Zabbix安装部署
一 安装
1. 版本
Zabbix 2.4.7 Mysql 5.7.9
2. Mysql yum安装注意
a. 安装时注意删除系统默认mysql和my.cnf
3. 初始化后自动生成密码在error.log中 在5.6版本中是放在 ~/.mysql_secret 文件
例 2015-12-02T05:21:41.917241Z 1 [Note] A temporary password is generated for root@localhost : r/Cfgl<l+2#r
查找密码 grep "temporary password" mysql-error.log | awk '{print $NF}'
输入密码时要加双引号 mysql -uroot -p"r/Cfgl<l+2#r"
4. 进入Mysql后要重置密码 密码必须复杂
mysql> alter user 'root'@'localhost' identified by 'password';
如果密码简单,会提示 Your password does not satisfy the current policy requirements
5. 启动zabbix_server报错 /etc/init.d/zabbix_server restart
Shutting down zabbix_server: [FAILED]
Starting zabbix_server: /opt/zabbix-server/sbin/zabbix_server: error while loading shared libraries: libmysqlclient.so.18: cannot open shared object file: No such file or directory
解决方法 从其他服务器复制 libmysqlclient.so.18 文件到 /usr/lib64
6. web页报错
提示zabbix server is not running the information displayed may not be current 日志提示 connection to database 'zabbix' failed: [2002] Can't connect to local MySQL serve
r through socket '/tmp/mysql.sock'
解决方法 在zabbix_server.conf 和zabbix_proxy.conf中增加一行
DBSocket=/var/lib/mysql/mysql.sock
7. 清理历史记录
truncate table history;
truncate table history_uint;
truncate table history_str;
truncate table trends;
二. 配置
1. 监控 nginx
导入模板Custom Template NGINX.xml，配置KEY
UserParameter=nginx.status[*],/opt/zabbix-agent/scripts/nginx-status.sh $1
创建脚本nginx_status.sh
#!/bin/bash
# DateTime:
# Description：zabbix监控nginx性能以及进程状态
HOST="127.0.0.1"
PORT="80"
# 检测nginx进程是否存在
function ping {
/sbin/pidof nginx | wc -l
}
# 检测nginx性能
function active {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| grep 'Active' | awk '{print $NF}'
}
function reading {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| grep 'Reading' | awk '{print $2}'
}
function writing {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| grep 'Writing' | awk '{print $4}'
}
function waiting {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| grep 'Waiting' | awk '{print $6}'
}
function accepts {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| awk NR==3 | awk '{print $1}'
}
function handled {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| awk NR==3 | awk '{print $2}'
}
function requests {
/usr/bin/curl "http://$HOST:$PORT/nginx_status/" 2>/dev/null| awk NR==3 | awk '{print $3}'
}
# 执行function
$1
在服务端测试
zabbix_get -s 10.1.1.3 -k 'nginx.status[accepts]'
2. 使用JMX 监控 Tomcat
2.1 导入模板 Custom Template Tomcat.xml，在 zabbix web 端主机增加JMX介面,模板选择 Template JMX Generic 和 Custom Template Tomcat
2.2 下载对应版本 catalina-jmx-remote.jar 放到tomcat lib目录
http://archive.apache.org/dist/tomcat/tomcat-8/v8.0.24/bin/extras/catalina-jmx-remote.jar
2.3 在 catalina.sh 增加配置 需要在防火墙开放12345-12346端口
CATALINA_OPTS="$CATALINA_OPTS -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false"
2.4 在 service.xml 添加
<Listener className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener" rmiRegistryPortPlatform="12345" rmiServerPortPlatform="12346"/>
2.5 iptables添加
-A INPUT -s 10.1.1.2 -m state --state NEW -m tcp -p tcp --dport 12345:12346 -j ACCEPT
-A INPUT -s 10.1.1.2 -m state --state NEW -m tcp -p tcp --dport 10050:10051 -j ACCEPT
-A INPUT -s 10.1.1.2 -m state --state NEW -m udp -p udp --dport 10050:10051 -j ACCEPT
检测命令
java -jar /root/cmdline-jmxclient-0.10.3.jar - 10.1.1.3:12345 java.lang:type=Memory NonHeapMemoryUsage
3. 监控Mysql
3.1 Mysql状态
删除默认模板Template App MySQL.xml，导入模板，此模板相对默认模板增加了Threads，Active_connection .添加key ,检查mysqladmin命令是否存在
UserParameter=mysql.version,mysql -V
UserParameter=mysql.ping,mysqladmin -uroot -p123456 -P3306 -h'127.0.0.1' ping 2>/dev/null | grep -c alive
创建脚本vim /opt/zabbix-agent/scripts/chk_mysql.sh
#!/bin/bash
# -------------------------------------------------------------------------------
# FileName: check_mysql.sh
# Revision: 1.0
# Date: 2015/12/11
# Description:
# 用户名
MYSQL_USER='root'
# 密码
MYSQL_PWD='123456'
# 主机地址/IP
MYSQL_HOST='127.0.0.1'
# 端口
MYSQL_PORT='3306'
# 数据连接
MYSQL_CONN="/usr/bin/mysqladmin -u${MYSQL_USER} -p${MYSQL_PWD} -h"${MYSQL_HOST}" -P${MYSQL_PORT}"
# 参数是否正确
if [ $# -ne "1" ];then
echo "arg error!"
