环境为centosV7系列 1.查看进程的打开最大文件数,默认为1024 [root@localhost ~]# ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 7168 max locked memory (kbytes, -l)