/**
* 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.ambari.server.state;
public enum HostState {
/**
* New host state
*/
INIT,
/**
* State when a registration request is received from the Host but
* the host has not responded to its status update check.
*/
WAITING_FOR_HOST_STATUS_UPDATES,
/**
* State when the server is receiving heartbeats regularly from the Host
* and the state of the Host is healthy
*/
HEALTHY,
/**
* State when the server has not received a heartbeat from the Host in the
* configured heartbeat expiry window.
*/
HEARTBEAT_LOST,
/**
* Host is in unhealthy state as reported either by the Host itself or via
* any other additional means ( monitoring layer )
*/
UNHEALTHY;
}