Flink on yarn 加载失败plugins失效问题解决
Flink on yarn 加载失败plugins失效问题解决
flink版本：1.13.6
1. 问题
flink 任务运行在yarn集群,plugins加载失效,导致通过扩展资源获取任务参数失效
2. 问题定位
-
yarn容器的jar包及插件信息,jar包是正常上传
-
源码定位
加载plugins入口，TaskManagerRunner.class
PluginUtils.createPluginManagerFromRootFolder
源码加载扩展资源参数入口TaskManagerRunner.class
ExternalResourceUtils.createStaticExternalResourceInfoProviderFromConfig
日志信息
定位PluginConfig源码
3. 方案
重写覆盖集群的PluginConfig.java,优先从configurtaion获取
/** 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.flink.core.plugin;import com.alibaba.fastjson.JSON;
import org.apache.commons.lang3.StringUtils;
import org.apache.flink.configuration.*;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.io.File;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.Objects;
import java.util.Optional;/** Stores the configuration for plugins mechanism. */
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
public class PluginConfig {private static final Logger LOG = LoggerFactory.getLogger(PluginConfig.class);private static final String PUPU_FLINK_PLUGINS_DIR = "flink_plugins_dir";private final Optional<Path> pluginsPath;private final String[] alwaysParentFirstPatterns;private PluginConfig(Optional<Path> pluginsPath, String[] alwaysParentFirstPatterns) {pluginsPath.ifPresent(path -> LOG.info("pluginsPath: {}", path));LOG.info("alwaysParentFirstPatterns: {}", Arrays.stream(alwaysParentFirstPatterns).toArray());this.pluginsPath = pluginsPath;this.alwaysParentFirstPatterns = alwaysParentFirstPatterns;}public Optional<Path> getPluginsPath() {return pluginsPath;}public String[] getAlwaysParentFirstPatterns() {return alwaysParentFirstPatterns;}public static PluginConfig fromConfiguration(Configuration configuration) {return new PluginConfig(getPluginsDir(configuration).map(File::toPath),CoreOptions.getPluginParentFirstLoaderPatterns(configuration));}public static Optional<File> getPluginsDir(Configuration configuration) {String pluginsDir = configuration.get(ConfigOptions.key(PUPU_FLINK_PLUGINS_DIR).stringType().defaultValue(null));if (StringUtils.isBlank(pluginsDir)) {pluginsDir =System.getenv().getOrDefault(ConfigConstants.ENV_FLINK_PLUGINS_DIR,ConfigConstants.DEFAULT_FLINK_PLUGINS_DIRS);}File pluginsDirFile = new File(pluginsDir);if (!pluginsDirFile.isDirectory()) {LOG.warn("The plugins directory [{}] does not exist.", pluginsDirFile);return Optional.empty();}return Optional.of(pluginsDirFile);}}