服务器监控工具 Munin

穆宁Munin是一个用 Perl 编写的资源监控工具。 使用 RRDtool 创建图表。版本信息稳定版本为2.0.34于2017年10月21日发布可在EPEL仓库中获取。最新的评估版本是2.99.3于2017年1月21日发布。在 CentOS 上2.0.33 可以从 EPEL 仓库安装。由来穆宁发音为“Munin”指的是伴随北欧神祇奥丁的一对渡鸦的“记忆”。 两只鸟在黎明时分被派到外面收集情报夜间回来悄悄向奥丁传达消息。1 作为一个资源监控工具这个名字相当巧妙。所以标志图案其实是一只乌鸦。Munin node client安装yum install epel-release yum install munin-nodeEPEL 仓库提供的软件包将是最新的稳定版本 2.0.25。插件坚振礼munin-node-configure --suggest输出示例Plugin | Used | Suggestions ------ | ---- | ----------- acpi | no | no [cannot read [] amavis | no | no apache_accesses | no | no [apache server-status not found. check if mod_status is enabled] apache_processes | no | no [apache server-status not found. check if mod_status is enabled] apache_volume | no | no [apache server-status not found. check if mod_status is enabled] apc_envunit_ | no | no [no units to monitor] bonding_err_ | no | no [No /proc/net/bonding] courier_mta_mailqueue | no | no [spooldir not found] courier_mta_mailstats | no | no [could not find executable] courier_mta_mailvolume | no | no [could not find executable] cps_ | no | no cpu | yes | yes cpuspeed | no | no [missing /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state] cupsys_pages | no | no [could not find logdir] df | yes | yes df_inode | yes | yes diskstats | yes | yes entropy | yes | yes exim_mailqueue | no | no [no exiqgrep] exim_mailstats | no | no [/usr/sbin/exim -bP log_file_path returned an error] fail2ban | no | no [/usr/bin/fail2ban-client not found] forks | yes | yes fw_conntrack | no | no fw_forwarded_local | no | no fw_packets | yes | yes hddtemp_smartctl | no | no http_loadtime | no | no if_ | yes | yes (enp0s3 enp0s8) if_err_ | yes | yes (enp0s3 enp0s8) interrupts | yes | yes ip_ | no | no [could not run iptables as user nobody] ipmi_ | no | no [missing ipmitool command] irqstats | yes | yes load | yes | yes lpstat | no | no [lpstat not found] memory | yes | yes munin_stats | no | yes mysql_ | no | no netstat | no | no [netstat program not found] nfs4_client | no | no [no /proc/net/rpc/nfs] nfs_client | no | no nfsd | no | no [no /proc/net/rpc/nfsd] nfsd4 | no | no [no /proc/net/rpc/nfsd] nginx_request | no | no [no nginx status on http://localhost/nginx_status] nginx_status | no | no [no nginx status on http://localhost/nginx_status] ntp_kernel_err | no | no ntp_kernel_pll_freq | no | no ntp_kernel_pll_off | no | no ntp_offset | no | no [no ntpq program] ntp_states | no | no [ntpq not found] nvidia_ | no | no [no nvclock executable at /usr/bin/nvclock, please configure] open_files | yes | yes open_inodes | yes | yes pgbouncer_connections | no | no pgbouncer_requests | no | no postfix_mailqueue | yes | yes postfix_mailvolume | yes | yes postgres_autovacuum | no | no postgres_bgwriter | no | no postgres_cache_ | no | no postgres_checkpoints | no | no postgres_connections_ | no | no postgres_connections_db | no | no postgres_locks_ | no | no postgres_oldest_prepared_xact_ | no | no postgres_prepared_xacts_ | no | no postgres_querylength_ | no | no postgres_scans_ | no | no postgres_size_ | no | no postgres_transactions_ | no | no postgres_tuples_ | no | no postgres_users | no | no postgres_xlog | no | no proc | no | no proc_pri | yes | yes processes | yes | yes ps_ | no | no qmailqstat | no | no selinux_avcstat | no | no [missing /selinux/avc/cache_stats file] sendmail_mailqueue | no | no sendmail_mailstats | no | no [no mailstats command] sendmail_mailtraffic | no | no [no mailstats command] slapd_ | no | no [Net::LDAP not found] slapd_bdb_cache_ | no | no [Cant execute db_stat file /usr/bin/db4.6_stat] slony_lag_ | no | no smart_ | no | no [smartmontools not found] snort_alerts | no | no [/var/snort/snort.stats not readable] snort_bytes_pkt | no | no [/var/snort/snort.stats not readable] snort_drop_rate | no | no [/var/snort/snort.stats not readable] snort_pattern_match | no | no [/var/snort/snort.stats not readable] snort_pkts | no | no [/var/snort/snort.stats not readable] snort_traffic | no | no [/var/snort/snort.stats not readable] squeezebox_ | no | no [no connection on localhost port 9090] squid_cache | no | no [could not connect: Connection