linux中nagios pnp4nagios 图形监控 mysql
下文为各位介绍一个linux中nagios pnp4nagios 图形监控 mysql的教程希望这篇文章可以帮助到各位哦,nagios图形界面还是比较麻烦的,下面以mysql为例来说一下,监控mysql的插件比较多,在这里了解方法,而不是死搬硬套.
一,安装pnp4nagios
[root@localhost objects]# yum install pnp4nagios rrdtool
如果找不到包换epel源,博客里面有搜一下,关于nagios的安装,请参考:nagios 安装配置,详解.
二,配置nagios
1,修改nagios.cfg
- [root@localhostobjects]#vim/etc/nagios/nagios.cfg//修改以下内容
- process_performance_data=1//由0改为1
- host_perfdata_command=process-host-perfdata//前面的注释拿掉
- service_perfdata_command=process-service-perfdata//注释拿掉
- enable_environment_macros=1//如果有注释拿掉
2,修改commands.cfg
注释掉原有对process-host-perfdata和process-service-perfdata,重新定义
- [root@localhostobjects]#vim/etc/nagios/objects/commands.cfg
- definecommand{
- command_nameprocess-service-perfdata
- command_line/usr/bin/perl/usr/libexec/pnp4nagios/process_perfdata.pl
- }
- definecommand{
- command_nameprocess-host-perfdata
- command_line/usr/bin/perl/usr/libexec/pnp4nagios/process_perfdata.pl-dHOSTPERFDATA
- }
3、修改配置文件templates.cfg,添加以下内容:
- [root@localhostobjects]#vim/etc/nagios/objects/templates.cfg
- definehost{
- namehosts-pnp
- register0
- action_url/pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_
- process_perf_data1
- }
- defineservice{
- namesrv-pnp
- register0
- action_url/pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$
- process_perf_data1
- }
4,修改服务器配置文件localhost.cfg
- [root@localhostobjects]#vim/etc/nagios/objects/localhost.cfg
- definehost{
- uselinux-server,hosts-pnp
- host_namelocalhost
- aliaslocalhost
- address127.0.0.1
- }//phpfensi.com
- defineservice{
- uselocal-service,srv-pnp
- host_namelocalhost
- service_descriptionPING
- check_commandcheck_ping!100.0,20%!500.0,60%
- }
上面只是例举了一个,你可以都加一下.
三,pnp4nagios配置
在网上好多关于pnp4nagios的文章,都是要把mv misccommands.cfg-sample misccommands.cfg 生成配置文件,我是yum安装的,安装目录下根本没有sample这样的东西.
- [root@localhostobjects]#tree/etc/pnp4nagios/
- /etc/pnp4nagios/
- ├──background.pdf
- ├──check_commands
- │├──check_all_local_disks.cfg
- │├──check_nrpe.cfg
- │└──check_nwstat.cfg
- ├──config.php
- ├──misccommands.cfg
- ├──nagios.cfg
- ├──npcd.cfg
- ├──pages
- │└──web_traffic.cfg
- ├──pnp4nagios_release
- ├──process_perfdata.cfg
- └──rra.cfg
所在我根本没有配置任何东西.
四,重启nagios,启动npcd
- [root@localhostpnp4nagios]#/etc/init.d/npcdstart
- [root@localhostpnp4nagios]#/etc/init.d/nagiosrestart
五,nginx配置
配置nginx的时候,配置挺头痛的,nagios的根目录是有php的,pnp4nagios是放在nagios的根目录下面,pnp4nagios也是php的,配置不好容易错乱的.
- server
- {
- listen80;
- server_namenagios.xxxx.com;
- indexindex.php;
- root/usr/share/nagios/html;
- location~.*\.(php|php5)?${//nagios根目录的php
- fastcgi_pass127.0.0.1:9000;
- fastcgi_indexindex.php;
- includefastcgi.conf;
- }
- location~.*\.(gif|jpg|jpeg|png|bmp|swf)${//nagios的图片重写
- rewrite^/nagios/images/(.*)/images/$1break;
- rewrite^/pnp4nagios/index.php/(.*)/pnp4nagios/$1break;
- expires30d;
- }
- location~.*\.(js|css)?${//nagios的js,css重写
- rewrite^/nagios/stylesheets/(.*)/stylesheets/$1break;
- rewrite^/nagios/js/(.*)/js/$1break;
- rewrite^/pnp4nagios/index.php/(.*)/pnp4nagios/$1break;
- expires1h;
- }
- location~.*\.cgi${//nagios的主程序是perl的,perl的cgi重写
- root/usr/lib64/nagios/cgi-bin;
- rewrite^/nagios/cgi-bin/(.*)\.cgi/$1.cgibreak;
- fastcgi_pass127.0.0.1:9001;
- fastcgi_indexindex.cgi;
- includefastcgi.conf;
- }
- location~^(/pnp4nagios.*\.php)(.*)${//pnp4nagios的php重写
- rewrite^/pnp4nagios/index.php/index.php/(.*)$/pnp4nagios/index.php/$1;break;
- fastcgi_pass127.0.0.1:9000;
- fastcgi_indexindex.php;
- includefastcgi.conf;
- }
- }
在这里有一个问题就是http://nagios.xxxx.com/pnp4nagios/index.php/index.php/graph?host=localhost&srv=PING在这里有二个index.php,这个是php的程序加上去的,我并没有改,同一个页面有二种链接.
