![](https://csdnimg.cn/release/download_crawler_static/86370870/bg3.jpg)
内存和虚拟内存检查
1.内存最小 1G,推荐 2G 或者更高。
查看
[root]# grep MemTotal /proc/meminfo
2.Swap 交互空间(虚拟内存)
查看
[root]# grep SwapTotal /proc/meminfo
[root]# free
如果虚拟内存不够,可以使用如下命令增加
[root]#dd if=/dev/zero of=/root/swap bs=1024 count=3072000
[root]#chmod 600 /root/swap
[root]#mkswap /root/swap
[root]#swapon /root/swap
使用 yum 安装依赖包
[root@192 ~]# yum install -y binutils compat-libcap1 compat-libstdc++-33 compat-
libstdc++-33.i686 gcc gcc-c++ glibc.i686 glibc glibc-devel.i686 glibc-deve ksh libaio.i686
libaio libaio-devel.i686 libaio-devel libgcc.i686 libgcc libstdc++.i686 libstdc++ libstdc++-
devel.i686 libstdc++-devel.x86_64 libXi.i686 libXi libXtst.i686 libXtst make sysstat elfutils-libelf
elfutils-libelf-devel unixODBC unixODBC.i686 unixODBC-devel unixODBC-devel.i686 glibc-
static
内核参数修改
[root]# vi /etc/sysctl.conf
加入以下语句
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500