refused] squid_objectsize | no | no [could not connect: Connection refused] squid_requests | no | no [could not connect: Connection refused] squid_traffic | no | no [could not connect: Connection refused] swap | yes | yes threads | yes | yes uptime | yes | yes users | yes | yes varnish_ | no | no [varnishstat could not be found] vmstat | yes | yes vserver_cpu_ | no | no [/proc/virtual/info not found] vserver_loadavg | no | no [/proc/virtual/info not found] vserver_resources | no | no [/proc/virtual/info not found] yum | no | no [Could not find statefile. Please read munindoc yum]启用Apache状态cat _EOF_ /etc/httpd/conf.d/server-status.conf Location /server-status SetHandler server-status Require host localhost /Location _EOF_systemctl restart httpd启用服务器状态对于Apache监控是必要的。从 Apache 2.3.6 起mod_status 模块在加载时默认切换。ExtendedStatusOn附加内容munin-node-configure -shell | sh自动启动设置和启动systemctl enable munin-node systemctl start munin-nodeMunin 主服务器安装yum install httpd munin设置调整chown apache:munin /var/log/munin如果你后来安装Apache就无法再查看放大后的图表所以请更改日志目录的所有者。性能改进处理 cron 的分割sed -i /munin-cron/s/^/#/ /etc/cron.d/munin cat _EOF_ /etc/cron.d/munin */5 * * * * munin test -x /usr/bin/munin-cron /usr/share/munin/munin-update 5 */1 * * * munin test -x /usr/bin/munin-cron /usr/share/munin/munin-graph --cron 10 07 * * * munin test -x /usr/bin/munin-cron /usr/share/munin/munin-html _EOF_通过将图的生成频率从每5分钟改为每小时HTML生成从每5分钟改为每天从而提升性能。如果您想查看最新图表只需点击该图表即可查看放大后的图表。移除不必要的插件unlink /etc/munin/plugins/entropy unlink /etc/munin/plugins/interrupts unlink /etc/munin/plugins/irqstats排除很少见的图表可以减轻负担。自动启动设置和启动systemctl enable httpd systemctl start httpdBASIC认证htpasswd /etc/munin/munin-htpasswd username默认屏幕示例模板蒙斯特拉普curl -L https://github.com/jonnymccullagh/munstrap/archive/master.tar.gz -o munstrap.tar.gz mkdir /etc/munin/munstrap tar vzxf munstrap.tar.gz --strip1 -C /etc/munin/munstrap sed -i /etc/munin/munin.conf -e /^tmpldir/s/^/#/ -e /^staticdir/s/^/#/ sed -i /#tmpldir/a tmpldir /etc/munin/munstrap/templates /etc/munin/munin.conf sed -i /#staticdir/a staticdir /etc/munin/munstrap/static /etc/munin/munin.conf分类被标记后界面更清晰了一些。munin_dynamic_templatecurl -L https://github.com/DaveMDS/munin_dynamic_template/archive/master.tar.gz -o munin_dynamic_template.tar.gz mkdir /etc/munin/munin_dynamic_template tar vzxf munin_dynamic_template.tar.gz --strip1 --excludemunin1 -C /etc/munin/munin_dynamic_template sed -i /etc/munin/munin.conf -e /^tmpldir/s/^/#/ -e /^staticdir/s/^/#/ sed -i /#tmpldir/a tmpldir /etc/munin/munin_dynamic_template/munin2 /etc/munin/munin.conf sed -i /#staticdir/a staticdir /etc/munin/munin_dynamic_template/munin2/static /etc/munin/munin.conf现代文忍curl -L https://github.com/sjoudry/modern-munin/archive/master.tar.gz -o modern-munin.tar.gz mkdir /etc/munin/modern-munin tar vzxf modern-munin.tar.gz --strip1 -C /etc/munin/modern-munin sed -i /etc/munin/munin.conf -e /^tmpldir/s/^/#/ -e /^staticdir/s/^/#/ sed -i /#tmpldir/a tmpldir /etc/munin/modern-munin /etc/munin/munin.conf sed -i /#staticdir/a staticdir /etc/munin/modern-munin/static /etc/munin/munin.confMunin-B3curl -L https://code.not-your-server.de/munin-b3.git/tags/0.3.2.tar.gz -o munin-b3.tar.gz mkdir /etc/munin/munin-b3 tar vzxf munin-b3.tar.gz --strip1 -C /etc/munin/munin-b3 sed -i /etc/munin/munin.conf -e /^tmpldir/s/^/#/ -e /^staticdir/s/^/#/ sed -i /#tmpldir/a tmpldir /etc/munin/munin-b3/templates /etc/munin/munin.conf sed -i /#staticdir/a staticdir /etc/munin/munin-b3/static /etc/munin/munin.confMunin JQuery 模板curl -L https://github.com/mallocator/Munin-JQuery-Template/archive/master.tar.gz -o munin-jquery-template.tar.gz mkdir /etc/munin/munin-jquery-template tar vzxf munin-jquery-template.tar.gz --strip1 -C /etc/munin/munin-jquery-template sed -i /etc/munin/munin.conf -e /^tmpldir/s/^/#/ -e /^staticdir/s/^/#/ sed -i /#tmpldir/a tmpldir /etc/munin/munin-jquery-template/templates /etc/munin/munin.conf ln -s /etc/munin/munin-jquery-template/templates/assets /var/www/html/munin/ ln -s /etc/munin/munin-jquery-template/templates/style.css /var/www/html/munin/拖放功能作为实验很有趣但设置和易用性有些令人失望。看起来放大后的图表没有关联。相关监测文章服务器监控工具 Munin服务器监控工具 Xymon服务器监控工具Zabbix