由nagios的监控页面,跳转到pnp4nagios监控页面的连接是
http://nagios.xxxx.com/pnp4nagios/index.php/graph?host=localhost&srv=PING
点php4nagios监控页面中的连接然后就会多加一个index.php,http://nagios.xxxx.com/pnp4nagios/index.php/index.php/graph?host=localhost&srv=PING
这也是上面我为什么要加这一句rewrite ^/pnp4nagios/index.php/index.php/(.*)$ /pnp4nagios/index.php/$1;break;的原因.
二,安装perl mysql扩展
# yum install perl-Class-DBI-mysql
三,check_mysqld.php和check_mysqld.pl
1,下载
- http://exchange.nagios.org/components/com_mtree/attachment.php?link_id=174&cf_id=30
- http://exchange.nagios.org/components/com_mtree/attachment.php?link_id=174&cf_id=36
2,修改check_mysqld.php和check_mysqld.pl,本机是64位,根本没有/usr/lib/nagios,所以要把文件中的lib改成lib64.
3,copy和修改文件权限
- #cpcheck_mysqld.pl/usr/lib64/nagios/plugins
- #chmod755/usr/lib64/nagios/plugins/check_mysqld.pl
- #chgrpnagios/usr/lib64/nagios/plugins/check_mysqld.pl
- #cpcheck_mysqld.php/usr/share/nagios/html/pnp4nagios/templates.dist
四,nagios配置
1,修改command.cfg
- #vim/etc/nagios/objects/commands.cfg
- definecommand{
- command_namecheck_mysqld
- command_line$USER1$/check_mysqld.pl-H$HOSTADDRESS$-unagios-p$USER7$-auptime,threads_connected,questions,slow_queries,open_tables-w',,,,'-c',,,,'-A$USER21$
- }
2,修改resource.cfg
- #vim/etc/nagios/objects/resource.cfg
- $USER7$=nagios
- $USER21$='com_select,com_update,com_insert,com_insert_select,
- com_commit,com_delete,com_rollback,aborted_clients,
- aborted_connects,binlog_cache_disk_use,binlog_cache_use,
- bytes_received,bytes_sent,connections,created_tmp_disk_tables,
- created_tmp_files,created_tmp_tables,delayed_errors,
- delayed_insert_threads,delayed_writes,handler_update,handler_write,
- handler_delete,handler_read_first,handler_read_key,
- handler_read_next,handler_read_prev,handler_read_rnd,
- handler_read_rnd_next,key_blocks_not_flushed,
- key_blocks_unused,key_blocks_used,key_read_requests,key_reads,
- key_write_requests,key_writes,max_used_connections,
- not_flushed_delayed_rows,open_files,open_streams,open_tables,
- opened_tables,prepared_stmt_count,qcache_free_blocks,
- qcache_free_memory,qcache_hits,qcache_inserts,
- qcache_lowmem_prunes,qcache_not_cached,
- qcache_queries_in_cache,qcache_total_blocks,questions,
- select_full_join,select_rangle_check,slow_launch_threads,
- slow_queries,table_locks_immediate,table_locks_waited,
- threads_cached,threads_connected,threads_created,
- threads_running'
在这里要注意,$USER21$后面的内容要在一行.
3,修改localhost.cfg
- #vim/etc/nagios/objects/localhost.cfg
- defineservice{
- uselocal-service,srv-pnp//srv-pnp换成你自定义的
- host_namelocalhost
- service_descriptionMYSQLD
- check_commandcheck_mysqld!localhost!nagios!nagios
- }
- 4,pnp4nagios中增加check_mysqld.cfg
- #vim/etc/pnp4nagios/check_commands/check_mysqld.cfg
- DATATYPE=COUNTER
五,重启nagios
- #/etc/init.d/npcdrestart
- #/etc/init.d/nrperestart
- #/etc/init.d/nagiosrestart
热门评论