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Merge pull request #355 from Esjob-Cloud-DevOps/elastic-job-scheduler…
…/322 Fixed #322, Account for the resources of app while launching task
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.../src/main/java/com/dangdang/ddframe/job/cloud/scheduler/mesos/AppConstraintEvaluator.java
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| /* | ||
| * Copyright 1999-2015 dangdang.com. | ||
| * <p> | ||
| * Licensed 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. | ||
| * </p> | ||
| */ | ||
|
|
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| package com.dangdang.ddframe.job.cloud.scheduler.mesos; | ||
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| import com.dangdang.ddframe.job.cloud.scheduler.config.app.CloudAppConfiguration; | ||
| import com.dangdang.ddframe.job.cloud.scheduler.config.job.CloudJobConfiguration; | ||
| import com.dangdang.ddframe.job.context.TaskContext; | ||
| import com.google.common.base.Optional; | ||
| import com.google.common.base.Preconditions; | ||
| import com.netflix.fenzo.ConstraintEvaluator; | ||
| import com.netflix.fenzo.TaskAssignmentResult; | ||
| import com.netflix.fenzo.TaskRequest; | ||
| import com.netflix.fenzo.TaskTrackerState; | ||
| import com.netflix.fenzo.VirtualMachineCurrentState; | ||
| import com.sun.jersey.api.client.ClientHandlerException; | ||
| import com.sun.jersey.api.client.UniformInterfaceException; | ||
| import lombok.AccessLevel; | ||
| import lombok.RequiredArgsConstructor; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.codehaus.jettison.json.JSONException; | ||
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|
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| import java.util.ArrayList; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
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| /** | ||
| * App目标slave适配度限制器. | ||
| * 选择slave时需要考虑其上是否运行有App的executor,如果没有运行executor需要将其资源消耗考虑进适配计算算法中. | ||
| * | ||
| * @author gaohongtao | ||
| */ | ||
| @Slf4j | ||
| @RequiredArgsConstructor(access = AccessLevel.PRIVATE) | ||
| public class AppConstraintEvaluator implements ConstraintEvaluator { | ||
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| private static AppConstraintEvaluator instance; | ||
|
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| private final Set<String> runningApps = new HashSet<>(); | ||
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| private final FacadeService facadeService; | ||
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| public static void init(final FacadeService facadeService) { | ||
| instance = new AppConstraintEvaluator(facadeService); | ||
| } | ||
|
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| static AppConstraintEvaluator getInstance() { | ||
| Preconditions.checkNotNull(instance); | ||
| return instance; | ||
| } | ||
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| void loadAppRunningState() { | ||
| try { | ||
| for (MesosStateService.ExecutorStateInfo each : facadeService.loadExecutorInfo()) { | ||
| runningApps.add(each.getId()); | ||
| } | ||
| } catch (final JSONException | UniformInterfaceException | ClientHandlerException e) { | ||
| clearAppRunningState(); | ||
| } | ||
| } | ||
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| void clearAppRunningState() { | ||
| runningApps.clear(); | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
| return "App-Fitness-Calculator"; | ||
| } | ||
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| @Override | ||
| public Result evaluate(final TaskRequest taskRequest, final VirtualMachineCurrentState targetVM, final TaskTrackerState taskTrackerState) { | ||
| double assigningCpus = 0.0d; | ||
| double assigningMemoryMB = 0.0d; | ||
| final String slaveId = targetVM.getAllCurrentOffers().iterator().next().getSlaveId().getValue(); | ||
| try { | ||
| if (isAppRunningOnSlave(taskRequest.getId(), slaveId)) { | ||
