18.4. zabbix-agent-低调大师

18.4. zabbix-agent

2017-12-31 677

18.4.1. Ubuntu

# sudo apt-get install zabbix-agent

/etc/zabbix/zabbix_agent.conf

#Server=localhost
Server=your_server_ip_address

# vim /etc/services

zabbix-agent    10050/tcp                       #Zabbix Agent
zabbix-agent    10050/udp                       #Zabbix Agent

# sudo /etc/init.d/zabbix-agent restart

18.4.2. CentOS 7

yum localinstall -y http://repo.zabbix.com/zabbix/3.2/rhel/7/x86_64/zabbix-release-3.2-1.el7.noarch.rpm

yum install -y zabbix-agent

cp /etc/zabbix/zabbix_agentd.conf{,.original}

sed -i "s/# SourceIP=/SourceIP=zabbix_server_ip/" /etc/zabbix/zabbix_agentd.conf
sed -i "s/Server=127.0.0.1/Server=zabbix_server_ip/" /etc/zabbix/zabbix_agentd.conf
sed -i "s/ServerActive=127.0.0.1/ServerActive=zabbix_server_ip/" /etc/zabbix/zabbix_agentd.conf
sed -i "s/Hostname=Zabbix server/Hostname=Alpha Testing/" /etc/zabbix/zabbix_agentd.conf

systemctl enable zabbix-agent.service
systemctl start zabbix-agent.service

iptable -A INPUT -s zabbix_server_ip -p tcp -m state --state NEW -m tcp --dport 10050 -j ACCEPT

例 18.1. zabbix-agent 配置实例

# grep -v "^#" /etc/zabbix/zabbix_agentd.conf | grep -v "^$"
PidFile=/var/run/zabbix/zabbix_agentd.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=0
SourceIP=147.90.4.87
Server=147.90.4.87
ServerActive=147.90.4.87
Hostname=Alpha Testing
Include=/etc/zabbix/zabbix_agentd.d/*.conf

配置完成

18.4.3. zabbix_agentd 命令

测试工具

# zabbix_agentd --test dependency.discovery
dependency.discovery                          [t|{"data":[
{"{#NAME}":"UCWEB","{#IP}":"115.84.241.16","{#PORT}":"6666"},{"{#NAME}":"Redis","{#IP}":"115.84.241.16","{#PORT}":"6379"},{"{#NAME}":"Binary","{#IP}":"223.197.79.114","{#PORT}":"80"},{"{#NAME}":"SMS","{#IP}":"192.230.90.194","{#PORT}":"80"},{"{#NAME}":"CF1","{#IP}":"192.168.42.153","{#PORT}":"8080"},{"{#NAME}":"CF2","{#IP}":"192.168.42.134","{#PORT}":"8008"},{"{#NAME}":"CF3","{#IP}":"192.168.42.177","{#PORT}":"8080"},{"{#NAME}":"EDM","{#IP}":"47.89.27.78","{#PORT}":"80"}
]}]

18.4.4. Nginx status 监控

nginx status 监控扩展包 https://github.com/oscm/zabbix/tree/master/nginx

从 localhost 收集 nginx 状态信息

			
server {
    listen       80;
    server_name  localhost;

    location /status {
        stub_status on;
        access_log off;
        allow 127.0.0.1;
        deny all;
    }
}

配置 zabbix_agentd

创建配置文件 /etc/zabbix/zabbix_agentd.d/userparameter_nginx.conf 内容如下：

			
############################################################
# Redis - statistics
#
# Author: Neo Chen <netkiller@msn.com>
# Website: http://www.netkiller.cn
############################################################

# Discovery

# Return Redis statistics
UserParameter=nginx.status[*],/srv/zabbix/libexec/nginx.sh $1

安装数据采集脚本，请使用 nginx.sh

			
mkdir -p /srv/zabbix/libexec
vim /srv/zabbix/libexec/nginx.sh

chmod +x /srv/zabbix/libexec/nginx.sh

# /srv/zabbix/libexec/nginx.sh
Usage /srv/zabbix/libexec/nginx.sh {check|active|accepts|handled|requests|reading|writing|waiting}
# /srv/zabbix/libexec/nginx.sh accepts
82

