公司在IDC机房的一台服务器上部署了MongoDB,由于所存储的业务数据比较重要,所以对MongoDB的监控显得尤为重要!Zabbix监控MongoDB性能的原理:通过echo "db.serverStatus()" | mongo admin 来查看mongodb的状态。
Zabbix监控MongoDB性能,主要监控以下项目:
- 内存使用情况
- 连接数
- 锁
- 刷新写操作到磁盘
- 每秒执行的查询,插入,删除,更新等操作次数
- 每秒访问的索引次数,每秒命中索引的次数
- MongoDB产生的总的页面错误数量
- MongoDB的网络流量状况
下面简单说下操作过程:
1)MongoDB部署机上的配置(即Zabbix_agnet客户端)
mongodb部署机的ip为10.0.11.60,的端口为28000 [root@kevin-mongodb ~]# ps -ef|grep mongoroot 17402 15951 0 01:06 pts/0 00:00:00 grep --color=auto mongomongo 31758 1 0 Sep17 ? 00:25:25 mongod -f /data/mongo_28000/conf/mongo.conf[root@kevin-mongodb ~]# lsof -i:28000COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAMEmongod 31758 mongo 11u IPv4 815849 0t0 TCP *:nxlmd (LISTEN) 连接mongodb的一个权限:库名admin,用户名monitor 密码rrrDE3496eb98S98ccff [root@kevin-mongodb ~]# /bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff......applog:PRIMARY> db.serverStatus(); //查看mongodb的所有ɨβ,��β状态信息 applog:PRIMARY> db.serverStatus().mem;{ "bits" : 64, "resident" : 112, "virtual" : 1480, "supported" : true, "mapped" : 0, "mappedWithJournal" : 0}applog:PRIMARY> db.serverStatus().mem.virtual;1480 applog:PRIMARY> db.serverStatus().opcounters;{ "insert" : 13, "query" : 3272, "update" : 11, "delete" : 0, "getmore" : 94013, "command" : 1024869}applog:PRIMARY> db.serverStatus().opcounters.query;3272 该服务器作为zabbix_agent 客户端,安装目录为/usr/local/zabbix[root@kevin-mongodb ~]# cat /usr/local/zabbix/etc/zabbix_agentd.conf|grep -v "#"|grep -v "^$"PidFile=/usr/local/zabbix/logs/zabbix_agentd.pidLogFile=/usr/local/zabbix/logs/zabbix_agentd.logServer=10.0.8.40ListenPort=10050ServerActive=10.0.8.40Hostname=kevin-mongodbTimeout=10Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/UnsafeUserParameters=1 #注意这个一定要配置成1,表示启动自定义脚本功能! MongoDB的性能监控的自定义脚本[root@kevin-mongodb ~]# cat /usr/local/zabbix/monitor_scripts/MongoDB.sh#!/bin/bashcase $# in 1) output=$(/bin/echo "db.serverStatus().$1" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff|sed -n '4p') ;; 2) output=$(/bin/echo "db.serverStatus().$1.$2" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff|sed -n '4p') ;; 3) output=$(/bin/echo "db.serverStatus().$1.$2.$3" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff|sed -n '4p') ;;esac #check if the output contains "NumberLong"if [[ "$output" =~ "NumberLong" ]];then echo $output|sed -n 's/NumberLong(//p'|sed -n 's/)//p'else echo $outputfi ================================================================================手动执行脚本中的命令,检查下:[root@kevin-mongodb ~]# /bin/echo "db.serverStatus().mem" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccffMongoDB shell version v3.6.7connecting to: mongodb://127.0.0.1:28000/adminMongoDB server version: 3.6.7{ "bits" : 64, "resident" : 112, "virtual" : 1480, "supported" : true, "mapped" : 0, "mappedWithJournal" : 0}bye [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().mem.virtual" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccffMongoDB shell version v3.6.7connecting to: mongodb://127.0.0.1:28000/adminMongoDB server version: 3.6.71480bye [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().mem.virtual" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff|sed -n "4p"1480 [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().opcounters" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff MongoDB shell version v3.6.7connecting to: mongodb://127.0.0.1:28000/adminMongoDB server version: 3.6.7{ "insert" : 13, "query" : 3274, "update" : 11, "delete" : 0, "getmore" : 94163, "command" : 1035856}bye [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().opcounters.query" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccffMongoDB shell version v3.6.7connecting to: mongodb://127.0.0.1:28000/adminMongoDB server version: 3.6.73274bye [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().opcounters.query" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff|sed -n "4p"3274================================================================================ 接着添加zabbix对应的Key文件(这里后面跟"$1.