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ProcessUtils.java
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ProcessUtils.java
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/*
* 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.dolphinscheduler.service.utils;
import org.apache.dolphinscheduler.common.constants.Constants;
import org.apache.dolphinscheduler.common.utils.FileUtils;
import org.apache.dolphinscheduler.plugin.task.api.TaskConstants;
import org.apache.dolphinscheduler.plugin.task.api.TaskExecutionContext;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import java.nio.file.Paths;
import java.util.Collections;
import java.util.List;
import javax.annotation.Nullable;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
/**
* mainly used to get the start command line of a process.
*/
@Slf4j
public class ProcessUtils {
/**
* find logs and kill yarn tasks.
*
* @param taskExecutionContext taskExecutionContext
* @return yarn application ids
*/
public static @Nullable List<String> killApplication(@NonNull List<String> appIds,
@NonNull TaskExecutionContext taskExecutionContext) {
try {
Thread.sleep(Constants.SLEEP_TIME_MILLIS);
if (CollectionUtils.isNotEmpty(appIds)) {
taskExecutionContext.setAppIds(String.join(TaskConstants.COMMA, appIds));
if (StringUtils.isEmpty(taskExecutionContext.getExecutePath())) {
taskExecutionContext
.setExecutePath(FileUtils.getTaskInstanceWorkingDirectory(
taskExecutionContext.getTenantCode(),
taskExecutionContext.getProjectCode(),
taskExecutionContext.getProcessDefineCode(),
taskExecutionContext.getProcessDefineVersion(),
taskExecutionContext.getProcessInstanceId(),
taskExecutionContext.getTaskInstanceId()));
}
FileUtils.createDirectoryWith755(Paths.get(taskExecutionContext.getExecutePath()));
org.apache.dolphinscheduler.plugin.task.api.utils.ProcessUtils.cancelApplication(taskExecutionContext);
return appIds;
} else {
log.info("The current appId is empty, don't need to kill the yarn job, taskInstanceId: {}",
taskExecutionContext.getTaskInstanceId());
}
} catch (Exception e) {
log.error("Kill yarn job failure, taskInstanceId: {}", taskExecutionContext.getTaskInstanceId(), e);
}
return Collections.emptyList();
}
}