修改oracle用户资源限制,RHEL5中安装Oracle11gR2修改用户SHELL限制、环境配置、内核参数...

修改用户的SHELL的限制[root@localhost ～]# vi /etc/security/limits.conf

# /etc/security/limits.conf

#Each line describes a limit for a user in the form:

#Where:

# can be:

# - an user name

# - a group name, with @group syntax

# - the wildcard *, for default entry

# - the wildcard %, can be also used with %group syntax,

# for maxlogin limit

# can have the two values:

# - "soft" for enforcing the soft limits

# - "hard" for enforcing hard limits

# can be one of the following:

# - core - limits the core file size (KB)

# - data - max data size (KB)

# - fsize - maximum filesize (KB)

# - memlock - max locked-in-memory address space (KB)

# - nofile - max number of open files

# - rss - max resident set size (KB)

# - stack - max stack size (KB)

# - cpu - max CPU time (MIN)

# - nproc - max number of processes

# - as - address space limit

# - maxlogins - max number of logins for this user

# - maxsyslogins - max number of logins on the system

# - priority - the priority to run user process with

# - locks - max number of file locks the user can hold

# - sigpending - max number of pending signals

# - msgqueue - max memory used by POSIX message queues (bytes)

# - nice - max nice priority allowed to raise to

# - rtprio - max realtime priority

#* soft core 0

#* hard rss 10000

#@student hard nproc 20

#@faculty soft nproc 20

#@faculty hard nproc 50

#ftp hard nproc 0

#@student - maxlogins 4

# End of file

oracle soft nproc 2047

oracle hard nproc 16384

oracle soft nofile 1024

oracle hard nofile 65536

修改过程：按i键进入insert状态，编辑完成后esc退出，然后按：输入wq保存并退出。

同样的如下进行操作：

编辑login文件：[root@localhost ~]# vi /etc/pam.d/login

session required /lib/security/pam_limits.so

修改profile文件：[root@localhost ~]# vi /etc/profile

if[$user="oracle"];then

if[$user="/bin/ksh"];then

ulimit -p 16384

ulimit -n 65535

else

ulimit -u 16384 -n 65535

修改内核参数

[root@localhost ~]# vi /etc/sysctl.conf

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 536870912

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

net.ipv4.tcp_wmem = 262144 262144 262144

net.ipv4.tcp_rmem = 4194304 4194304 4194304

net.ipv4.ip_local_port_range = 9000 65500

fs.aio-max-nr = 1048576

fs.file-max = 6815744

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048586

可以是内核参数马上生效：[root@localhost /]# /sbin/sysctl -p

查看内核参数的值：[root@localhost ~]# /sbin/sysctl -a |grep kernel.shmmax

kernel.shmmax = 536870912

修改用户的环境配置

以oracle身份登录：

[root@localhost ~]# cd /

[root@localhost /]# su - oracle

[oracle@localhost ~]$

此时变成了美元$哦。

查看当前目录是否在操作系统用户oracle的主目录：

[oracle@localhost ~]$ pwd

/home/oracle

找到环境配置文件.bash.profile：

[oracle@localhost ~]$ ls -a

. .bash_history .bash_profile .emacs .viminfo

.. .bash_logout .bashrc .mozilla

修改环境配置文件：[oracle@localhost ~]$ vi .bash_profile

export ORACLE_bASE=/myoracle/app //设置oracle根目录

export ORACLE_HOME=/myoracle/app/product/11.2.0/db_1//设置oracle主目录

export ORACLE_SID=dbalala//实例名

export umask=022

export PATH=$PATH:$ORACLE_HOME/bin//命令的搜索路径

可以查看环境变量：[oracle@localhost ~]$ env

HOSTNAME=localhost.localdomain

SHELL=/bin/bash

TERM=xterm

HISTSIZE=1000

USER=oracle

LS_COLORS=no=00:fi=00:di=00;34:ln=00;36:pi=40;33:so=00;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=00;32:*.cmd=00;32:*.exe=00;32:*.com=00;32:*.btm=00;32:*.bat=00;32:*.sh=00;32:*.csh=00;32:*.tar=00;31:*.tgz=00;31:*.arj=00;31:*.taz=00;31:*.lzh=00;31:*.zip=00;31:*.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:*.bz=00;31:*.tz=00;31:*.rpm=00;31:*.cpio=00;31:*.jpg=00;35:*.gif=00;35:*.bmp=00;35:*.xbm=00;35:*.xpm=00;35:*.png=00;35:*.tif=00;35:

MAIL=/var/spool/mail/oracle

PATH=/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/oracle/bin

INPUTRC=/etc/inputrc

PWD=/home/oracle

LANG=zh_CN.UTF-8

SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass

SHLVL=1

HOME=/home/oracle

LOGNAME=oracle

CVS_RSH=ssh

LESSOPEN=|/usr/bin/lesspipe.sh %s

DISPLAY=:0.0