# systemctl restart zabbix-agent.service

使用 zabbix-get 工具从 Zabbix Server 链接 Zabbix Agent 测试是否正常工作

			
Test Agent

# yum install -y zabbix-get

# zabbix_get -s <agent_ip_address> -k 'nginx.status[accepts]'
109

最后进入Zabbix Web界面导入模板 zbx_export_templates.xml

			
Import file: choice xml file
click "import" button

Imported successfully 表示成功导入

18.4.5. redis

获取最新模板以及脚本请访问 https://github.com/oscm/zabbix/tree/master/redis

创建代理配置文件

			
cat > /etc/zabbix/zabbix_agentd.d/userparameter_redis.conf <<'EOF'
############################################################
# Redis - statistics
#
# Author: Neo Chen <netkiller@msn.com>
# Website: http://www.netkiller.cn
############################################################

# Discovery

# Return Redis statistics
UserParameter=redis.status[*],redis-cli -h 127.0.0.1 -p 6379 info|grep $1|cut -d : -f2
UserParameter=redis.proc,pidof redis-server | wc -l

EOF

重启代理服务

systemctl restart zabbix-agent.service

测试

# zabbix_get -s www.netkiller.cn -k redis.status[redis_version]
2.8.19

导入模板文件

18.4.6. MongoDB

获取最新模板以及脚本请访问 https://github.com/oscm/zabbix/tree/master/mongodb

18.4.6.1. 创建 Mongo 监控用户

创建监控用户

				
[root@netkiller www.netkiller.cn]# mongo -u admin -p D90YVqwmUATUeFSxfRo14  admin

> use admin
switched to db admin

> db.createUser(
   {
     user: "monitor",
     pwd: "chen",
     roles: [ "clusterMonitor"]
   }
)

Successfully added user: { "user" : "monitor", "roles" : [ "clusterMonitor" ] }

> db.auth("monitor", "netkiller")
1

> exit
bye

				
# echo "db.stats();" | mongo -u monitor -p chen admin 
MongoDB shell version: 2.6.12
connecting to: test
{
	"db" : "test",
	"collections" : 0,
	"objects" : 0,
	"avgObjSize" : 0,
	"dataSize" : 0,
	"storageSize" : 0,
	"numExtents" : 0,
	"indexes" : 0,
	"indexSize" : 0,
	"fileSize" : 0,
	"dataFileVersion" : {
		
	},
	"ok" : 1
}
bye

[root@iZ62sreab5qZ www.cf88.com]# echo "db.serverStatus()" | mongo -u monitor -p chen admin | more
MongoDB shell version: 2.6.12
connecting to: admin
{
	"host" : "iZ62sreab5qZ",
	"version" : "2.6.12",
	"process" : "mongod",
	"pid" : NumberLong(612),
	"uptime" : 852982,
	"uptimeMillis" : NumberLong(852982589),
	"uptimeEstimate" : 845317,
	"localTime" : ISODate("2016-11-23T07:02:42.899Z"),
	"asserts" : {
		"regular" : 0,
		"warning" : 0,
		"msg" : 0,
		"user" : 26,
		"rollovers" : 0
	},
	"backgroundFlushing" : {
		"flushes" : 14216,
		"total_ms" : 251465,
		"average_ms" : 17.688871693866066,
		"last_ms" : 7,
		"last_finished" : ISODate("2016-11-23T07:02:23.283Z")
	},
	"connections" : {
		"current" : 16,
		"available" : 51184,
		"totalCreated" : NumberLong(566)
	},
	"cursors" : {
		"note" : "deprecated, use server status metrics",
		"clientCursors_size" : 0,
		"totalOpen" : 0,
		"pinned" : 0,
		"totalNoTimeout" : 0,
		"timedOut" : 8
	},
	"dur" : {
		"commits" : 30,
		"journaledMB" : 0,
		"writeToDataFilesMB" : 0,
		"compression" : 0,
		"commitsInWriteLock" : 0,
		"earlyCommits" : 0,
		"timeMs" : {
			"dt" : 3068,
			"prepLogBuffer" : 0,
			"writeToJournal" : 0,
			"writeToDataFiles" : 0,
			"remapPrivateView" : 0
		}
	},
--More--