fi
# 获取数据
case $1 in
Uptime)
result=`${MYSQL_CONN} status 2>/dev/null |cut -f2 -d":"|cut -f1 -d"T"`
echo $result
;;
Com_update)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_update"|cut -d"|" -f3`
echo $result
;;
Slow_queries)
result=`${MYSQL_CONN} status 2>/dev/null |cut -f5 -d":"|cut -f1 -d"O"`
echo $result
;;
Com_select)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_select"|cut -d"|" -f3`
echo $result
;;
Com_rollback)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_rollback"|cut -d"|" -f3`
echo $result
;;
Questions)
result=`${MYSQL_CONN} status 2>/dev/null |cut -f4 -d":"|cut -f1 -d"S"`
echo $result
;;
Com_insert)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_insert"|cut -d"|" -f3`
echo $result
;;
Com_delete)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_delete"|cut -d"|" -f3`
echo $result
;;
Com_commit)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_commit"|cut -d"|" -f3`
echo $result
;;
Bytes_sent)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Bytes_sent" |cut -d"|" -f3`
echo $result
;;
Bytes_received)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Bytes_received" |cut -d"|" -f3`
echo $result
;;
Com_begin)
result=`${MYSQL_CONN} extended-status 2>/dev/null |grep -w "Com_begin"|cut -d"|" -f3`
echo $result
;;
Threads)
result=`${MYSQL_CONN} status 2>/dev/null | awk '{print $4}'`
echo $result
;;
Active_connection)
result=`${MYSQL_CONN} processlist 2>/dev/null |grep -i Query|wc -l`
echo $result
;;
*)
echo "Usage:$0(Uptime|Com_update|Slow_queries|Com_select|Com_rollback|Questions|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin|Threads|Active_connection)"
;;
esac
3.2 Mysql表行数
导入模板 Custom Template Mysql tables.xml ， 添加key
UserParameter=mysql.table[*],/opt/zabbix-server/scripts/mysql_tables.sh $1
#!/bin/bash
MYSQL_USER='root'
MYSQL_PWD='123456'
MYSQL_HOST='127.0.0.1'
MYSQL_PORT='3306'
MYSQL_CONN="/usr/bin/mysql -u${MYSQL_USER} -p${MYSQL_PWD} -h${MYSQL_HOST} -P${MYSQL_PORT}"
# MYSQL COMMAND
MYSQL_CMD1="use information_schema;"
MYSQL_CMD2="select table_schema,table_name,table_rows from tables where table_schema='owl2';"
MYSQL_TABLES=`${MYSQL_CONN} -e "use owl2;show tables;" 2>/dev/null |grep t_`
# 参数是否正确
if [ $# -ne "1" ];then
echo "arg error!"
fi
# select tables rows
if echo $MYSQL_TABLES |grep -q $1
then
result=`${MYSQL_CONN} -e "${MYSQL_CMD1}${MYSQL_CMD2}" 2>/dev/null |grep -w $1 |awk '{print $3}'`
echo $result
fi
4. 监控 Redis
4.1 被监控机需要有redis-cli命令
4.2 导入模板 Custom Template Redis_6379.xml ， 添加key
UserParameter=redis_stats[*],redis-cli -h 127.0.0.1 -p $1 -a password info|grep $2 | cut -d : -f2
4.3 检测命令
zabbix_get -s 10.1.1.2 -k redis_stats[6379,total_connections_received]
5 监控MongoDB
5.1 导入模板Custom Template MongoDB.xml，添加key 注意key中使用变量需要两个$$
UserParameter=MongoDB.Status[*],/bin/echo "db.serverStatus().$1" | /usr/bin/mongo 127.0.0.1:27017 | grep "$2"|awk -F':' '{print $$2}'|awk -F',' '{print $$1}'
UserParameter=MongoDB.networkIn[*],/bin/echo "db.serverStatus().$1" | /usr/bin/mongo | grep "$2"|awk -F'[()"]' '{print $$5}'
UserParameter=MongoDB.networkOut[*],/bin/echo "db.serverStatus().$1" | /usr/bin/mongo | grep "$2"|awk -F'"' '{print $$4}'
6 监控 DISK IO
http://www.ttlsa.com/zabbix/zabbix-lld-monitor-disk-io-stats/
http://blog.chinaunix.net/uid-26446098-id-4964263.html
6.1 导入模板 Custom Template DISK IO.xml 添加key
UserParameter=discovery.disks.iostats,/opt/zabbix-agent/scripts/discover_disk.pl
UserParameter=disk.ops.read[*],grep -w "$1" /proc/diskstats| awk '{print $$4}'
UserParameter=disk.ops.write[*],grep -w "$1" /proc/diskstats| awk '{print $$8}'
UserParameter=disk.rsec[*],grep -w "$1" /proc/diskstats | awk '{print $$6}'
UserParameter=disk.wsec[*],grep -w "$1" /proc/diskstats | awk '{print $$10}'
UserParameter=disk.io.ms[*],grep -w "$1" /proc/diskstats | awk '{print $$13}'
6.2 添加脚本 discover_disk.pl
6.3 添加正则 在管理--一般---最右边下拉 选择正则表达式
名称 Linux disks for autodiscovery
表达式 两种写法
^(xvda|xvdb|xvdc|xvdd|vda|vdb|vdc|vdd|sd[a-z])$
^(hd[a-z]|sd[a-z]|xvd[a-z]|vd[a-z]|dm-[0-9])$
表示式类型 结果为真
区分大小写 不选
6.4 检测命令
测试zabbix_server不能用127.0.0.1
time zabbix_get -s 10.172.194.67 -k 'disk.ops.read[xvdb]'
备注 不同方法获取速度不同, ,在I/O繁忙时,用脚本无法获取到数据