$2",或者后面直接跟"$1 $2 $3")[root@kevin-mongodb ~]# vim /usr/local/zabbix/etc/zabbix_agentd.conf.d/userparameter_MongoDB.confUserParameter=MongoDB.Status[*],/usr/local/zabbix/monitor_scripts/MongoDB.sh $1.$2 重启zabbix_agent[root@kevin-mongodb ~]# pkill -9 zabbix_agent[root@kevin-mongodb ~]# /usr/local/zabbix/sbin/zabbix_agentd -c /usr/local/zabbix/etc/zabbix_agentd.conf 需要注意的是:一定要将/root/.dbshell文件的执行权限授予zabbix,这步很关键!![root@kevin-mongodb ~]# setfacl -Rm u:zabbix:rwx /root 然后在zabbix的服务端进行测试,验证是否能采集到监控数据[root@zabbix01 ~]# /usr/local/zabbix/bin/zabbix_get -s 10.0.11.60 -k mongodb.status[mem.virtual]1480[root@zabbix01 ~]# /usr/local/zabbix/bin/zabbix_get -s 10.0.11.60 -k mongodb.status[opcounters.query]3276
2)Zabbix界面里的配置
登录zabbix界面,将MongoDB监控模板导入到zabbix的模板中,添加到zabbix模板中的名称为"Template MongoDB"。模板下载地址:https://pan.baidu.com/s/1pnaFgmDdwm7GnURB6Gteuw 提取密码:7vt8
然后配置mongodb的zabbix主机监控时,关联到这个导入的模板。监控效果图如下:
========================另外一种方法==========================
除了上面方法之外,还可以使用下面的监控脚本(其他的操作和上面一致):
[root@kevin-mongodb ~]# cat /usr/local/zabbix/monitor_scripts/mongodb.sh #!/bin/bash################################################### Description: zabbix mongodb monitor# Note: Zabbix 3.2# Date: Fri Apr 21 2017# Verion: 1.0# Requirments: mongo, jq, sudo access to mongo_conf.sh## Based on Noe <netkiller@msn.com> script## Change log:# Mon Apr 24, 2017# - Added checks for mongo and jq# - User --eval to fectch data# - fixed json output to comform# - Use jq to parse json https://stedolan.github.io/jq/# - upated index to handle space or comma betwee values# ##################################################DB_HOST=127.0.0.1DB_PORT=28000DB_USERNAME=monitorDB_PASSWORD=rrrDE3496eb98S98ccffMONGO=`which mongo`JQ=`which jq`EXIT_ERROR=1EXIT_OK=0if [ ! -x "$MONGO" ] ; then echo "mongo not found" exit $EXIT_ERRORelif [ ! -x "$JQ" ] ; then echo "jq not found" exit $EXIT_ERRORelif [ $# -eq 0 ] ; then echo "No values pass" exit $EXIT_ERRORfiindex=.$(echo $@ | sed 's/[ ,]/./g')#keys=$1'.'$2#echo $keysMONGO_CMD="$MONGO --host ${DB_HOST:-localhost} --port ${DB_PORT:-27017} --authenticationDatabase=admin --quiet"[[ "$DB_USERNAME" ]] && MONGO_CMD="${MONGO_CMD} --username ${DB_USERNAME}"[[ "$DB_PASSWORD" ]] && MONGO_CMD="${MONGO_CMD} --password ${DB_PASSWORD}"output=$( $MONGO_CMD <<< "db.runCommand( { serverStatus: 1} )" |\ sed -e 's/NumberLong(\(.*\))/\1/ s/ISODate(\(.*\))/\1/ s/ObjectId(\(.*\))/\1/ s/Timestamp(.*)/"&"/ s/\(BinData(.*\)"\(.*\)")/"\1\2)"/ s/"\([0-9]*\)"/\1/' )mongo_status=${PIPESTATUS[0]}if [ $mongo_status -ne $EXIT_OK ] ; then echo "mongo exec error" exit $EXIT_ERRORfivalue=$(echo $output | jq $index 2>/dev/null)#echo $output | jq $index 2>/dev/null#value=$(echo $output |jq .$keys 2>/dev/null)#jq_status=$?echo $value 手动测试:[root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh mem.virtual 1480[root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh mem,virtual1480[root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh opcounters.query3283[root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh opcounters,query3283添加zabbix对应的Key文件[root@kevin-mongodb ~]# cat /usr/local/zabbix/etc/zabbix_agentd.conf.d/userparameter_mongodb.conf ############################################################# MongoDB - statistics## Author: Neo Chen <netkiller@msn.com># Website: http://www.netkiller.cn############################################################# Discovery# Return MongoDB statistics#UserParameter=mongodb.status[*],/bin/bash /usr/local/zabbix/monitor_scripts/mongodb.sh $1 $2 $3 $4 $5UserParameter=mongodb.status[*], /usr/local/zabbix/monitor_scripts/mongodb.sh $1 $2 在zabbix服务端验证是否能采集到监控数据的key[root@zabbix01 ~]# /usr/local/zabbix/bin/zabbix_get -s 10.0.11.60 -k mongodb.status[mem,virtual] 1480[root@zabbix01 ~]# /usr/local/zabbix/bin/zabbix_get -s 10.0.11.60 -k mongodb.status[opcounters,query]3283登录zabbix界面,导入模板,这个模板下载地址:https://pan.baidu.com/s/1lZTchsXZmGmxTutaIMVzwg提取密码:ky1s