cacti运维手册
1 前言
1.1 系统功能概述
cacti是通过 snmpget来获取数据,使用 RRDtool绘画图形,而且你完全可以不需要了解RRDtool复杂的参数。它提供了非常强大的数据和用户管理功能,可以指定每一个用户能查看树状结构、host以及任何一张图,还可以与LDAP结合进行用户验证,同时也能自己增加模板,功能非常强大完善。界面友好。软件 Cacti 的发展是基于让 RRDTool 使用者更方便使用该软件,除了基本的 Snmp 流量跟系统资讯监控外,Cacti 也可外挂 Scripts 及加上 Templates 来作出各式各样的监控图。
2 系统架构
2.1 服务器架构图
l 这里是使用nginx+cacti架构,图如下(图1):
图1
l 架构图解析
1 cacti是通过web访问的监控程序,所以需要依赖web服务,这里使用nginx来做web服务。
2 cacti是拿取被监控机的snmp协议端口的信息数据来画图监控。
3 cacti模板和rra 文件存入mysql数据库中。
2.2 cacti架构图
l cacti工作流程架构图如下(图2):
图2
l 架构图解析
通过上图我们可以发现Cacti 有三大组件:MySQL 数据库、RRDtool 工具、Net-Snmp 程序。MySQL并不负责监控数据的存储,只保存模板和rra 文件与主机对应等信息,而真正的监控数据存储和图像展现都是rrdtool 来做的。而Net-SNMP 负责数据的采集。
cacti是用php语言实现的一个软件,它的主要功能是用snmp服务获取数据,然后用rrdtool储存和更新数据,当用户需要查看数据的时候用rrdtool生成图表呈现给用户。因此,snmp和rrdtool是cacti的关键。Snmp关系着数据的收集,rrdtool关系着数据存储和图表的生成。
Mysql配合PHP程序存储一些变量数据并对变量数据进行调用,如:主机名、主机ip、snmp团体名、端口号、模板信息等变量。
snmp抓到数据不是存储在mysql中,而是存在rrdtool生成的rrd文件中(在cacti根目录的rra文件夹下)。rrdtool对数据的更新和存储就是对rrd文件的处理,rrd文件是大小固定的档案文件(Round Robin Archive),它能够存储的数据笔数在创建时就已经定义。
3 安装配置
3.1 安装配置nginx
3.1.1 安装依赖程序
l yum安装部分
yum install -y pcre pcre-devel gd gd-devel GeoIP GeoIP-devel gcc-c++
l 编译安装部分
安装libunwind和google-perftools
# wget http://download.savannah.gnu.org/releases/libunwind/libunwind-0.99-beta.tar.gz
# tar -xzvf libunwind-0.99-beta.tar.gz
# cd libunwind-0.99-beta
# ./configure
# make
# make install
# echo "/usr/local/lib" >> /etc/ld.so.conf
# ldconfig
# wget http://down1.chinaunix.net/distfiles/google-perftools-1.9.tar.gz
# tar -xzvf google-perftools-1.9.tar.gz
# cd google-perftools-1.9
# ./configure
# make
# make install
# ldconfig
3.1.2 创建用户和组
# useradd -g users -s /bin/false -M webuser
# mkdir -p /opt/nginx/temp/client_body_temp
3.1.3 编译安装nginx
# tar -xzvf nginx-1.6.0.tar.gz
# cd nginx-1.6.0
#./configure --prefix=/opt/nginx \
--user=webuser \
--group=users \
--with-poll_module \
--with-http_ssl_module \
--with-http_realip_module \
--with-http_addition_module \
--with-http_geoip_module \
--with-http_flv_module \
--with-http_gzip_static_module \
--with-http_secure_link_module \
--with-http_stub_status_module \
--http-client-body-temp-path=/opt/nginx/temp/client_body_temp \
--http-proxy-temp-path=/opt/nginx/temp/proxy_temp \
--http-fastcgi-temp-path=/opt/nginx/temp/fastcgi_temp \
--http-uwsgi-temp-path=/opt/nginx/temp/uwsgi_temp \
--http-scgi-temp-path=/opt/nginx/temp/scgi_temp \
--with-google_perftools_module
make
makeinstall
3.1.4 配置nginx
l 修改nginx配置文件
vi /opt/nginx/conf/nginx.conf(红色为修改部分 )
user webuser users;
worker_processes 1;
#error_log logs/error.log;
error_log logs/error.log notice;
#error_log logs/error.log info;
pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 80;
server_name 10.0.112.100;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm index.php;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
location ~ \.php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi.conf;
fastcgi_ignore_client_abort on;
}
}
}
3.1.5 启动,关闭,重新加载nginx
l 启动nginx
# /opt/nginx/sbin/nginx
l 关闭停止nginx
# /opt/nginx/sbin/nginx -s stop
l 重新加载nginx配置
# /usr/sbin/nginx -s reload
至此,已经完成了nginx的安装部署。
3.2 安装配置PHP
3.2.1 安装依赖程序
l yum安装部分
yum install libxml2-devel bzip2-devel libcurl-devel freetype-devel libpng-devel mysql-devel
l 编译安装部分
tar zxvf libmcrypt-2.5.7.tar.gz
cd libmcrypt-2.5.7
./configure --prefix=/usr/local/libmcrytp
make
make install
tar zxvf freetds-0.95rc3.tar.gz
cd freetds-0.95rc3
./configure
make
make install
l 库文件软连接
ln -s /usr/lib64/mysql/libmysqlclient.so.16.0.0 /usr/lib/libmysqlclient.so
3.2.2 编译安装php
./configure --prefix=/opt/php5 \
