spark IOMode 源码
spark IOMode 代码
文件路径：/common/network-common/src/main/java/org/apache/spark/network/util/IOMode.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.spark.network.util;
/**
* Selector for which form of low-level IO we should use.
* NIO is always available, while EPOLL is only available on Linux.
* AUTO is used to select EPOLL if it's available, or NIO otherwise.
*/
public enum IOMode {
NIO, EPOLL
}
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