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为什么 sudo 需要很长时间才能执行

tag-icon • tag-icon linux sudo redhat-enterprise-linux
为什么 sudo 需要很长时间才能执行

当使用 sudo 运行命令时，即使像 这样的简单命令也总是需要大约 4 或 5 秒才能运行echo test。

我正在运行 rhel 9。

在查看了其他一些问题后，我运行了sudo strace -t -f sudo echo。执行此操作时，我得到了以下信息，我猜测这是问题所在，但不确定是什么原因造成的。

[pid 318837] 17:15:24 close(11)         = 0
[pid 318837] 17:15:24 prlimit64(0, RLIMIT_NOFILE, NULL, {rlim_cur=512*1024, rlim_max=512*1024}) = 0
[pid 318837] 17:15:24 close(65535)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65534)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65533)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65532)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65531)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65530)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65529)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65528)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65527)      = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:24 close(65526)      = -1 EBADF (Bad file descriptor)


# this continues counting down by 1 each time


[pid 318837] 17:15:26 close(14)         = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:26 close(13)         = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:26 close(12)         = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:26 close(11)         = -1 EBADF (Bad file descriptor)
[pid 318837] 17:15:26 close(10)         = 0
[pid 318837] 17:15:26 close(9)          = 0
[pid 318837] 17:15:26 close(8)          = 0
[pid 318837] 17:15:26 close(7)          = 0
[pid 318837] 17:15:26 close(6)          = 0
[pid 318837] 17:15:26 close(5)          = 0
[pid 318837] 17:15:26 close(4)          = 0
[pid 318837] 17:15:26 close(3)          = 0
[pid 318837] 17:15:26 geteuid()         = 0
[pid 318837] 17:15:26 setuid(0)         = 0

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