The user limit for number of open files is too small.

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允许打开的文件数目过小问题,解决:

#查看当前系统允许打开文件数目
cat /proc/sys/fs/file-max
#查看用户可以打开的文件数目
# Check Hard Limit in Linux
ulimit -Hn
# Check Soft Limits in Linux
ulimit -Sn

#修改系统
sysctl -w fs.file-max=500000 # 临时生效;
vi /etc/sysctl.conf # 永久生效
cat /proc/sys/fs/file-max 验证
sysctl -p # 修改立即生效;

# 修改用户限制
vi /etc/security/limits.conf

参考链接:

https://www.tecmint.com/increase-set-open-file-limits-in-linux/

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