--sysconfdir=/opt/php5/etc \
--enable-soap \
--enable-fpm \
--enable-ftp \
--enable-gd-native-ttf \
--enable-mbstring \
--enable-shmop=shared \
--enable-sockets \
--enable-sysvsem=shared \
--enable-zip \
--disable-ctype \
--disable-ipv6 \
--disable-mbregex \
--disable-mbregex-backtrack \
--disable-posix \
--disable-tokenizer \
--with-bz2=shared \
--with-config-file-path=/opt/php5/etc \
--with-curl \
--with-curlwrappers \
--with-freetype-dir=/usr \
--with-fpm-group=users \
--with-fpm-user=webuser \
--with-gd \
--with-iconv-dir=shared \
--with-ldap-sasl=shared,/usr \
--with-mcrypt=/usr/local/libmcrytp \
--with-mhash=shared \
--with-mssql=shared \
--with-mysql=/usr \
--with-mysqli=/usr/bin/mysql_config \
--with-openssl \
--with-pdo-mysql=shared \
--with-zlib \
--without-cdb \
--without-pdo-sqlite \
--with-png-dir=/usr --without-sqlite3
make
make install
3.2.3 配置php
l 拷贝配置文件
cp /opt/php5/etc/php-fpm.conf.default /opt/php5/etc/php-fpm.conf
cp /usr/local/src/php-5.4.28/php.ini-production /opt/php5/etc/php.ini
l 修改php.ini
# vi /opt/php5/etc/php.ini
在Dynamic Extensions 段下添加以下内容:
extension=eaccelerator.so
extension=memcache.so
extension=mongo.so
extension=redis.so
extension=pdo_dblib.so
extension=pdo_mysql.so
在末尾增加以下关于eaccelerator的配置:
short_open_tag="On"
eaccelerator.cache_dir="/opt/php5/var/tmp/eaccelerator_cache"
eaccelerator.debug="0"
eaccelerator.shm_only="1"
eaccelerator.shm_size="256"
修改以下配置:
default_charset = "UTF-8"
error_log = /opt/php5/var/log/php_errors.log
html_errors = off
upload_max_filesize = 32M
upload_tmp_dir = /opt/php5/var/tmp
date.timezone="Asia/Shanghai"
include_path = ".:/opt/php5/include/php:/opt/php5/lib/php"
short_open_tag = On
l 配置php-fpm服务
# cp ./sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
其中. /sapi/fpm/init.d.php-fpm为存放在源码包中的文件
# chmod 755 /etc/init.d/php-fpm
# chkconfig --add php-fpm
# cp /opt/php5/etc/php-fpm.conf.default /opt/php5/etc/php-fpm.conf
3.2.4 启动,关闭,重新加载php
l 运行php
# service php-fpm start
l 停止php
# service php-fpm stop
l 重新加载php
# service php-fpm restart
3.3 安装配置mysql
3.3.1 yum安装mysql
yum install mysql-server mysql
3.3.2 启动mysql
/etc/ini.d/mysqld start
3.3.3 设置用户密码
mysqladmin -u root -p password "123456"
3.4 安装配置cacti
3.4.1 下载cacti
这里下载的版本是0.8.8c
http://www.cacti.net/downloads/cacti-0.8.8c.tar.gz
http://www.cacti.net/downloads/ (里面可以自己选择相应版本)
3.4.2 安装cacti
l 解压cacti
tar zxvf cacti-0.8.8c.tar.gz
l 拷贝cacti
cp –rf cacti-0.8.8c /opt/nginx/html
3.4.3 数据库设置
l 导入cacti数据库
mysql –uroot –p
mysql> create database cacti
mysql> quit
tar zxvf
mysql –uroot –p cacti < cacti.sql
注:cacti.sql文件位置:/opt/nginx/html/cacti/cacti.sql
l 创建cacti数据库用户
useradd cacti
vi /etc/passwd
cacti:x:501:501::/home/cacti:/sbin/nologin #设置cacti用户不可登陆,增加安全性
mysql –uroot –p
mysql> GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY 'cacti123';
3.4.4 配置修改
vi /opt/nginx/html/cacti/include/config.php
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "127.0.0.1";
$database_username = "cacti";
$database_password = "cacti123";
$database_port = "3306";
$database_ssl = false;
3.4.5 增加crontab
crontab –e
*/5 * * * * /opt/php5/bin/php /opt/nginx/html/cacti/poller.php
3.5 网页安装cacti
注意 :如果出现网页图片为x,nginx错误日志报错为这样类似:FastCGI sent in stderr: "Access to the script '/var/www/html//phpmyadmin/setup/styles.css' has been denied (see security.limit_extensions)"
从5.3.9开始,php官方加入了一个配置"security.limit_extensions",默认状态下只允许执行扩展名为".php"的文件,造成了其他类型的文件不支持的问题。
修改php-fpm.conf,找到security.limit_extensions把他修改为:
security.limit_extensions=.php .html .js .css .jpg .jpeg .gif .png .htm (常用的文件扩展名)
