hadoop FSConfigToCSConfigConverterMain 源码
haddop FSConfigToCSConfigConverterMain 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/converter/FSConfigToCSConfigConverterMain.java
/*
* 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.resourcemanager.scheduler.fair.converter;
import java.util.function.Consumer;
import org.apache.hadoop.classification.VisibleForTesting;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
/**
* Main class that invokes the FS->CS converter.
*
*/
public final class FSConfigToCSConfigConverterMain {
private FSConfigToCSConfigConverterMain() {
// no instances
}
private static final Logger LOG =
LoggerFactory.getLogger(FSConfigToCSConfigConverterMain.class);
private static final Marker FATAL =
MarkerFactory.getMarker("FATAL");
private static Consumer<Integer> exitFunction = System::exit;
public static void main(String[] args) {
try {
FSConfigToCSConfigArgumentHandler fsConfigConversionArgumentHandler =
new FSConfigToCSConfigArgumentHandler();
int exitCode =
fsConfigConversionArgumentHandler.parseAndConvert(args);
if (exitCode != 0) {
LOG.error(FATAL,
"Error while starting FS configuration conversion, " +
"see previous error messages for details!");
}
exitFunction.accept(exitCode);
} catch (Throwable t) {
LOG.error(FATAL,
"Error while starting FS configuration conversion!", t);
exitFunction.accept(-1);
}
}
@VisibleForTesting
static void setExit(Consumer<Integer> exitFunc) {
exitFunction = exitFunc;
}
}
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