| return new Result(true, ""); | ||
| } | ||
| Set<String> calculatedApps = new HashSet<>(); | ||
| List<TaskRequest> taskRequests = new ArrayList<>(targetVM.getTasksCurrentlyAssigned().size() + 1); | ||
| taskRequests.add(taskRequest); | ||
| for (TaskAssignmentResult each : targetVM.getTasksCurrentlyAssigned()) { | ||
| taskRequests.add(each.getRequest()); | ||
| } | ||
| for (TaskRequest each : taskRequests) { | ||
| assigningCpus += each.getCPUs(); | ||
| assigningMemoryMB += each.getMemory(); | ||
| if (isAppRunningOnSlave(each.getId(), slaveId)) { | ||
| continue; | ||
| } | ||
| CloudAppConfiguration assigningAppConfig = getAppConfiguration(each.getId()); | ||
| if (!calculatedApps.add(assigningAppConfig.getAppName())) { | ||
| continue; | ||
| } | ||
| assigningCpus += assigningAppConfig.getCpuCount(); | ||
| assigningMemoryMB += assigningAppConfig.getMemoryMB(); | ||
| } | ||
| } catch (final LackConfigException e) { | ||
| log.warn("Lack config, disable {}", getName(), e); | ||
| return new Result(true, ""); | ||
| } | ||
| if (assigningCpus > targetVM.getCurrAvailableResources().cpuCores()) { | ||
| log.debug("Failure {} {} cpus:{}/{}", taskRequest.getId(), slaveId, assigningCpus, targetVM.getCurrAvailableResources().cpuCores()); | ||
| return new Result(false, String.format("cpu:%s/%s", assigningCpus, targetVM.getCurrAvailableResources().cpuCores())); | ||
| } | ||
| if (assigningMemoryMB > targetVM.getCurrAvailableResources().memoryMB()) { | ||
| log.debug("Failure {} {} mem:{}/{}", taskRequest.getId(), slaveId, assigningMemoryMB, targetVM.getCurrAvailableResources().memoryMB()); | ||
| return new Result(false, String.format("mem:%s/%s", assigningMemoryMB, targetVM.getCurrAvailableResources().memoryMB())); | ||
| } | ||
| log.debug("Success {} {} cpus:{}/{} mem:{}/{}", taskRequest.getId(), slaveId, assigningCpus, targetVM.getCurrAvailableResources() | ||
| .cpuCores(), assigningMemoryMB, targetVM.getCurrAvailableResources().memoryMB()); | ||
| return new Result(true, String.format("cpus:%s/%s mem:%s/%s", assigningCpus, targetVM.getCurrAvailableResources() | ||
| .cpuCores(), assigningMemoryMB, targetVM.getCurrAvailableResources().memoryMB())); | ||
| } | ||
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| private boolean isAppRunningOnSlave(final String taskId, final String slaveId) throws LackConfigException { | ||
| TaskContext taskContext = TaskContext.from(taskId); | ||
| taskContext.setSlaveId(slaveId); | ||
| return runningApps.contains(taskContext.getExecutorId(getJobConfiguration(taskContext).getAppName())); | ||
| } | ||
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| private CloudAppConfiguration getAppConfiguration(final String taskId) throws LackConfigException { | ||
| CloudJobConfiguration jobConfig = getJobConfiguration(TaskContext.from(taskId)); | ||
| Optional<CloudAppConfiguration> appConfigOptional = facadeService.loadAppConfig(jobConfig.getAppName()); | ||
| if (!appConfigOptional.isPresent()) { | ||
| throw new LackConfigException("APP", jobConfig.getAppName()); | ||
| } | ||
| return appConfigOptional.get(); | ||
| } | ||
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| private CloudJobConfiguration getJobConfiguration(final TaskContext taskContext) throws LackConfigException { | ||
| Optional<CloudJobConfiguration> jobConfigOptional = facadeService.load(taskContext.getMetaInfo().getJobName()); | ||
| if (!jobConfigOptional.isPresent()) { | ||
| throw new LackConfigException("JOB", taskContext.getMetaInfo().getJobName()); | ||
| } | ||
| return jobConfigOptional.get(); | ||
| } | ||
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| private class LackConfigException extends Exception { | ||
| LackConfigException(final String scope, final String configName) { | ||
| super(String.format("Lack %s's config %s", scope, configName)); | ||
| } | ||
| } | ||
| } |
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