就解决了
l 安装地址:http://IP/cacti/install 并按Next继续,如图(图3):
图3
l 选择New install 并按Next继续,如图(图4):
图4
l 填写正确rrdtool和php程序路径,并按Finish完成安装。如图(图5)
图5
3.6 登陆cacti
l 登陆地址:http://IP/cacti/ 初始用户名:admin 初始密码:admin 如图(图6)
图6
l admin用户初次登陆,会被要求强制修改密码,这里我修改密码为:123456,点击“Save(保存)”。如图(图7):
图7
l 这是登陆cacti界面,如图(图8):
图8
3.7 安装配置cacti-spine
3.7.1 前言
出于效率原因,在大量采集数据时使用自带的cmd.php轮询器会比较慢,1分钟1次的采集频率可能无法完成轮询所有机器。这里为了优化,采用官方推荐的spine来高效轮询。
3.7.2 下载cacti-spine
注:必须和cacti版本一致
http://www.cacti.net/downloads/spine/cacti-spine-0.8.8c.tar.gz
http://www.cacti.net/downloads/spine/(里面可以自己选择相应版本)
3.7.3 编译安装
tar zxvf cacti-spine-0.8.8c.tar.gz
cd cacti-spine-0.8.8c
./configure
make
make install
3.7.4 修改配置
cd /usr/local/spine/etc
cp spine.conf.dist spine.conf
vi spine.conf
DB_Host 127.0.0.1
DB_Database cacti
DB_User cacti
DB_Pass cacti123
DB_Port 3306
DB_PreG 0
3.7.5 配置修改
l 登陆cacti,选择Settings 如图(图9)
图9
l 然后选择poller,并在poller type 里面选择spine 并点击save保存。如图(图10):
图10
3.8 安装配置snmp(被监控机操作)
3.8.1 安装snmp
yum install net-snmp net-snmp-libs net-snmp-utils
3.8.2 配置snmp
vi /etc/snmp/snmpd.conf 修改下内容
com2sec notConfigUser 192.168.0.1 123456
cacti的IP snmp密码
view all included .1 #去掉注释
access notConfigGroup "" any noauth exact all none none #改成all
3.8.3 启动snmp
/etc/init.d/snmpd start
3.9 窗口界面基本操作
3.9.1 增加主机
l 点击devices,再点击add进入添加主机页面,如图(图11)
图11
l 填写主机相应信息,并保存。如图(图12,图13)
图12
图13
l 再次进入主机页面,选择相应图形模板添加并保存。如图(图14)
图14
3.9.2 增加图形
l 点击New Graphs进入增加图形界面,如图(图15)
图15
l 选择需要增加的图形,然后创建,如图(图16)
图16
3.9.3 创建目录树
l 点击Graph Trees进入创建目录树。并点击Add创建。如图(图17)
图17
l 输入名字后,点击创建。如图(图18)
图18
l 然后点击Add添加主机到目录树下,如图(图19)
图19
l 选择host,再选择主机名,并创建,如图(图20)
图20
3.10 查看监控图
直接点击graphs就可以查看监控图,如图(图21)
图21
4 监控IO
4.1 前言
监控硬盘IO这里介绍两种方法,一个是通过snmpdiskio监控IO,还一个是Cacti_Net-SNMP监控IO。推荐使用snmpdiskio,但如果这种监控方法失败或者内核已经超过2.6版本。就使用第二种方法Cacti_Net-SNMP。两种方法效果基本是一样的,看个人喜好选择吧。
4.2 通过snmpdiskio监控IO
4.2.1 解压snmpdiskio
tar zxvf snmpdiskio-0.9.4.tar.gz
4.2.2 拷贝partition.xml(监控机操作)
cp snmpdiskio-0.9.4/partition.xml /opt/nginx/html/cacti/resource/snmp_queries/
4.2.3 修改partition.xml
注意:下面oid要根据实际情况更改,比如如下:
snmpwalk -v 2c -c public 192.168.8.131 .1.3.6.1.4.1.2021.54
UCD-SNMP-MIB::ucdavis.54.1.0 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.54.2.1.2.5.104.100.78.117.109 = STRING: "/bin/bash"
UCD-SNMP-MIB::ucdavis.54.2.1.3.5.104.100.78.117.109 = STRING: "/usr/local/bin/snmpdiskio hdNum"
UCD-SNMP-MIB::ucdavis.54.2.1.4.5.104.100.78.117.109 = ""
UCD-SNMP-MIB::ucdavis.54.2.1.5.5.104.100.78.117.109 = INTEGER: 5
UCD-SNMP-MIB::ucdavis.54.2.1.6.5.104.100.78.117.109 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.54.2.1.7.5.104.100.78.117.109 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.54.2.1.20.5.104.100.78.117.109 = INTEGER: 4
UCD-SNMP-MIB::ucdavis.54.2.1.21.5.104.100.78.117.109 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.54.3.1.1.5.104.100.78.117.109 = STRING: "33"
UCD-SNMP-MIB::ucdavis.54.3.1.2.5.104.100.78.117.109 = STRING: "33"
UCD-SNMP-MIB::ucdavis.54.3.1.3.5.104.100.78.117.109 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.54.3.1.4.5.104.100.78.117.109 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.54.4.1.2.5.104.100.78.117.109.1 = STRING: "33"
OID是.1.3.6.1.4.1.2021.54.4.1.2.5.104.100.78.117.109.1
snmpwalk -v 2c -c public 192.168.8.131 .1.3.6.1.4.1.2021.55
UCD-SNMP-MIB::ucdavis.55.1.0 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.55.2.1.2.7.104.100.73.110.100.101.120 = STRING: "/bin/bash"
UCD-SNMP-MIB::ucdavis.55.2.1.3.7.104.100.73.110.100.101.120 = STRING: "/usr/local/bin/snmpdiskio hdIndex"
