Ubuntu 18.04 修改 ulimit
1，报错too many open files
- 设置
ulimit open files默认为1024
# 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) 514927
max locked memory (kbytes, -l) 16384
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 514927
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
2，修改open files
vim /etc/security/limits.conf添加
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
root soft nproc 65535
root hard nproc 65535
root soft nofile 65535
root hard nofile 65535
bro soft nproc 65535
bro hard nproc 65535
bro soft nofile 65535
bro hard nofile 65535
vim /etc/pam.d/common-session添加
session required pam_limits.so
vim /etc/pam.d/common-session-noninteractive添加
session required pam_limits.so
vim /etc/systemd/system.conf修改
DefaultLimitNOFILE=65535
- 重启
- 修改成功
open files 65535
# 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) 514927
max locked memory (kbytes, -l) 16384
max memory size (kbytes, -m) unlimited
open files (-n) 65535
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 65535
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
3，通过设置环境变量修改
vim /etc/profile增加
ulimit -n 65535
# ulimit -n
65535
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