18.4.6.2. Zabbix agentd 配置

				
cat > /etc/zabbix/zabbix_agentd.d/userparameter_mongodb.conf <<'EOF'
############################################################
# MongoDB - statistics
#
# Author: Neo Chen <netkiller@msn.com>
# Website: http://www.netkiller.cn
############################################################

# Discovery

# Return Redis statistics
UserParameter=mongodb.status[*],/srv/zabbix/libexec/mongodb.sh $1 $2 $3 $4 $5

EOF

安装采集脚本，创建 /srv/zabbix/libexec/mongodb.sh 文件

				
cat /srv/zabbix/libexec/mongodb.sh
#!/bin/bash
##################################################
# AUTHOR: Neo <netkiller@msn.com>
# WEBSITE: http://www.netkiller.cn
# Description：zabbix mongodb monitor
# Note：Zabbix 3.2
# DateTime: 2016-11-23
##################################################
HOST=localhost
PORT=27017
USER=monitor
PASS=chen

index=$(echo $@ | tr " " ".")

status=$(echo "db.serverStatus().${index}" |mongo -u ${USER} -p ${PASS} admin --port ${PORT}|sed -n '3p')
 
#check if the output contains "NumberLong"
if [[ "$status" =~ "NumberLong"   ]];then
	echo $status|sed -n 's/NumberLong(//p'|sed -n 's/)//p'
else 
	echo $status
fi

				
# chmod +x /srv/zabbix/libexec/mongodb.sh

# /srv/zabbix/libexec/mongodb.sh version
2.6.12

# systemctl restart zabbix-agent.service

18.4.6.3. Zabbix server 测试

				
[root@netkiller ~]# zabbix_get -s www.netkiller.cn -k mongodb.status[ok]
1
[root@netkiller ~]# zabbix_get -s www.netkiller.cn -k mongodb.status[version]
2.6.12

测试成功后导入模板

监控内容如下

链接数监控(当前连接数和可用连接数)
mongodb current mongodb.status[connections,current] 
mongodb available mongodb.status[connections,available] 

流量监控(每秒请求数,出站流量,入站流量)
mongodb mongodb.status[network,numRequests]
mongodb mongodb.status[network,bytesOut]
mongodb mongodb.status[network,bytesIn]

命令统计(查询，更新，插入，删除......)
mongodb query/s mongodb.status[opcounters,query]
mongodb update/s mongodb.status[opcounters,update]
mongodb insert/s mongodb.status[opcounters,insert]
mongodb getmore/s mongodb.status[opcounters,getmore]
mongodb delete/s mongodb.status[opcounters,delete]
mongodb command/s mongodb.status[opcounters,command]

内存监控
mongodb mem virtual mongodb.status[mem,virtual]
mongodb mem resident mongodb.status[mem,resident]
mongodb mem mapped mongodb.status[mem,mapped]
mongodb mem mappedWithJournal mongodb.status[mem,mappedWithJournal]

复制监控
mongodb repl mongodb.status[repl,ismaster]

锁监控
# zabbix_get -s www.chuangfu24.net -k mongodb.status[locks,admin,timeAcquiringMicros,r]

18.4.7. PHP-FPM

获取最新模板以及脚本请访问 https://github.com/oscm/zabbix/tree/master/php-fpm

18.4.7.1. 启用 php-fpm status 功能

这里假设你是采用 yum install php-fpm 方式安装的

				
sed -i "s/;pm.status_path/pm.status_path/" /etc/php-fpm.d/www.conf
sed -i "s/;ping/ping/" /etc/php-fpm.d/www.conf

systemctl reload php-fpm

18.4.7.2. 配置 nginx

				
server {
    listen       80;
    server_name  localhost;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

	location /stub_status {
        stub_status on;
        access_log   off;
        allow 127.0.0.1;
        deny all;
    }
    location ~ ^/(status|ping)$ {
        access_log off;
        allow 127.0.0.1;
        deny all;
        fastcgi_pass 127.0.0.1:9000;
		fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
        include fastcgi_params;
    }
}