UCD-SNMP-MIB::ucdavis.55.2.1.4.7.104.100.73.110.100.101.120 = ""
UCD-SNMP-MIB::ucdavis.55.2.1.5.7.104.100.73.110.100.101.120 = INTEGER: 5
UCD-SNMP-MIB::ucdavis.55.2.1.6.7.104.100.73.110.100.101.120 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.55.2.1.7.7.104.100.73.110.100.101.120 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.55.2.1.20.7.104.100.73.110.100.101.120 = INTEGER: 4
UCD-SNMP-MIB::ucdavis.55.2.1.21.7.104.100.73.110.100.101.120 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.55.3.1.1.7.104.100.73.110.100.101.120 = STRING: "1"
UCD-SNMP-MIB::ucdavis.55.3.1.2.7.104.100.73.110.100.101.120 = STRING: "1
2
3
4
5
6
7
8
9
10
11
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13
14
15
16
17
18
19
20
21
22
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26
27
28
29
30
31
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33"
UCD-SNMP-MIB::ucdavis.55.3.1.3.7.104.100.73.110.100.101.120 = INTEGER: 33
UCD-SNMP-MIB::ucdavis.55.3.1.4.7.104.100.73.110.100.101.120 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.1 = STRING: "1"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.2 = STRING: "2"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.3 = STRING: "3"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.4 = STRING: "4"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.5 = STRING: "5"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.6 = STRING: "6"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.7 = STRING: "7"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.8 = STRING: "8"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.9 = STRING: "9"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.10 = STRING: "10"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.11 = STRING: "11"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.12 = STRING: "12"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.13 = STRING: "13"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.14 = STRING: "14"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.15 = STRING: "15"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.16 = STRING: "16"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.17 = STRING: "17"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.18 = STRING: "18"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.19 = STRING: "19"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.20 = STRING: "20"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.21 = STRING: "21"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.22 = STRING: "22"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.23 = STRING: "23"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.24 = STRING: "24"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.25 = STRING: "25"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.26 = STRING: "26"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.27 = STRING: "27"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.28 = STRING: "28"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.29 = STRING: "29"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.30 = STRING: "30"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.31 = STRING: "31"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.32 = STRING: "32"
UCD-SNMP-MIB::ucdavis.55.4.1.2.7.104.100.73.110.100.101.120.33 = STRING: "33"
OID是.1.3.6.1.4.1.2021.55.4.1.2.7.104.100.73.110.100.101.120
snmpwalk -v 2c -c public 192.168.8.131 .1.3.6.1.4.1.2021.56
