| /** |
| * 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.Private; |
| import org.apache.hadoop.classification.InterfaceAudience.Public; |
| import org.apache.hadoop.classification.InterfaceStability.Evolving; |
| import org.apache.hadoop.classification.InterfaceStability.Stable; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.yarn.util.Records; |
| |
| import java.util.List; |
| |
| /** |
| * {@code ContainerStatus} represents the current status of a |
| * {@code Container}. |
| * <p> |
| * It provides details such as: |
| * <ul> |
| * <li>{@code ContainerId} of the container.</li> |
| * <li>{@code ExecutionType} of the container.</li> |
| * <li>{@code ContainerState} of the container.</li> |
| * <li><em>Exit status</em> of a completed container.</li> |
| * <li><em>Diagnostic</em> message for a failed container.</li> |
| * <li>{@link Resource} allocated to the container.</li> |
| * </ul> |
| */ |
| @Public |
| @Stable |
| public abstract class ContainerStatus { |
| |
| @Private |
| @Unstable |
| public static ContainerStatus newInstance(ContainerId containerId, |
| ContainerState containerState, String diagnostics, int exitStatus) { |
| return newInstance(containerId, ExecutionType.GUARANTEED, containerState, |
| diagnostics, exitStatus); |
| } |
| |
| @Private |
| @Unstable |
| public static ContainerStatus newInstance(ContainerId containerId, |
| ExecutionType executionType, ContainerState containerState, |
| String diagnostics, int exitStatus) { |
| ContainerStatus containerStatus = Records.newRecord(ContainerStatus.class); |
| containerStatus.setExecutionType(executionType); |
| containerStatus.setState(containerState); |
| containerStatus.setContainerId(containerId); |
| containerStatus.setDiagnostics(diagnostics); |
| containerStatus.setExitStatus(exitStatus); |
| return containerStatus; |
| } |
| |
| /** |
| * Get the <code>ContainerId</code> of the container. |
| * @return <code>ContainerId</code> of the container |
| */ |
| @Public |
| @Stable |
| public abstract ContainerId getContainerId(); |
| |
| @Private |
| @Unstable |
| public abstract void setContainerId(ContainerId containerId); |
| |
| /** |
| * Get the <code>ExecutionType</code> of the container. |
| * @return <code>ExecutionType</code> of the container |
| */ |
| @Public |
| @Evolving |
| public ExecutionType getExecutionType() { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| @Private |
| @Unstable |
| public void setExecutionType(ExecutionType executionType) { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| /** |
| * Get the <code>ContainerState</code> of the container. |
| * @return <code>ContainerState</code> of the container |
| */ |
| @Public |
| @Stable |
| public abstract ContainerState getState(); |
| |
| @Private |
| @Unstable |
| public abstract void setState(ContainerState state); |
| |
| /** |
| * <p>Get the <em>exit status</em> for the container.</p> |
| * |
| * <p>Note: This is valid only for completed containers i.e. containers |
| * with state {@link ContainerState#COMPLETE}. |
| * Otherwise, it returns an ContainerExitStatus.INVALID. |
| * </p> |
| * |
| * <p>Containers killed by the framework, either due to being released by |
| * the application or being 'lost' due to node failures etc. have a special |
| * exit code of ContainerExitStatus.ABORTED.</p> |
| * |
| * <p>When threshold number of the nodemanager-local-directories or |
| * threshold number of the nodemanager-log-directories become bad, then |
| * container is not launched and is exited with ContainersExitStatus.DISKS_FAILED. |
| * </p> |
| * |
| * @return <em>exit status</em> for the container |
| */ |
| @Public |
| @Unstable |
| public abstract int getExitStatus(); |
| |
| @Private |
| @Unstable |
| public abstract void setExitStatus(int exitStatus); |
| |
| /** |
| * Get <em>diagnostic messages</em> for failed containers. |
| * @return <em>diagnostic messages</em> for failed containers |
| */ |
| @Public |
| @Stable |
| public abstract String getDiagnostics(); |
| |
| @Private |
| @Unstable |
| public abstract void setDiagnostics(String diagnostics); |
| |
| /** |
| * Get the <code>Resource</code> allocated to the container. |
| * @return <code>Resource</code> allocated to the container |
| */ |
| @Public |
| @Unstable |
| public Resource getCapability() { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| @Private |
| @Unstable |
| public void setCapability(Resource capability) { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| /** |
| * Get all the IP addresses with which the container run. |
| * @return The IP address where the container runs. |
| */ |
| @Public |
| @Unstable |
| public List<String> getIPs() { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| @Private |
| @Unstable |
| public void setIPs(List<String> ips) { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| /** |
| * Get the hostname where the container runs. |
| * @return The hostname where the container runs. |
| */ |
| @Public |
| @Unstable |
| public String getHost() { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| @Private |
| @Unstable |
| public void setHost(String host) { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| /** |
| * Add Extra state information of the container (SCHEDULED, LOCALIZING etc.). |
| * @param subState Extra State Information. |
| */ |
| @Private |
| @Unstable |
| public void setContainerSubState(ContainerSubState subState) { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| |
| /** |
| * Get Extra state information of the container (SCHEDULED, LOCALIZING etc.). |
| * @return Extra State information. |
| */ |
| @Private |
| @Unstable |
| public ContainerSubState getContainerSubState() { |
| throw new UnsupportedOperationException( |
| "subclass must implement this method"); |
| } |
| } |