| /** * 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.server.nodemanager.webapp; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.Map.Entry; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.QueryParam; |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.core.Response.Status; |
| import javax.ws.rs.core.StreamingOutput; |
| import javax.ws.rs.core.UriInfo; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Public; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.hadoop.yarn.api.records.ContainerId; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.factories.RecordFactory; |
| import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider; |
| import org.apache.hadoop.yarn.server.nodemanager.Context; |
| import org.apache.hadoop.yarn.server.nodemanager.ResourceView; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationState; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container; |
| import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppInfo; |
| import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppsInfo; |
| import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainerInfo; |
| import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainersInfo; |
| import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.NodeInfo; |
| import org.apache.hadoop.yarn.util.ConverterUtils; |
| import org.apache.hadoop.yarn.webapp.BadRequestException; |
| import org.apache.hadoop.yarn.webapp.NotFoundException; |
| import org.apache.hadoop.yarn.webapp.WebApp; |
| import org.apache.hadoop.yarn.webapp.util.WebAppUtils; |
| |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| @Singleton |
| @Path("/ws/v1/node") |
| public class NMWebServices { |
| private Context nmContext; |
| private ResourceView rview; |
| private WebApp webapp; |
| private static RecordFactory recordFactory = RecordFactoryProvider |
| .getRecordFactory(null); |
| |
| private @javax.ws.rs.core.Context |
| HttpServletRequest request; |
| |
| private @javax.ws.rs.core.Context |
| HttpServletResponse response; |
| |
| @javax.ws.rs.core.Context |
| UriInfo uriInfo; |
| |
| @Inject |
| public NMWebServices(final Context nm, final ResourceView view, |
| final WebApp webapp) { |
| this.nmContext = nm; |
| this.rview = view; |
| this.webapp = webapp; |
| } |
| |
| private void init() { |
| //clear content type |
| response.setContentType(null); |
| } |
| |
| @GET |
| @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) |
| public NodeInfo get() { |
| return getNodeInfo(); |
| } |
| |
| @GET |
| @Path("/info") |
| @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) |
| public NodeInfo getNodeInfo() { |
| init(); |
| return new NodeInfo(this.nmContext, this.rview); |
| } |
| |
| @GET |
| @Path("/apps") |
| @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) |
| public AppsInfo getNodeApps(@QueryParam("state") String stateQuery, |
| @QueryParam("user") String userQuery) { |
| init(); |
| AppsInfo allApps = new AppsInfo(); |
| for (Entry<ApplicationId, Application> entry : this.nmContext |
| .getApplications().entrySet()) { |
| |
| AppInfo appInfo = new AppInfo(entry.getValue()); |
| if (stateQuery != null && !stateQuery.isEmpty()) { |
| ApplicationState.valueOf(stateQuery); |
| if (!appInfo.getState().equalsIgnoreCase(stateQuery)) { |
| continue; |
| } |
| } |
| if (userQuery != null) { |
| if (userQuery.isEmpty()) { |
| String msg = "Error: You must specify a non-empty string for the user"; |
| throw new BadRequestException(msg); |
| } |
| if (!appInfo.getUser().equals(userQuery)) { |
| continue; |
| } |
| } |
| allApps.add(appInfo); |
| } |
| return allApps; |
| } |
| |
| @GET |
| @Path("/apps/{appid}") |
| @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) |
| public AppInfo getNodeApp(@PathParam("appid") String appId) { |
| init(); |
| ApplicationId id = WebAppUtils.parseApplicationId(recordFactory, appId); |
| Application app = this.nmContext.getApplications().get(id); |
| if (app == null) { |
| throw new NotFoundException("app with id " + appId + " not found"); |
| } |
| return new AppInfo(app); |
| |
| } |
| |
| @GET |
| @Path("/containers") |
| @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) |
| public ContainersInfo getNodeContainers(@javax.ws.rs.core.Context |
| HttpServletRequest hsr) { |
| init(); |
| ContainersInfo allContainers = new ContainersInfo(); |
| for (Entry<ContainerId, Container> entry : this.nmContext.getContainers() |
| .entrySet()) { |
| if (entry.getValue() == null) { |
| // just skip it |
| continue; |
| } |
| ContainerInfo info = new ContainerInfo(this.nmContext, entry.getValue(), |
| uriInfo.getBaseUri().toString(), webapp.name(), hsr.getRemoteUser()); |
| allContainers.add(info); |
| } |
| return allContainers; |
| } |
| |
| @GET |
| @Path("/containers/{containerid}") |
| @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) |
| public ContainerInfo getNodeContainer(@javax.ws.rs.core.Context |
| HttpServletRequest hsr, @PathParam("containerid") String id) { |
| ContainerId containerId = null; |
| init(); |
| try { |
| containerId = ConverterUtils.toContainerId(id); |
| } catch (Exception e) { |
| throw new BadRequestException("invalid container id, " + id); |
| } |
| |
| Container container = nmContext.getContainers().get(containerId); |
| if (container == null) { |
| throw new NotFoundException("container with id, " + id + ", not found"); |
| } |
| return new ContainerInfo(this.nmContext, container, uriInfo.getBaseUri() |
| .toString(), webapp.name(), hsr.getRemoteUser()); |
| |
| } |
| |
| /** |
| * Returns the contents of a container's log file in plain text. |
| * |
| * Only works for containers that are still in the NodeManager's memory, so |
| * logs are no longer available after the corresponding application is no |
| * longer running. |
| * |
| * @param containerIdStr |
| * The container ID |
| * @param filename |
| * The name of the log file |
| * @return |
| * The contents of the container's log file |
| */ |
| @GET |
| @Path("/containerlogs/{containerid}/{filename}") |
| @Produces({ MediaType.TEXT_PLAIN }) |
| @Public |
| @Unstable |
| public Response getLogs(@PathParam("containerid") String containerIdStr, |
| @PathParam("filename") String filename) { |
| ContainerId containerId; |
| try { |
| containerId = ConverterUtils.toContainerId(containerIdStr); |
| } catch (IllegalArgumentException ex) { |
| return Response.status(Status.BAD_REQUEST).build(); |
| } |
| |
| File logFile = null; |
| try { |
| logFile = ContainerLogsUtils.getContainerLogFile( |
| containerId, filename, request.getRemoteUser(), nmContext); |
| } catch (NotFoundException ex) { |
| return Response.status(Status.NOT_FOUND).entity(ex.getMessage()).build(); |
| } catch (YarnException ex) { |
| return Response.serverError().entity(ex.getMessage()).build(); |
| } |
| |
| try { |
| final FileInputStream fis = ContainerLogsUtils.openLogFileForRead( |
| containerIdStr, logFile, nmContext); |
| |
| StreamingOutput stream = new StreamingOutput() { |
| @Override |
| public void write(OutputStream os) throws IOException, |
| WebApplicationException { |
| int bufferSize = 65536; |
| byte[] buf = new byte[bufferSize]; |
| int len; |
| while ((len = fis.read(buf, 0, bufferSize)) > 0) { |
| os.write(buf, 0, len); |
| } |
| os.flush(); |
| } |
| }; |
| |
| return Response.ok(stream).build(); |
| } catch (IOException ex) { |
| return Response.serverError().entity(ex.getMessage()).build(); |
| } |
| } |
| } |