UCD-SNMP-MIB::ucdavis.56.1.0 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.56.2.1.2.7.104.100.68.101.115.99.114 = STRING: "/bin/bash"
UCD-SNMP-MIB::ucdavis.56.2.1.3.7.104.100.68.101.115.99.114 = STRING: "/usr/local/bin/snmpdiskio hdDescr"
UCD-SNMP-MIB::ucdavis.56.2.1.4.7.104.100.68.101.115.99.114 = ""
UCD-SNMP-MIB::ucdavis.56.2.1.5.7.104.100.68.101.115.99.114 = INTEGER: 5
UCD-SNMP-MIB::ucdavis.56.2.1.6.7.104.100.68.101.115.99.114 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.56.2.1.7.7.104.100.68.101.115.99.114 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.56.2.1.20.7.104.100.68.101.115.99.114 = INTEGER: 4
UCD-SNMP-MIB::ucdavis.56.2.1.21.7.104.100.68.101.115.99.114 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.56.3.1.1.7.104.100.68.101.115.99.114 = STRING: "ram0"
UCD-SNMP-MIB::ucdavis.56.3.1.2.7.104.100.68.101.115.99.114 = STRING: "ram0
ram1
ram2
ram3
ram4
ram5
ram6
ram7
ram8
ram9
ram10
ram11
ram12
ram13
ram14
ram15
loop0
loop1
loop2
loop3
loop4
loop5
loop6
loop7
sr0
sda
sda1
sda2
sda3
sdb
sdb1
sdb2
dm-0"
UCD-SNMP-MIB::ucdavis.56.3.1.3.7.104.100.68.101.115.99.114 = INTEGER: 33
UCD-SNMP-MIB::ucdavis.56.3.1.4.7.104.100.68.101.115.99.114 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.1 = STRING: "ram0"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.2 = STRING: "ram1"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.3 = STRING: "ram2"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.4 = STRING: "ram3"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.5 = STRING: "ram4"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.6 = STRING: "ram5"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.7 = STRING: "ram6"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.8 = STRING: "ram7"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.9 = STRING: "ram8"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.10 = STRING: "ram9"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.11 = STRING: "ram10"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.12 = STRING: "ram11"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.13 = STRING: "ram12"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.14 = STRING: "ram13"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.15 = STRING: "ram14"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.16 = STRING: "ram15"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.17 = STRING: "loop0"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.18 = STRING: "loop1"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.19 = STRING: "loop2"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.20 = STRING: "loop3"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.21 = STRING: "loop4"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.22 = STRING: "loop5"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.23 = STRING: "loop6"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.24 = STRING: "loop7"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.25 = STRING: "sr0"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.26 = STRING: "sda"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.27 = STRING: "sda1"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.28 = STRING: "sda2"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.29 = STRING: "sda3"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.30 = STRING: "sdb"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.31 = STRING: "sdb1"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.32 = STRING: "sdb2"
UCD-SNMP-MIB::ucdavis.56.4.1.2.7.104.100.68.101.115.99.114.33 = STRING: "dm-0"
