Ganglia：分布式監(jiān)控系統(tǒng)

Ganglia的核心包含gmond、gmetad以及一個(gè)Web前端。主要是用來監(jiān)控系統(tǒng)性能，如：cpu 、mem、硬盤利用率， I/O負(fù)載、網(wǎng)絡(luò)流量情況等，通過曲線很容易見到每個(gè)節(jié)點(diǎn)的工作狀態(tài)，對合理調(diào)整、分配系統(tǒng)資源，提高系統(tǒng)整體性能起到重要作用

Ganglia監(jiān)控端安裝

1、安裝依賴的軟件包

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yum?install?ntp?vim-enhanced?gcc?gcc-c++?flex?bison?autoconf?automake?bzip2-devel?ncurses-devel?zlib-devel?libjpeg-devel?libpng-devel?libtiff-devel?freetype-devel?libXpm-devel?gettext-devel??pam-devel?python-devel?perl?perl-devel?expat?expat-devel?pcre?pcre-devel?apr?apr-devel?cairo-devel和pango-devel

需要安裝rrdtool工具 最新版本的ganglia已可以直接使用yum安裝rrdtool工具即可，

2、安裝confuse

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wget?http://download.savannah.gnu.org/releases/confuse/confuse-2.7.tar.gz tar?zxf?confuse-2.7.tar.gz cd?confuse-2.7 ./configure?CFLAGS=-fPIC?--disable-nls?;make;make?install? cd?..

3、安裝ganglia

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?wget?http://downloads.sourceforge.net/project/ganglia/ganglia%20monitoring%20core/3.3.1/ganglia-3.3.1.tar.gz tar?zxf?ganglia-3.3.1.tar.gz cd?ganglia-3.3.1 #server?監(jiān)控端 ./configure?--prefix=/usr/local/ganglia?--with-static-modules?--enable-gexec?--enable-status?--with-gmetad?--with-python=/usr?--with-librrd=/usr/local/rrdtool?--with-libexpat=/usr?--with-libconfuse=/usr/local?--with-libpcre make make?install cd?gmetad cp?gmetad.conf?/opt/modules/ganglia/etc/ cp?gmetad.init?/etc/init.d/gmetad vim?/etc/init.d/gmetad 修改為GMETAD=/usr/local/ganglia/sbin/gmetad ip?route?add?239.2.11.71?dev?eth0??##添加廣播路由

Ganglia：被監(jiān)控端安裝：

1、安裝依賴的軟件包

1	yum?install?ntp?vim-enhanced?gcc?gcc-c++?flex?bison?autoconf?automake?bzip2-devel?ncurses-devel?zlib-devel?libjpeg-devel?libpng-devel?libtiff-devel?freetype-devel?libXpm-devel?gettext-devel??pam-devel?python-devel?perl?perl-devel?expat?expat-devel?pcre?pcre-devel?apr?apr-devel

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wget?http://download.savannah.gnu.org/releases/confuse/confuse-2.7.tar.gz tar?zxf?confuse-2.7.tar.gz cd?confuse-2.7 ./configure?CFLAGS=-fPIC?--disable-nls?;make;make?install? cd?..

2、安裝ganglia

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wget?http://downloads.sourceforge.net/project/ganglia/ganglia%20monitoring%20core/3.3.1/ganglia-3.6.0.tar.gz tar?zxf?ganglia-3.6.0.tar.gz cd?ganglia-3.6.0 ./configure?--prefix=/usr/local/ganglia?--enable-gexec?--enable-status?--with-python=/usr?--with-libapr?--with-libconfuse=/usr/local?--with-libexpat=/usr?--with-libpcre make make?install cd?gmond ./gmond?-t?>?/usr/local/ganglia/etc/gmond.conf cp?gmetad.init?/etc/init.d/gmond vim?/etc/init.d/gmond 修改為： GMETAD=/usr/local/ganglia/sbin/gmond mkdir?/usr/local/ganglia/lib64/ganglia/python_modules cp?python_modules/*/*.py?/usr/local/ganglia/lib64/ganglia/python_modules ip?route?add?239.2.11.71?dev?eth0

安裝已完成，過程簡單。

Web網(wǎng)頁頁面在https://github.com/ganglia/ganglia-web

自行下載配置使用即可。

下面來監(jiān)控，使其能正常工作和使用。

ganglia是分布式監(jiān)控系統(tǒng)，也可以不使用分布來用。下面就分兩種方式來解說。

1、不使用分布式來監(jiān)控的方式

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服務(wù)器配置文件 修改兩項(xiàng)： data_source?"test1"?192.168.107.2 data_source?"test2"?172.16.1.4 ##這里分了兩個(gè)監(jiān)控組 data_source是關(guān)鍵字， “test1,test2”?是監(jiān)控主機(jī)組的名字，全局要唯一。?后面跟著要監(jiān)控的ip或主機(jī)名,如果有多個(gè)可以用空格隔開就可以了 gridname?"Test" 這個(gè)是定義監(jiān)控集的名字，

如下所示：

現(xiàn)在ganglia還沒有啟動，在啟動之前執(zhí)行下面命令：

可以使用命令查看是不是有配置錯誤的地方導(dǎo)致啟動不了

/usr/local/ganglia/sbin/gmetad -d 5

出錯的地方應(yīng)該可以修改配置文件gmetad.conf得到修正、

service gmetad start 來啟動服務(wù)

