su: /bin/bash: Too many open files in system
root下设置完/etc/sysctl.conf,键入#su - oracle，显示
su: /bin/bash: Too many open files in system
不得已，查看原因，cat /home/oracle/.bash_profile:
kernel.sem=1055 32000 100 128
kernel.shmmax=2147483648
fs.file-max = 512 * PROCESSES --数值太小
kernel.shmall = 2097152
net.ipv4.tcp_sack = 0
net.ipv4.tcp_timestamps = 0
net.ipv4.conf.default.rp_filter = 0
net.core.optmem_max = 65535
net.core.rmem_default = 4194304
net.core.wmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 262144
net.ipv4.ip_local_port_range = 1024 65000
***************************************
原来是它在搞鬼，擦，修改如下
fs.file-max = 6553600 --这个数值可以随意，我习惯这个数字，总之超过512就行，不行你再改，呵呵
保存退出，再次执行：
sysctl -p
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