OID是.1.3.6.1.4.1.2021.56.4.1.2.7.104.100.68.101.115.99.114
snmpwalk -v 2c -c pubilc 192.168.8.131 .1.3.6.1.4.1.2021.57
UCD-SNMP-MIB::ucdavis.57.1.0 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.57.2.1.2.10.104.100.73.110.66.108.111.99.107.115 = STRING: "/bin/bash"
UCD-SNMP-MIB::ucdavis.57.2.1.3.10.104.100.73.110.66.108.111.99.107.115 = STRING: "/usr/local/bin/snmpdiskio hdInBlocks"
UCD-SNMP-MIB::ucdavis.57.2.1.4.10.104.100.73.110.66.108.111.99.107.115 = ""
UCD-SNMP-MIB::ucdavis.57.2.1.5.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 5
UCD-SNMP-MIB::ucdavis.57.2.1.6.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.57.2.1.7.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.57.2.1.20.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 4
UCD-SNMP-MIB::ucdavis.57.2.1.21.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.57.3.1.1.10.104.100.73.110.66.108.111.99.107.115 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.3.1.2.10.104.100.73.110.66.108.111.99.107.115 = STRING: "0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2807481356288
45056
156467200
2807324844032
855380480
438969344
416407040
416194560"
UCD-SNMP-MIB::ucdavis.57.3.1.3.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 33
UCD-SNMP-MIB::ucdavis.57.3.1.4.10.104.100.73.110.66.108.111.99.107.115 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.1 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.2 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.3 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.4 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.5 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.6 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.7 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.8 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.9 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.10 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.11 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.12 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.13 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.14 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.15 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.16 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.17 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.18 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.19 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.20 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.21 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.22 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.23 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.24 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.25 = STRING: "0"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.26 = STRING: "2807481356288"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.27 = STRING: "45056"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.28 = STRING: "156467200"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.29 = STRING: "2807324844032"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.30 = STRING: "855380480"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.31 = STRING: "438969344"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.32 = STRING: "416407040"
UCD-SNMP-MIB::ucdavis.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115.33 = STRING: "416194560"
OID是.1.3.6.1.4.1.2021.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115
