| // 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 com.cloud.alert; |
| |
| import java.util.Map; |
| |
| import javax.inject.Inject; |
| import javax.naming.ConfigurationException; |
| |
| import org.apache.log4j.Logger; |
| import org.springframework.stereotype.Component; |
| |
| import com.cloud.cluster.ClusterManager; |
| import com.cloud.cluster.ClusterNodeJoinEventArgs; |
| import com.cloud.cluster.ClusterNodeLeftEventArgs; |
| import com.cloud.cluster.ManagementServerHostVO; |
| import com.cloud.cluster.dao.ManagementServerHostDao; |
| import com.cloud.utils.component.AdapterBase; |
| import com.cloud.utils.events.EventArgs; |
| import com.cloud.utils.events.SubscriptionMgr; |
| |
| @Component |
| public class ClusterAlertAdapter extends AdapterBase implements AlertAdapter { |
| |
| private static final Logger s_logger = Logger.getLogger(ClusterAlertAdapter.class); |
| |
| @Inject |
| private AlertManager _alertMgr; |
| @Inject |
| private ManagementServerHostDao _mshostDao; |
| |
| public void onClusterAlert(Object sender, EventArgs args) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("Receive cluster alert, EventArgs: " + args.getClass().getName()); |
| } |
| |
| if (args instanceof ClusterNodeJoinEventArgs) { |
| onClusterNodeJoined(sender, (ClusterNodeJoinEventArgs)args); |
| } else if (args instanceof ClusterNodeLeftEventArgs) { |
| onClusterNodeLeft(sender, (ClusterNodeLeftEventArgs)args); |
| } else { |
| s_logger.error("Unrecognized cluster alert event"); |
| } |
| } |
| |
| private void onClusterNodeJoined(Object sender, ClusterNodeJoinEventArgs args) { |
| if (s_logger.isDebugEnabled()) { |
| for (ManagementServerHostVO mshost : args.getJoinedNodes()) { |
| s_logger.debug("Handle cluster node join alert, joined node: " + mshost.getServiceIP() + ", msid: " + mshost.getMsid()); |
| } |
| } |
| |
| for (ManagementServerHostVO mshost : args.getJoinedNodes()) { |
| if (mshost.getId() == args.getSelf().longValue()) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("Management server node " + mshost.getServiceIP() + " is up, send alert"); |
| } |
| |
| _alertMgr.sendAlert(AlertManager.AlertType.ALERT_TYPE_MANAGEMENT_NODE, 0, new Long(0), "Management server node " + mshost.getServiceIP() + " is up", ""); |
| break; |
| } |
| } |
| } |
| |
| private void onClusterNodeLeft(Object sender, ClusterNodeLeftEventArgs args) { |
| |
| if (s_logger.isDebugEnabled()) { |
| for (ManagementServerHostVO mshost : args.getLeftNodes()) { |
| s_logger.debug("Handle cluster node left alert, leaving node: " + mshost.getServiceIP() + ", msid: " + mshost.getMsid()); |
| } |
| } |
| |
| for (ManagementServerHostVO mshost : args.getLeftNodes()) { |
| if (mshost.getId() != args.getSelf().longValue()) { |
| if (_mshostDao.increaseAlertCount(mshost.getId()) > 0) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("Detected management server node " + mshost.getServiceIP() + " is down, send alert"); |
| } |
| _alertMgr.sendAlert(AlertManager.AlertType.ALERT_TYPE_MANAGEMENT_NODE, 0, new Long(0), "Management server node " + mshost.getServiceIP() + " is down", |
| ""); |
| } else { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("Detected management server node " + mshost.getServiceIP() + " is down, but alert has already been set"); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean configure(String name, Map<String, Object> params) throws ConfigurationException { |
| |
| if (s_logger.isInfoEnabled()) { |
| s_logger.info("Start configuring cluster alert manager : " + name); |
| } |
| |
| try { |
| SubscriptionMgr.getInstance().subscribe(ClusterManager.ALERT_SUBJECT, this, "onClusterAlert"); |
| } catch (SecurityException e) { |
| throw new ConfigurationException("Unable to register cluster event subscription"); |
| } catch (NoSuchMethodException e) { |
| throw new ConfigurationException("Unable to register cluster event subscription"); |
| } |
| |
| return true; |
| } |
| } |