mac修改进程能打开的最大文件数

最新推荐文章于 2025-07-04 16:50:21 发布

原创最新推荐文章于 2025-07-04 16:50:21 发布 · 4.8k 阅读

0 ·

CC 4.0 BY-SA版权

Go 专栏收录该内容

16 篇文章

订阅专栏

本文介绍了解决Mac系统中进程最大文件数限制过小导致的服务端错误问题。通过调整ulimit-n参数，可以显著提高并发连接数，避免因文件描述符不足而引发的too many open files错误。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

mac进程能打开的最大文件数,默认只有256
$ulimit -n
256

这会导致go的服务端运行的时候，如果同时连接的客户端太多，会报错：

2015/08/31 11:47:57 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 10ms
2015/08/31 11:47:58 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 20ms
2015/08/31 11:47:58 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 40ms
2015/08/31 11:47:58 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 80ms
2015/08/31 11:47:58 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 160ms
2015/08/31 11:47:58 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 320ms
2015/08/31 11:47:58 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 640ms
2015/08/31 11:47:59 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 1s
2015/08/31 11:48:00 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 1s
2015/08/31 11:48:01 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 1s
2015/08/31 11:48:02 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 1s
2015/08/31 11:48:03 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 1s
2015/08/31 11:48:04 http: Accept error: accept tcp [::]:12621: too many open files; retrying in 1s

解决办法：

mac修改进程能打开的最大文件数：
1.
$su 切换到root账户
#launchctl limit maxfiles 99999 99999

#ulimit -n 99999

#exit

2.确认修改生效

$ulimit -n

99999

3.每个窗口的服务都必须在重设ulimit -n之后，重启才生效!

4.举例

cd $GOPATH/src/car_server/bentchmark

go run main.go 2>2.log &

tail -f 2.log