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Linux 出现 too many open files 的处理办法
source link: https://www.bugcatt.com/archives/2682
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今天在使用Hexo generate时出现了oo many open files这个问题, 在此记录下过程以及解决方案.
CentOS
使用此命令获取当前系统打开文件数量:
lsof | wc -l使用此命令获取打开文件数量上限:
ulimit -a会返回类似:
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) 7268
max locked memory (kbytes, -l) 64
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) 7268
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited其中, open files的值就为上限. 上方的例子为 1024.
方案一: 优化你的服务
最优方案其实是使你的服务妥善处理文件. 如果无法优化, 请参考方案二.
方案二: 提高 open files 数量上限
使用该命令临时修改, 立即生效, 重启后失效:
ulimit -n 2048你可以按需调整数量, 比如 ulimit -n 65535
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