Cacti+Nagios應用詳解（三）spine及最新補丁的安裝

由於cmd.php不能滿足項目需求，用spine替換掉

1.下載Cacti-spine最新版本，(要同使用的cacti版本相匹配)

下載地址:http://www.cacti.net/downloads/spine/

2.由於安裝spine，測試中發現，執行—with-snmp= /usr/include/net-snmp/報“error: Cannot find UCD-SNMP libraries(snmp)”這個錯誤，最後只能卸載之前用yum安裝的net-snmp

a.卸載net-snmp

[root@cacti soft]#yum list |grep net-snmp

[root@cacti soft]#yum remove net-snmp

b.安裝net-snmp源包

下載地址：http://sourceforge.net/projects/net-snmp/files/net-snmp/5.4.3/

[root@cacti soft]#tar zxvf net-snmp-5.4.3.tar.gz

[root@cacti soft]#cd net-snmp-5.4.3

[root@cacti net-snmp-5.4.3]#./configure --prefix=/usr/local/net-snmp

[root@cacti net-snmp-5.4.3]#make ;make install

[root@cacti net-snmp-5.4.3]#cp EXAMPLE.conf /usr/local/net-snmp/share/snmp/snmpd.conf

[root@cacti net-snmp-5.4.3]#ln -s /usr/local/net-snmp/bin/* /usr/local/bin/

[[email protected]]#/usr/local/net-snmp/sbin/snmpd -c /usr/local/net-snmp/share/snmp/snmpd.conf

[[email protected]]#echo“/usr/local/net-snmp/sbin/snmpd /usr/local/net-snmp/share/snmp/snmpd.conf ”>>/etc/rc.local

3.安裝spine

[root@cacti soft]#wget http://www.cacti.net/downloads/spine/cacti-spine-0.8.7g.tar.gz

[root@cacti soft]#tar zxvf cacti-spine-0.8.7g.tar.gz

[root@cacti soft]#cd cacti-spine-0.8.7g

[[email protected]]#./configure --prefix=/usr/local/cacti-spine --with-snmp=/usr/local/net-snmp

[root@cacti cacti-spine-0.8.7g]#make && make install

[root@cacti cacti-spine-0.8.7g]#cd /usr/local/cacti-spine/etc/

[root@cacti etc]#cp spine.conf.dist spine.conf

[root@cacti etc]#vi spine.conf

[root@cacti etc]#service httpd restarat

[root@cacti etc]#crontab -e（設置輪詢刷新時間）

接著在cacti頁面上面設置poller選擇spine，如下圖設置

這樣就結束了.

URL：http://www.bianceng.cn/OS/Linux/201410/46046.htm

4.由於這段時間發現cacti出問題，用snmkwalk能抓到數據，但圖出不來，如下情況

後來查看了cacti日子信息後發現提示以下錯誤：

經過谷歌搜索，發現最近spine有bug，需要安裝最新補丁.

+Patched 0.8.7g
+-bug#0001669: Problems with getting data from script using SPINE on Windows Server 2003 x32 
+-bug#0001829: Wrong string numerical value got from Spine SNMP poller 
+-bug: Net-snmp API issues cause spine crashes with some SNMP agents
+-bug: Host list not properly initialized
+-bug: Mutex locking issues cause deadlocks in Windows
+-bug: Escape windows type back slashes in scripts

下載最新補丁：

http://www.cacti.net/downloads/spine/patches/0.8.7g/unified_issues.patch

下載好的補丁放在cacti-spine-0.8.7g目錄下面

然後需重新執行安裝步驟

[[email protected]]#./configure --prefix=/usr/local/cacti-spine --with-snmp=/usr/local/net-snmp

[[email protected]]# patch -p1 -N < unified_issues.patch

[root@cacti cacti-spine-0.8.7g]#make && make install

[root@cacti cacti-spine-0.8.7g]#cd /usr/local/cacti-spine/etc/

[root@cacti etc]#cp spine.conf.dist spine.conf

[root@cacti etc]##vi spine.conf （覆蓋後重新修改連接數據庫的賬號密碼）

[root@cacti etc]#service httpd restarat

重新查看cacti日志：

再mark一下（2011.03.23）

報以下錯誤

03/23/2011 11:57:01 AM - PHPSVR: Poller[0]
ERROR: Input Expected, Script Server Terminating 03/23/2011 11:57:01 AM - PHPSVR: Poller[0]
ERROR: Input Expected, Script Server Terminating 03/23/2011 11:57:01 AM - PHPSVR: Poller[0]
ERROR: Input Expected, Script Server Terminating 03/23/2011 11:57:01 AM - SPINE: Poller[0]
FATAL: Connection Failed, Error:'1040',
Message:'Too many connections' (Spine thread)

URL：http://www.bianceng.cn/OS/Linux/201410/46046.htm

解決方法：

vim /etc/my.cnf

增加set-variable = max_connections=500

/etc/init.d/mysqld restart

再mark一下（2011.04.27）

最近發現cacti監控表每隔10分鐘抓不到數據，很奇怪，也不知道哪位同事修改了Console -> Cacti Settings -poller-Poller Interval為30秒，後來改回一分鐘一切恢復正常

因為在系統本身是設置一分鐘，覺得有沖突

[root@cacti ~]# crontab -e

*/1 * * * * env LANG=C /usr/bin/php /var/www/html/poller.php > /dev/null 2>&1

問題圖如下：