好了，再看客戶端的配置吧

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在客戶端配置 globals?{ ??daemonize?=?yes ??setuid?=?yes ??user?=?nobody ??debug_level?=?0 ??max_udp_msg_len?=?1472 ??mute?=?no ??deaf?=?no ??allow_extra_data?=?yes ??host_dmax?=?86400?/*secs.?Expires?(removes?from?web?interface)?hosts?in?1?day?*/ ??host_tmax?=?20?/*secs?*/ ??cleanup_threshold?=?300?/*secs?*/ ??gexec?=?no ??#?By?default?gmond?will?use?reverse?DNS?resolution?when?displaying?your?hostname ??#?Uncommeting?following?value?will?override?that?value. ??#?override_hostname?=?"mywebserver.domain.com" ??#?If?you?are?not?using?multicast?this?value?should?be?set?to?something?other?than?0. ??#?Otherwise?if?you?restart?aggregator?gmond?you?will?get?empty?graphs.?60?seconds?is?reasonable ??send_metadata_interval?=?0?/*secs?*/ } cluster?{ ??name?=?"test1"??????####需要修改與服務(wù)器端設(shè)定相同的名字?### ??owner?=?"nobody"?????????###修改為nobody ??latlong?=?"unspecified" ??url?=?"unspecified" } host?{ ??location?=?"unspecified" } udp_send_channel?{ ??#bind_hostname?=?yes?#?Highly?recommended,?soon?to?be?default. ???????????????????????#?This?option?tells?gmond?to?use?a?source?address ???????????????????????#?that?resolves?to?the?machine's?hostname.??Without ???????????????????????#?this,?the?metrics?may?appear?to?come?from?any ???????????????????????#?interface?and?the?DNS?names?associated?with ???????????????????????#?those?IPs?will?be?used?to?create?the?RRDs. ??mcast_join?=?239.2.11.71??##與設(shè)定的要一樣哦 ??port?=?8649???????????????##默認(rèn)端口 ??ttl?=?1 } udp_recv_channel?{ ??mcast_join?=?239.2.11.71???##與設(shè)定的要一樣哦 ??port?=?8649????????????????##默認(rèn)端口 ??bind?=?239.2.11.71 ??retry_bind?=?true ??#?Size?of?the?UDP?buffer.?If?you?are?handling?lots?of?metrics?you?really ??#?should?bump?it?up?to?e.g.?10MB?or?even?higher. ??#?buffer?=?10485760 } /*?You?can?specify?as?many?tcp_accept_channels?as?you?like?to?share ???an?xml?description?of?the?state?of?the?cluster?*/ tcp_accept_channel?{ ??port?=?8649 ??#?If?you?want?to?gzip?XML?output ??gzip_output?=?no }

啟動客戶端

在客戶端也是可以使用debug來調(diào)試配置是不是有錯

/usr/local/ganglia/sbin/gmond -d 5

service gmond start

下面來說第2種分布式監(jiān)控系統(tǒng)

2、分布式監(jiān)控

主gmetad ? ?多個(gè)次gmetad ? ?被監(jiān)控點(diǎn)

|------ gmond

?? ? _ gmetad---|------ gmond

?? ? | |------ gmond

?? ? |?

gmetad-------|_ gmetad---|-------gmond

? ? ? | ? ? | ?? ? ? ? |------gmond

? ? ? | ? ? ? |__ gmetad----|------gmond

? ? ? | ?|------gmond

? ? ? |_gmond

? ? ? |-gmond

從面可以看到多個(gè)gmetad點(diǎn)和多個(gè)gmond點(diǎn)

主要是從次節(jié)點(diǎn)的配置：

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下面對次節(jié)點(diǎn)配置如下 ?gmetad.conf ?配置如下： ?data_source?"test2"?localhost?ip/hostname ?gmond.conf配置文件如下： ?cluster?{ ??name?=?"test2" ??owner?=?"nobody" ??latlong?=?"unspecified" ??url?=?"unspecified" } host?{ ??location?=?"unspecified" } udp_send_channel?{ ??#bind_hostname?=?yes?#?Highly?recommended,?soon?to?be?default. ???????????????????????#?This?option?tells?gmond?to?use?a?source?address ???????????????????????#?that?resolves?to?the?machine's?hostname.??Without ???????????????????????#?this,?the?metrics?may?appear?to?come?from?any ???????????????????????#?interface?and?the?DNS?names?associated?with ???????????????????????#?those?IPs?will?be?used?to?create?the?RRDs. ??mcast_join?=?172.16.1.4?####次節(jié)點(diǎn)的ip地址。也就次節(jié)點(diǎn)自己的ip地址 ??port?=?8649 ??} udp_recv_channel?{ ??port?=?8649 ??family?=?inet4 } /*?You?can?specify?as?many?tcp_accept_channels?as?you?like?to?share ???an?xml?description?of?the?state?of?the?cluster?*/ tcp_accept_channel?{ ??port?=?8649 }

次節(jié)點(diǎn)下的gmond節(jié)點(diǎn)配置與次節(jié)點(diǎn)gmond的配置一樣，直接copy一份到gmond上面就好。

關(guān)于Ganglia的主要配置到此為止了。Ganglia的views功能還在研究當(dāng)中，不過這個(gè)view添加很麻煩，我配置的好久也，只是在配置文件中添加，在頁面上沒有添加成功，因?yàn)轫撁嫔蠜]有添加view的功能，，這個(gè)很不爽，網(wǎng)上查了很多資料，只是在官網(wǎng)上找到一點(diǎn)相關(guān)E文，，，，，，希路過的大牛能指點(diǎn)一二，多謝！

本文轉(zhuǎn)自 ZhouLS 51CTO博客，原文鏈接:http://blog.51cto.com/zhou123/1543105

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