问题详情：
/arrow/cpp/src/arrow/filesystem/hdfs.cc:51: Failed to disconnect hdfs client: IOError: HDFS hdfsFS::Disconnect failed, errno: 9 (Bad file descriptor)
Traceback (most recent call last):
File "/home/tdops/fucheng.pan/ray-code/read.py", line 15, in
print(fs.FileSystem.from_uri("hdfs:"))
File "pyarrow/_fs.pyx", line 347, in pyarrow._fs.FileSystem.from_uri
File "pyarrow/error.pxi", line 122, in pyarrow.lib.pyarrow_internal_check_status
File "pyarrow/error.pxi", line 99, in pyarrow.lib.check_status
OSError: HDFS connection faileddask及相关库的版本如下：
pyarrow 15.0.2
dask 2024.4.0
dask-expr 1.0.6
fsspec 2024.3.1解决办法：
先将 fsspec 降至 2022.8.2 版本，如果再不行，将pyarrow降至 7.0.0 解决
相关解决原文：https://github.com/apache/arrow/issues/29187
标签：hdfs,pyarrow,dask,connect,File,error,line From： https://blog.csdn.net/qq_35204012/article/details/137346310