snmpwalk -v 2c -c public 192.168.8.131 .1.3.6.1.4.1.2021.58
UCD-SNMP-MIB::ucdavis.58.1.0 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.58.2.1.2.11.104.100.79.117.116.66.108.111.99.107.115 = STRING: "/bin/bash"
UCD-SNMP-MIB::ucdavis.58.2.1.3.11.104.100.79.117.116.66.108.111.99.107.115 = STRING: "/usr/local/bin/snmpdiskio hdOutBlocks"
UCD-SNMP-MIB::ucdavis.58.2.1.4.11.104.100.79.117.116.66.108.111.99.107.115 = ""
UCD-SNMP-MIB::ucdavis.58.2.1.5.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 5
UCD-SNMP-MIB::ucdavis.58.2.1.6.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.58.2.1.7.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.58.2.1.20.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 4
UCD-SNMP-MIB::ucdavis.58.2.1.21.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.58.3.1.1.11.104.100.79.117.116.66.108.111.99.107.115 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.3.1.2.11.104.100.79.117.116.66.108.111.99.107.115 = STRING: "0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4083470336
2640896
13680640
4066096128
150828032
138458112
12132352
8193024"
UCD-SNMP-MIB::ucdavis.58.3.1.3.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 33
UCD-SNMP-MIB::ucdavis.58.3.1.4.11.104.100.79.117.116.66.108.111.99.107.115 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.1 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.2 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.3 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.4 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.5 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.6 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.7 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.8 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.9 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.10 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.11 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.12 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.13 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.14 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.15 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.16 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.17 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.18 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.19 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.20 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.21 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.22 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.23 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.24 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.25 = STRING: "0"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.26 = STRING: "4083470336"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.27 = STRING: "2640896"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.28 = STRING: "13680640"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.29 = STRING: "4066096128"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.30 = STRING: "150828032"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.31 = STRING: "138458112"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.32 = STRING: "12132352"
UCD-SNMP-MIB::ucdavis.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115.33 = STRING: "8193024"
OID是.1.3.6.1.4.1.2021.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115
Get SNMP Partitions
Queries a host for a list of monitorable partitions
.1.3.6.1.4.1.2021.55.4.1.2.7.104.100.73.110.100.101.120
