如何使用C++在HDFS上写拼图文件？

#include <iostream>
#include <fstream>
#include <hdfs/hdfs.h>

int main() {
    // 连接HDFS
    hdfsFS fs = hdfsConnect("hdfs://<namenode>:<port>");

    // 打开本地文件
    std::ifstream inputFile("input.jpg", std::ios::binary);

    // 创建HDFS文件
    hdfsFile outputFile = hdfsOpenFile(fs, "/user/input.jpg", O_WRONLY | O_CREAT, 0, 0, 0);

    // 逐块写入HDFS文件
    const int bufferSize = 1024;
    char buffer[bufferSize];
    while (!inputFile.eof()) {
        inputFile.read(buffer, bufferSize);
        tSize bytesWritten = hdfsWrite(fs, outputFile, buffer, inputFile.gcount());
        if (bytesWritten == -1) {
            std::cerr << "Failed to write to HDFS" << std::endl;
            return 1;
        }
    }

    // 关闭文件和HDFS连接
    hdfsCloseFile(fs, outputFile);
    hdfsDisconnect(fs);

    return 0;
}

g++ -o write_hdfs write_hdfs.cpp -lhdfs

./write_hdfs