18.4.7.3. 配置 Zabbix 代理

采集脚本 /srv/zabbix/libexec/php-fpm.xml.sh

				
#!/bin/bash
##################################################
# AUTHOR: Neo <netkiller@msn.com>
# WEBSITE: http://www.netkiller.cn
# Description：zabbix 通过 status 模块监控 php-fpm
# Note：Zabbix 3.2
# DateTime: 2016-11-22
##################################################

HOST="localhost"
PORT="80"
status="status"

function query() {
	curl -s http://${HOST}:${PORT}/${status}?xml | grep "$1" | awk -F'>|<' '{ print $3}'
}

if [ $# == 0 ]; then
		echo $"Usage $0 {pool|process-manager|start-time|start-since|accepted-conn|listen-queue|max-listen-queue|listen-queue-len|idle-processes|active-processes|total-processes|max-active-processes|max-children-reached|slow-requests}"
		exit	
else		
	query "$1"
fi

创建zabbix代理配置文件 /etc/zabbix/zabbix_agentd.d/userparameter_php-fpm.conf

				
############################################################
# Netkiller PHP-FPM - statistics
#
# Author: Neo Chen <netkiller@msn.com>
# Website: http://www.netkiller.cn
############################################################

# Discovery

# Return statistics
UserParameter=php-fpm.status[*],/srv/zabbix/libexec/php-fpm.xml.sh $1

从zabbix server 运行下面命令测试是否可以正确获得数据

# zabbix_get -s node.netkiller.cn -k 'php-fpm.status[listen-queue-len]'	
128

18.4.7.4. php-fpm 监控参数

php-fpm 可以带参数json、xml、html并且前面三个参数可以分别和full做一个组合。

status 详解
-----
pool – fpm池子名称，大多数为www
process manager – 进程管理方式,值：static, dynamic or ondemand. dynamic
start time – 启动日期,如果reload了php-fpm，时间会更新
start since – 运行时长
accepted conn – 当前池子接受的请求数
listen queue – 请求等待队列，如果这个值不为0，那么要增加FPM的进程数量
max listen queue – 请求等待队列最高的数量
listen queue len – socket等待队列长度
idle processes – 空闲进程数量
active processes – 活跃进程数量
total processes – 总进程数量
max active processes – 最大的活跃进程数量（FPM启动开始算）
max children reached - 大道进程最大数量限制的次数，如果这个数量不为0，那说明你的最大进程数量太小了，请改大一点。
slow requests – 启用了php-fpm slow-log，缓慢请求的数量

full详解
-----
pid – 进程PID，可以单独kill这个进程. 
state – 当前进程的状态 (Idle, Running, …)
start time – 进程启动的日期
start since – 当前进程运行时长
requests – 当前进程处理了多少个请求
request duration – 请求时长（微妙）
request method – 请求方法 (GET, POST, …)
request URI – 请求URI
content length – 请求内容长度 (仅用于 POST)
user – 用户 (PHP_AUTH_USER) (or ‘-’ 如果没设置)
script – PHP脚本 (or ‘-’ if not set)
last request cpu – 最后一个请求CPU使用率。
last request memorythe - 上一个请求使用的内存

				
[root@netkiller tmp]# curl http://localhost/status
pool:                 www
process manager:      dynamic
start time:           25/Nov/2016:10:31:32 +0800
start since:          2337
accepted conn:        191
listen queue:         0
max listen queue:     0
listen queue len:     128
idle processes:       5
active processes:     1
total processes:      6
max active processes: 1
max children reached: 0
slow requests:        0
[root@netkiller tmp]# curl http://localhost/status?full
pool:                 www
process manager:      dynamic
start time:           25/Nov/2016:10:31:32 +0800
start since:          2343
accepted conn:        192
listen queue:         0
max listen queue:     0
listen queue len:     128
idle processes:       5
active processes:     1
total processes:      6
max active processes: 1
max children reached: 0
slow requests:        0

