| /* |
| * 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.accumulo.monitor.rest.status; |
| |
| import java.util.List; |
| |
| import jakarta.inject.Inject; |
| import jakarta.ws.rs.GET; |
| import jakarta.ws.rs.Path; |
| import jakarta.ws.rs.Produces; |
| import jakarta.ws.rs.core.MediaType; |
| |
| import org.apache.accumulo.core.master.thrift.ManagerMonitorInfo; |
| import org.apache.accumulo.monitor.Monitor; |
| |
| /** |
| * Generates the status for manager, gc, and tservers as well as log and problem reports |
| * |
| * @since 2.0.0 |
| */ |
| @Path("/status") |
| @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML}) |
| public class StatusResource { |
| |
| @Inject |
| private Monitor monitor; |
| |
| public enum Status { |
| OK, ERROR, WARN |
| } |
| |
| /** |
| * Generates the JSON object with the status |
| * |
| * @return Status report |
| */ |
| @GET |
| public StatusInformation getTables() { |
| |
| Status managerStatus; |
| Status gcStatus; |
| Status tServerStatus = Status.ERROR; |
| ManagerMonitorInfo mmi = monitor.getMmi(); |
| |
| if (mmi != null) { |
| if (monitor.getGcStatus() != null) { |
| gcStatus = Status.OK; |
| } else { |
| gcStatus = Status.ERROR; |
| } |
| |
| List<String> managers = monitor.getContext().getManagerLocations(); |
| managerStatus = managers.isEmpty() ? Status.ERROR : Status.OK; |
| |
| int tServerUp = mmi.getTServerInfoSize(); |
| int tServerDown = mmi.getDeadTabletServersSize(); |
| int tServerBad = mmi.getBadTServersSize(); |
| |
| /* |
| * If there are no dead or bad servers and there are tservers up, status is OK, if there are |
| * dead or bad servers and there is at least a tserver up, status is WARN, otherwise, the |
| * status is an error. |
| */ |
| if ((tServerDown > 0 || tServerBad > 0) && tServerUp > 0) { |
| tServerStatus = Status.WARN; |
| } else if ((tServerDown == 0 || tServerBad == 0) && tServerUp > 0) { |
| tServerStatus = Status.OK; |
| } else if (tServerUp == 0) { |
| tServerStatus = Status.ERROR; |
| } |
| } else { |
| managerStatus = Status.ERROR; |
| if (monitor.getGcStatus() == null) { |
| gcStatus = Status.ERROR; |
| } else { |
| gcStatus = Status.OK; |
| } |
| tServerStatus = Status.ERROR; |
| } |
| |
| return new StatusInformation(managerStatus.toString(), gcStatus.toString(), |
| tServerStatus.toString(), monitor.recentLogs().numEvents(), |
| monitor.recentLogs().eventsIncludeErrors(), monitor.getProblemSummary().entrySet().size()); |
| } |
| } |