hadoop压缩程序在执行时卡住了
我在hadoop中执行压缩程序时遇到了一个问题。我正在尝试的代码如下所示:hadoop压缩程序在执行时卡住了,hadoop,mapreduce,compression,Hadoop,Mapreduce,Compression,我在hadoop中执行压缩程序时遇到了一个问题。我正在尝试的代码如下所示: public class StreamCompressor { public static void main(String[] args) throws Exception { String codecClassname = args[0]; Class<?> codecClass = Class.forName(codecClassname); Configuration co
public class StreamCompressor {
public static void main(String[] args) throws Exception {
String codecClassname = args[0];
Class<?> codecClass = Class.forName(codecClassname);
Configuration conf = new Configuration();
CompressionCodec codec = (CompressionCodec);
ReflectionUtils.newInstance(codecClass, conf);
CompressionOutputStream out = codec.createOutputStream(System.out);
IOUtils.copyBytes(System.in, out, 4096, false);
out.finish();
}
}
公共类StreamCompressor{
公共静态void main(字符串[]args)引发异常{
字符串codecClassname=args[0];
Class codecClass=Class.forName(codecClassname);
Configuration conf=新配置();
压缩编解码器编解码器=(压缩编解码器);
newInstance(codecClass,conf);
CompressionOutputStream out=codec.createOutputStream(System.out);
IOUtils.copyBytes(System.in,out,4096,false);
out.finish();
}
}
执行此代码时,它不会运行;它只显示一个闪烁的光标。这是一本书
它在发出运行命令后卡住了