.1.3.6.1.4.1.2021.54.4.1.2.5.104.100.78.117.109.1
hdDescr:hdIndex
numeric
|chosen_order_field|
Index
walk
value
input
.1.3.6.1.4.1.2021.55.4.1.2.7.104.100.73.110.100.101.120
Description
walk
value
input
.1.3.6.1.4.1.2021.56.4.1.2.7.104.100.68.101.115.99.114
Bytes Written
walk
value
output
.1.3.6.1.4.1.2021.57.4.1.2.10.104.100.73.110.66.108.111.99.107.115
Bytes Read
walk
value
output
.1.3.6.1.4.1.2021.58.4.1.2.11.104.100.79.117.116.66.108.111.99.107.115
4.2.4 升级snmpdiskio
由于9.4太老不支持2.6内核,需要修改升级
vi snmpdiskio-0.9.4/snmpdiskio 将下面内容覆盖到这文件
[table][tr][td]#!/bin/bash
# $Id: snmpdiskio,v 1.5 2008/01/31 21:19:50 dverlaeckt Exp $
# snmpdiskio v0.9.6 (c) 2008 Dieter Verlaeckt
# snmpdiskio v0.9.5 (c) 2007 Pablo Destefanis
# snmpdiskio v0.9.4 (c) 2006 Mikael Fridh
# Fields in /proc/partitions (kernel 2.4)
# major minor #blocks name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq
# Fields in /proc/diskstats (kernel 2.6) for disks (i.e. hda)
# major minor name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq
# Fields in /proc/diskstats (kernel 2.6) for partitions (i.e. hda1)
# major minor name rio rsect wio wsect
# InBlocks = sectors written to disk
# OutBlocks = sectors read from disk
# Set default procfile for kernel 2.4
PROCFILE="/proc/partitions"
MODE="linux24"
# Probably kernel 2.6:
if [ -f /proc/diskstats ]; then
PROCFILE=/proc/diskstats
MODE="linux26"
fi
function hdNum()
{
awk ' BEGIN { num=0 } $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ { num++ } END { print num } ' $PROCFILE
}
function hdIndex()
{
awk ' BEGIN { num=0 } $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ { num++; print num } ' $PROCFILE
}
function hdDescr()
{
if [ "$MODE" = "linux26" ]; then
awk ' $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ { printf "%s\n", $3 }' $PROCFILE
else
awk ' $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ { printf "%s\n", $4 }' $PROCFILE
fi
}
function hdInBlocks()
{
if [ "$MODE" = "linux26" ]; then
awk ' $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ && NF == 7 { printf "%.0f\n", $7 * 512 }
$1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ && NF == 14 { printf "%.0f\n", $10 * 512 } ' $PROCFILE
else
awk ' $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ && NF == 15 { printf "%.0f\n", $11 * 512 } ' $PROCFILE
fi
}
function hdOutBlocks()
{
if [ "$MODE" = "linux26" ]; then
awk ' $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ && NF == 7 { printf "%.0f\n", $5 * 512 }
$1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ && NF == 14 { printf "%.0f\n", $6 * 512 } ' $PROCFILE
else
awk ' $1 ~ /[0-9]+/ && $2 ~ /[0-9]+/ && NF == 15 { printf "%.0f\n", $7 * 512 } ' $PROCFILE
fi
}
function usage()
{
cat > ${TMPFILE}
echo "old_user[${a}]=${user[${a}]}" >> ${TMPFILE}
echo "old_nice[${a}]=${nice[${a}]}" >> ${TMPFILE}
echo "old_iowait[${a}]=${iowait[${a}]}" >> ${TMPFILE}
echo "old_irq[${a}]=${irq[${a}]}" >> ${TMPFILE}
echo "old_softirq[${a}]=${softirq[${a}]}" >> ${TMPFILE}
echo "old_idle[${a}]=${idle[${a}]}" >> ${TMPFILE}
echo "old_used[${a}]=${used[${a}]}" >> ${TMPFILE}
echo "old_total[${a}]=${total[${a}]}" >> ${TMPFILE}
done
}
read_tmpfile() {
if [ -e ${TMPFILE} ]; then
source ${TMPFILE} # include the vars from the tmp file
fi
(( DEBUG )) && cat ${TMPFILE}
}
########################
# MAIN
########################
parse_options $@
read_tmpfile
procstat=$(cat /proc/stat 2>&1)
(( DEBUG )) && echo "$procstat"
cpucount=$(( $(grep -i cpu
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