Cacti Web安装过程错误分析

 未分类  No Responses »
10 月 292014
 

安装cacti过程中，由于未导入数据库，而直接在浏览器中请求cacti页面导致的错误日志

[Wed Oct 29 23:15:26 2014] [error] [client 113.118.48.124] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in /usr/local/cacti/lib/adodb/adodb.inc.php on line 833
[Wed Oct 29 23:15:34 2014] [error] [client 113.118.48.124] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in /usr/local/cacti/lib/adodb/adodb.inc.php on line 833
[Wed Oct 29 23:16:49 2014] [error] [client 113.118.48.124] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in /usr/local/cacti/lib/adodb/adodb.inc.php on line 833
[Wed Oct 29 23:17:01 2014] [error] [client 113.118.48.124] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in /usr/local/cacti/lib/adodb/adodb.inc.php on line 833

执行以下操作后再次访问cacti安装页面

mysql -u root -ppasswd cacti < /usr/local/cacti/cacti.sql

使用check_multipath.pl检测多路径状态

 未分类  No Responses »
10 月 292014
 

检测多路径数量状态
[root@rtmp01 libexec]# ./check_multipath.pl -m 1 -o 2
OK
LUN mpathc: 2/2.
[root@rtmp01 libexec]#

执行multipath需root权限

修改NRPE配置文件
# command_prefix=/usr/bin/sudo
command_prefix=/usr/bin/sudo

修改sudoer配置文件
#Defaults    requiretty

nagios  ALL=(ALL)       NOPASSWD: ALL

保持nagios用户为可登录状态
/etc/passwd
/bin/bash

错误分析一
[root@monitor libexec]# ./check_nrpe -H 192.168.155.114 -c check_multipath

ERROR: Command failed, ‘sudo’ not configured for command: ‘/sbin/multipath -l’? |Host: rtmp01|
[root@monitor libexec]#

错误分析二
[root@monitor libexec]# ./check_nrpe -H 192.168.155.114 -c check_multipath
NRPE: Unable to read output
[root@monitor libexec]# ./check_nrpe -H 192.168.155.114 -c check_multipath
OK<br/>LUN mpathc: 2/2.<br/>
[root@monitor libexec]#

定义命令
command[check_multipath]=/usr/local/nagios/libexec/check_multipath.pl -m 1 -o 2

定义服务
define service{
use                             generic-service
host_name                       rtmp01
service_description             Multipath Status
check_command                   check_nrpe!check_multipath
}

Linux下查看CPU物理逻辑及核心数量

 未分类  No Responses »
10 月 292014
 

Intel(R) Xeon(R) CPU E5-2603 v2 @ 1.80GHz

物理处理器数量
[harveymei@monitor ~]$ cat /proc/cpuinfo |grep “physical id”|sort |uniq|wc -l
1
逻辑处理器数量（包括多核和多线程）
[harveymei@monitor ~]$ cat /proc/cpuinfo |grep “processor”|wc -l
4
物理核心数量
[harveymei@monitor ~]$ cat /proc/cpuinfo |grep “cores”|uniq
cpu cores       : 4
[harveymei@monitor ~]$