【mmdet 3.2.0 评测中文件描述符数量递增】

[linuxscofield]

多机多卡评测，进程的文件描述符递增，提示 Too Many Open Files

traceback
Traceback (most recent call last): File "/usr/local/lib/python3.8/multiprocessing/resource_sharer.py", line 149, in _serve send(conn, destination_pid) File "/usr/local/lib/python3.8/multiprocessing/resource_sharer.py", line 50, in send File "/usr/local/lib/python3.8/multiprocessing/reduction.py", line 183, in send_handle File "/usr/local/lib/python3.8/socket.py", line 543, in fromfd OSError: [Errno 24] Too many open files

观察到只要 metric class 成员变量压入数据，文件描述符就一直增加，这个有办法避免吗？