************************
pid:                  27329
state:                Running
start time:           25/Nov/2016:10:31:32 +0800
start since:          2343
requests:             33
request duration:     140
request method:       GET
request URI:          /status?full
content length:       0
user:                 -
script:               -
last request cpu:     0.00
last request memory:  0

************************
pid:                  27330
state:                Idle
start time:           25/Nov/2016:10:31:32 +0800
start since:          2343
requests:             32
request duration:     111
request method:       GET
request URI:          /status?xml
content length:       0
user:                 -
script:               -
last request cpu:     0.00
last request memory:  262144

************************
pid:                  27331
state:                Idle
start time:           25/Nov/2016:10:31:32 +0800
start since:          2343
requests:             32
request duration:     110
request method:       GET
request URI:          /status?xml
content length:       0
user:                 -
script:               -
last request cpu:     0.00
last request memory:  262144

************************
pid:                  27332
state:                Idle
start time:           25/Nov/2016:10:31:32 +0800
start since:          2343
requests:             32
request duration:     106
request method:       GET
request URI:          /status?xml
content length:       0
user:                 -
script:               -
last request cpu:     0.00
last request memory:  262144

************************
pid:                  27333
state:                Idle
start time:           25/Nov/2016:10:31:32 +0800
start since:          2343
requests:             32
request duration:     90
request method:       GET
request URI:          /status
content length:       0
user:                 -
script:               -
last request cpu:     0.00
last request memory:  262144

************************
pid:                  27557
state:                Idle
start time:           25/Nov/2016:10:33:43 +0800
start since:          2212
requests:             31
request duration:     131
request method:       GET
request URI:          /status?xml
content length:       0
user:                 -
script:               -
last request cpu:     0.00
last request memory:  262144

				
[root@netkiller tmp]# curl http://localhost/status?json

{"pool":"www","process manager":"dynamic","start time":1480041092,"start since":2308,"accepted conn":181,"listen queue":0,"max listen queue":0,"listen queue len":128,"idle processes":5,"active processes":1,"total processes":6,"max active processes":1,"max children reached":0,"slow requests":0}

				
[root@netkiller tmp]# curl http://localhost/status?xml
<?xml version="1.0" ?>
<status>
<pool>www</pool>
<process-manager>dynamic</process-manager>
<start-time>1480041092</start-time>
<start-since>2520</start-since>
<accepted-conn>226</accepted-conn>
<listen-queue>0</listen-queue>
<max-listen-queue>0</max-listen-queue>
<listen-queue-len>128</listen-queue-len>
<idle-processes>5</idle-processes>
<active-processes>1</active-processes>
<total-processes>6</total-processes>
<max-active-processes>1</max-active-processes>
<max-children-reached>0</max-children-reached>
<slow-requests>0</slow-requests>

				
[root@netkiller tmp]# curl http://localhost/status?html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head><title>PHP-FPM Status Page</title></head>
<body>
<table>
<tr><th>pool</th><td>www</td></tr>
<tr><th>process manager</th><td>dynamic</td></tr>
<tr><th>start time</th><td>25/Nov/2016:10:31:32 +0800</td></tr>
<tr><th>start since</th><td>2486</td></tr>
<tr><th>accepted conn</th><td>216</td></tr>
<tr><th>listen queue</th><td>0</td></tr>
<tr><th>max listen queue</th><td>0</td></tr>
<tr><th>listen queue len</th><td>128</td></tr>
<tr><th>idle processes</th><td>5</td></tr>
<tr><th>active processes</th><td>1</td></tr>
<tr><th>total processes</th><td>6</td></tr>
<tr><th>max active processes</th><td>1</td></tr>
<tr><th>max children reached</th><td>0</td></tr>
<tr><th>slow requests</th><td>0</td></tr>
</table>
</body></html>

