| /** |
| * 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.hadoop.yarn.api.records; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Public; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| |
| /** |
| * <p>State of a <code>Node</code>.</p> |
| */ |
| @Public |
| @Unstable |
| public enum NodeState { |
| /** New node */ |
| NEW, |
| |
| /** Running node */ |
| RUNNING, |
| |
| /** Node is unhealthy */ |
| UNHEALTHY, |
| |
| /** Node is out of service */ |
| DECOMMISSIONED, |
| |
| /** Node has not sent a heartbeat for some configured time threshold*/ |
| LOST, |
| |
| /** Node has rebooted */ |
| REBOOTED, |
| |
| /** Node decommission is in progress */ |
| DECOMMISSIONING, |
| |
| /** Node has shutdown gracefully. */ |
| SHUTDOWN; |
| |
| public boolean isUnusable() { |
| return (this == UNHEALTHY || this == DECOMMISSIONED |
| || this == LOST || this == SHUTDOWN); |
| } |
| |
| public boolean isInactiveState() { |
| return this == NodeState.DECOMMISSIONED || |
| this == NodeState.LOST || this == NodeState.REBOOTED || |
| this == NodeState.SHUTDOWN; |
| } |
| |
| public boolean isActiveState() { |
| return this == NodeState.NEW || |
| this == NodeState.RUNNING || this == NodeState.UNHEALTHY || |
| this == NodeState.DECOMMISSIONING; |
| } |
| } |