()) { + String intpNodeName = (String) intpMetaEntity.getValue().get(ClusterMeta.NODE_NAME); + + if (null != intpNodeName && intpNodeName.equals(nodeName)) { + HashMap<String, Object> node = new HashMap<String, Object>(); + node.put(ClusterMeta.NODE_NAME, intpNodeName); + node.put(PROPERTIES, intpMetaEntity.getValue()); + intpProcesses.add(node); + } + } + + return new JsonResponse(Response.Status.OK, "", intpProcesses).build(); + } + + + private Map<String, HashMap<String, Object>> mockNodesMeta() { + Map<String, HashMap<String, Object>> serverMeta = new HashMap<>(); + + for (Integer i = 0; i < 32; i ++) { + HashMap<String, Object> nodeMeta = new HashMap<>(); + nodeMeta.put(ClusterMeta.NODE_NAME, "127.0.0." + i.toString() + ":" + "8080"); + nodeMeta.put(ClusterMeta.SERVER_HOST, "127.0.0." + i.toString()); + nodeMeta.put(ClusterMeta.SERVER_PORT, "8080"); + nodeMeta.put(ClusterMeta.MEMORY_USED, 100); + nodeMeta.put(ClusterMeta.MEMORY_CAPACITY, 4800); + nodeMeta.put(ClusterMeta.CPU_USED, 200); + nodeMeta.put(ClusterMeta.CPU_CAPACITY, 10000); + nodeMeta.put(ClusterMeta.SERVER_HOST, "host1"); + nodeMeta.put(ClusterMeta.SERVER_PORT, 1084); + nodeMeta.put(ClusterMeta.STATUS, ClusterMeta.ONLINE_STATUS); + nodeMeta.put(ClusterMeta.SERVER_START_TIME, LocalDateTime.now()); + nodeMeta.put(ClusterMeta.LATEST_HEARTBEAT, LocalDateTime.now()); + + serverMeta.put("127.0.0." + i.toString() + ":" + "8080", nodeMeta); + } + + return serverMeta; + } + + private Map<String, HashMap<String, Object>> mockIntpMeta() { Review comment: test code should not be put in this class ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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