18.4.8. Elasticsearch

获取最新模板以及脚本请访问 https://github.com/oscm/zabbix/tree/master/elasticsearch

首先导入模板 https://github.com/oscm/zabbix/blob/master/elasticsearch/zbx_export_templates.xml

18.4.8.1. 安装采集脚本

一步步运行下面脚本即可

				
# yum install -y python34
# wget https://raw.githubusercontent.com/oscm/zabbix/master/elasticsearch/elasticsearch -P /srv/zabbix/libexec
# chmod +x /srv/zabbix/libexec/elasticsearch
# /srv/zabbix/libexec/elasticsearch indices _all.total.flush.total_time_in_millis
25557

18.4.8.2. 配置Zabbix代理

运行脚本安装代理配置文件

				
# wget https://raw.githubusercontent.com/oscm/zabbix/master/elasticsearch/userparameter_elasticsearch.conf -P /etc/zabbix/zabbix_agentd.d/
# systemctl restart zabbix-agent

测试Zabbix Agent 工作是否正常

# zabbix_get -s 10.47.33.14 -k 'elasticsearch.status[indices,_all.total.flush.total_time_in_millis]'
25557

18.4.9. Postfix

获取最新模板以及脚本请访问 https://github.com/oscm/zabbix/tree/master/postfix

首先导入模板 https://github.com/oscm/zabbix/blob/master/postfix/zbx_export_templates.xml

18.4.9.1. 安装采集脚本

一步步运行下面脚本即可

				
# chmod +r /var/log/maillog
# mkdir -p /srv/zabbix/libexec
# yum install -y logcheck
# wget https://raw.githubusercontent.com/oscm/zabbix/master/postfix/postfix -P /srv/zabbix/libexec
# chmod +x /srv/zabbix/libexec/postfix

测试脚本

# /srv/zabbix/libexec/postfix queue active
1418

18.4.9.2. userparameter_postfix.conf

# wget https://raw.githubusercontent.com/oscm/zabbix/master/postfix/userparameter_postfix.conf -P /etc/zabbix/zabbix_agentd.d/
# systemctl restart zabbix-agent

[root@netkiller ~]# zabbix_get -s 173.24.22.53 -k 'agent.ping'
1
[root@netkiller ~]# zabbix_get -s 173.24.22.53 -k 'postfix[queue,active]'
1140
[root@netkiller ~]# zabbix_get -s 173.24.22.53 -k 'postfix[queue,deferred]'
149 
[root@netkiller ~]# zabbix_get -s 173.24.22.53 -k 'postfix[log,sent]'
10931

18.4.10. TCP stats

curl -s https://raw.githubusercontent.com/oscm/shell/master/monitor/zabbix/zabbix-agent/tcpstats.sh | bash

18.4.10.1. 采集脚本

# zabbix_agentd --test tcp.stats[FIN-WAIT-2]
tcp.stats[FIN-WAIT-2]                         [t|130]

Zabbix

zabbix_get -s 10.24.15.18 -k 'tcp.stats[LISTEN]'

18.4.11. 应用依赖检查

curl -s https://raw.githubusercontent.com/oscm/shell/master/monitor/zabbix/zabbix-agent/dependency.sh | bash

18.4.12. Oracle

18.4.12.1. 采集脚本

创建JDBC配置文件　/srv/zabbix/conf/jdbc.properties

# Oracle 单机环境
jdbc.url=jdbc:oracle:thin:@//172.16.0.10:1521/oral
# Oracle RAC 环境
# jdbc.url=jdbc\:oracle\:thin\:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.5)(PORT=1521))(LOAD_BALANCE=yes)(FAILOVER=ON)(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oral)(FAILOVER_MODE=(TYPE=SESSION)(METHOD=BASIC))))
jdbc.username=neo
jdbc.password=netkiller

18.4.12.2.

原文出处：Netkiller 系列手札
本文作者：陈景峯
转载请与作者联系，同时请务必标明文章原始出处和作者信息及本声明。

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