then lock file timeout conf 腳本 secret oot rac div

3.4 server前端高可用

至此，單臺Zabbix server環境已經搭建完成，為了達到高可用效果，我們需要通過2臺服務器之間通過HA軟件進行探測，一旦檢測到主的server掛掉後，從的server會立即頂替。我們這裏采用keepalived軟件來實現。

3.4.1 Keepalived安裝

直接yum安裝即可 Yum install keepalived

3.4.2 keepalived配置

Master上的keepalived配置如下：

【Master】 cat /etc/keepalived/keepalived.conf

! Configuration File for keepalived
 
global_defs {
   notification_email {
     [email protected]
   }
   notification_email_from [email protected]
   smtp_server 
 
127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
 
vrrp_script chk_zabbix_server {
 
script "/etc/keepalived/chk_zabbix_server.sh"
interval 30
weight 2
 
 
}
vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 60
    priority 150
    advert_int 1
    mcast_src_ip 142.162
 
.196.111
    authentication {
        auth_type PASS
        auth_pass ZabbixServer
    }
   track_script {
  
    chk_zabbix_server
 
   }
    virtual_ipaddress {
        142.162.196.116
    }
}

【Slave】slave上的配置如下:

cat /etc/keepalived/keepalived.conf

! Configuration File for keepalived
 
global_defs {
   notification_email {
     [email protected]
   }
   notification_email_from [email protected]
   smtp_server 
 
127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
 
vrrp_script chk_zabbix_server {
 
script "/etc/keepalived/chk_zabbix_server.sh"
interval 30
weight 2
 
 
}
vrrp_instance VI_1 {
    state BACKUP
    interface eth0
    virtual_router_id 60
    priority 99
    advert_int 1
    mcast_src_ip 142.162.196.112
    authentication {
        auth_type PASS
        auth_pass ZabbixServer
    }
   track_script {
 
   chk_zabbix_server
   }
    virtual_ipaddress {
        142.162.196.116
    }
}

服務器上的檢測腳本如下：

cat /etc/keepalived/chk_zabbix_server.sh

#!/bin/bash
#
#
status1=$(ps aux|grep -w "zabbix_server" | grep -v grep | grep -v bash | wc -l)
 
if [ "${status1}" = "0" ]; then
 
        /etc/init.d/zabbix-server start
        sleep 3
 
        status2=$(ps aux|grep zabbix_server | grep -v grep | grep -v bash |wc -l)
        if [ "${status2}" = "0"  ]; then
                /etc/init.d/keepalived stop
        fi
fi

3.5 Zabbix master和slave文件同步

為了達到主從切換後，master和slave的文件一致，我們這裏采用了rsync進行服務端文件實時同步。 需要同步的服務器配置【Slave】：

3.5.1 rsync安裝

yum install rsync

3.5.2配置rsync，同步web文件和配置文件

cat rsync.conf ###################global config#################### uid = nobody gid = nobody use chroot = yes strict modes = yes timeout = 300 transfer logging = true log format = %h %a %o %f %u %l %m %P pid file = /var/run/rsyncd.pid lock file = /var/run/rsync.lock log file = /var/log/rsyncd.log incoming chmod = Du=rwx,Dg=rx,Do=r,Fu=rwx,Fg=rx,Fo=r exclude from = /etc/rsyncd/exclude_filelist auth users = zabbixmonitor secrets file = /etc/rsyncd/zabbixmonitor.pas hosts allow = * #####################module config################### [zabbixweb] path = /usr/share/zabbix/ comment = zabbixweb_log #ignore errors log file = /var/log/rsync/zabbixweb.log read only = no write only = no list = false uid = root gid = root #####################module config################### [zabbixconfig] path = /etc/zabbix/zabbix_server.conf comment = zabbixconfig_log #ignore errors log file = /var/log/rsync/zabbixconfig.log read only = no write only = no list = false uid = root gid = root /usr/bin/rsync --daemon --config=/etc/rsyncd/rsync.conf

3.5.3 sersync配置

被同步的服務端【Master】 被同步端采用金山周洋同學寫的sersync程序進程實施同步，這個sersync集成了rsync+inotify功能，只需在後臺開啟進程即可。 cd sersync/ [[email protected] sersync]# ll total 1780 -rwxr-xr-x 1 root root 2214 Oct 26 2011 confxml.xml -rwxr-xr-x 1 root root 1810128 Oct 26 2011 sersync2 -rwxr-xr-x 1 root root 2247 Jan 21 15:17 zabbixconfig.xml -rwxr-xr-x 1 root root 2248 Jan 21 15:44 zabbixweb.xml Zabbixweb.xml配置：

<sersync>
        <localpath watch="/usr/share/zabbix/">
            <remote ip="172.29.31.112" name="zabbixweb"/>
        </localpath>
        <rsync>
            <commonParams params="-artuz"/>
            <auth start="true" users="zabbixmonitor" passwordfile="/etc/rsyncd/zabbixmonitor.pas"/>
            <userDefinedPort start="false" port="874"/><!-- port=874 -->
            <timeout start="false" time="100"/><!-- timeout=100 -->
            <ssh start="false"/>
        </rsync>
        <failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
        <crontab start="false" schedule="600"><!--600mins-->
            <crontabfilter start="false">
                <exclude expression="*.php"></exclude>
                <exclude expression="info/*"></exclude>
            </crontabfilter>
        </crontab>
        <plugin start="false" name="command"/>
</sersync>

Zabbixconfig.xml配置類似。

3.5.4 啟動

./sersync2 -n 2 -o zabbixconfig.xml -d ./sersync2 -n 2 -o zabbixweb.xml -d

Zabbix實戰-簡易教程（6）--Server端高可用