Connected to an idle instance.
ORA-27102: out of memory
Linux-x86_64 Error: 28: No space left on device
Disconnected
经过一番查找,发现是一个参数的设置的不对/etc/sysctl.conf的shmall
shmall这个参数设置的值太小就会报ORA-27102: out of memory
对于32位系统,一页=4k,也就是4096字节。
kernel.shmall = 2097152 就是 2097152*4k/1024/1024 = 8G 就是说可用共享内存一共 8G
设置的一般规律
kernel.shmall = 2097152 ---内存8G
kernel.shmall = 4194304 ---内存16G
kernel.shmall = 8388608 ---内存32G
我改的kernel.shmall = 41943040 ,结果好了,这样可以会留下什么后遗症
修改好内核以后,执行下面的命令使新的配置生效。
[root @linux1 /root]# /sbin/sysctl -p
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