[FLINK-38897][Runtime/REST] Introduce the /jobs/:jobid/rescales/config endpoint in the REST API #27580
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| @@ -0,0 +1,109 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.runtime.rest.handler.job.rescales; | ||
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| import org.apache.flink.runtime.rest.handler.HandlerRequest; | ||
| import org.apache.flink.runtime.rest.handler.RestHandlerException; | ||
| import org.apache.flink.runtime.rest.handler.job.AbstractExecutionGraphHandler; | ||
| import org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache; | ||
| import org.apache.flink.runtime.rest.messages.EmptyRequestBody; | ||
| import org.apache.flink.runtime.rest.messages.ErrorResponseBody; | ||
| import org.apache.flink.runtime.rest.messages.JobIDPathParameter; | ||
| import org.apache.flink.runtime.rest.messages.JobMessageParameters; | ||
| import org.apache.flink.runtime.rest.messages.MessageHeaders; | ||
| import org.apache.flink.runtime.rest.messages.ResponseBody; | ||
| import org.apache.flink.runtime.rest.messages.job.rescales.JobRescaleConfigHeaders; | ||
| import org.apache.flink.runtime.rest.messages.job.rescales.JobRescaleConfigInfo; | ||
| import org.apache.flink.runtime.scheduler.ExecutionGraphInfo; | ||
| import org.apache.flink.runtime.webmonitor.RestfulGateway; | ||
| import org.apache.flink.runtime.webmonitor.history.ArchivedJson; | ||
| import org.apache.flink.runtime.webmonitor.history.JsonArchivist; | ||
| import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever; | ||
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|
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| import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpResponseStatus; | ||
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|
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| import java.io.IOException; | ||
| import java.time.Duration; | ||
| import java.util.Collection; | ||
| import java.util.Collections; | ||
| import java.util.Map; | ||
| import java.util.concurrent.Executor; | ||
|
|
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| /** The handler for job rescale configuration. */ | ||
| public class JobRescaleConfigHandler | ||
| extends AbstractExecutionGraphHandler<JobRescaleConfigInfo, JobMessageParameters> | ||
| implements JsonArchivist { | ||
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|
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| public JobRescaleConfigHandler( | ||
| GatewayRetriever<? extends RestfulGateway> leaderRetriever, | ||
| Duration timeout, | ||
| Map<String, String> responseHeaders, | ||
| MessageHeaders<EmptyRequestBody, JobRescaleConfigInfo, JobMessageParameters> | ||
| messageHeaders, | ||
| ExecutionGraphCache executionGraphCache, | ||
| Executor executor) { | ||
| super( | ||
| leaderRetriever, | ||
| timeout, | ||
| responseHeaders, | ||
| messageHeaders, | ||
| executionGraphCache, | ||
| executor); | ||
| } | ||
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| @Override | ||
| protected JobRescaleConfigInfo handleRequest( | ||
| HandlerRequest<EmptyRequestBody> request, ExecutionGraphInfo executionGraphInfo) | ||
| throws RestHandlerException { | ||
| return getJobRescaleConfigInfo(executionGraphInfo); | ||
| } | ||
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| private JobRescaleConfigInfo getJobRescaleConfigInfo(ExecutionGraphInfo executionGraphInfo) | ||
| throws RestHandlerException { | ||
| if (executionGraphInfo.getJobRescaleConfigInfo() == null) { | ||
| throw new RestHandlerException( | ||
| "AdaptiveScheduler is not enabled for this job (" | ||
| + executionGraphInfo.getJobId() | ||
| + ").", | ||
| HttpResponseStatus.NOT_FOUND, | ||
| RestHandlerException.LoggingBehavior.IGNORE); | ||
| } | ||
| return executionGraphInfo.getJobRescaleConfigInfo(); | ||
|
Contributor
There was a problem hiding this comment. If executionGraphInfo.getJobRescaleConfigInfo() returns null, throw exception will be a better choice. |
||
| } | ||
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| @Override | ||
| public Collection<ArchivedJson> archiveJsonWithPath(ExecutionGraphInfo executionGraphInfo) | ||
| throws IOException { | ||
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| ResponseBody response; | ||
| try { | ||
| response = getJobRescaleConfigInfo(executionGraphInfo); | ||
| } catch (RestHandlerException rhe) { | ||
| response = new ErrorResponseBody(rhe.getMessage()); | ||
| } | ||
| return Collections.singletonList( | ||
| new ArchivedJson( | ||
| JobRescaleConfigHeaders.getInstance() | ||
| .getTargetRestEndpointURL() | ||
| .replace( | ||
| ':' + JobIDPathParameter.KEY, | ||
| executionGraphInfo.getJobId().toString()), | ||
| response)); | ||
| } | ||
| } | ||
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