公司在IDC機房的一臺伺服器上部署了MongoDB,由於所儲存的業務資料比較重要,所以對MongoDB的監控顯得尤為重要!Zabbix監控MongoDB效能的原理:通過echo "db.serverStatus()" | mongo admin 來檢視mongodb的狀態。
Zabbix監控MongoDB效能,主要監控以下專案:
- 記憶體使用情況
- 連線數
- 鎖
- 重新整理寫操作到磁碟
- 每秒執行的查詢,插入,刪除,更新等操作次數
- 每秒訪問的索引次數,每秒命中索引的次數
- MongoDB產生的總的頁面錯誤數量
- MongoDB的網路流量狀況
下面簡單說下操作過程:
1)MongoDB部署機上的配置(即Zabbix_agnet客戶端)
mongodb部署機的ip為10.0.11.60,的埠為28000 [root@kevin-mongodb ~]# ps -ef|grep mongo root 17402 15951 0 01:06 pts/0 00:00:00 grep --color=auto mongo mongo 31758 1 0 Sep17 ? 00:25:25 mongod -f /data/mongo_28000/conf/mongo.conf [root@kevin-mongodb ~]# lsof -i:28000 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME mongod 31758 mongo 11u IPv4 815849 0t0 TCP *:nxlmd (LISTEN) 連線mongodb的一個許可權:庫名admin,使用者名稱monitor 密碼rrrDE3496eb98S98ccff [root@kevin-mongodb ~]# /bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff ...... applog:PRIMARY> db.serverStatus(); //檢視mongodb的所有狀態資訊 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 該伺服器作為zabbix_agent 客戶端,安裝目錄為/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.pid LogFile=/usr/local/zabbix/logs/zabbix_agentd.log Server=10.0.8.40 ListenPort=10050 ServerActive=10.0.8.40 Hostname=kevin-mongodb Timeout=10 Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/ UnsafeUserParameters=1 #注意這個一定要配置成1,表示啟動自定義指令碼功能! MongoDB的效能監控的自定義指令碼 [root@kevin-mongodb ~]# cat /usr/local/zabbix/monitor_scripts/MongoDB.sh #!/bin/bash case $# in 1) output=$(/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 $output fi ================================================================================ 手動執行指令碼中的命令,檢查下: [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().mem" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff MongoDB shell version v3.6.7 connecting to: mongodb://127.0.0.1:28000/admin MongoDB 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 -prrrDE3496eb98S98ccff MongoDB shell version v3.6.7 connecting to: mongodb://127.0.0.1:28000/admin MongoDB server version: 3.6.7 1480 bye [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 v3.6.7 connecting to: mongodb://127.0.0.1:28000/admin MongoDB 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 -prrrDE3496eb98S98ccff MongoDB shell version v3.6.7 connecting to: mongodb://127.0.0.1:28000/admin MongoDB server version: 3.6.7 3274 bye [root@kevin-mongodb ~]# /bin/echo "db.serverStatus().opcounters.query" |/bin/mongo 127.0.0.1:28000/admin -umonitor -prrrDE3496eb98S98ccff|sed -n "4p" 3274 ================================================================================ 接著新增zabbix對應的Key檔案(這裡後面跟"$1.$2",或者後面直接跟"$1 $2 $3") [root@kevin-mongodb ~]# vim /usr/local/zabbix/etc/zabbix_agentd.conf.d/userparameter_MongoDB.conf UserParameter=MongoDB.Status[*],/usr/local/zabbix/monitor_scripts/MongoDB.sh $1.$2 重啟zabbix_agent [root@kevin-mongodb ~]# pkill -9 zabbix_agent [root@kevin-mongodb ~]# /usr/local/zabbix/sbin/zabbix_agentd -c /usr/local/zabbix/etc/zabbix_agentd.conf 需要注意的是:一定要將/root/.dbshell檔案的執行許可權授予zabbix,這步很關鍵!! [root@kevin-mongodb ~]# setfacl -Rm u:zabbix:rwx /root 然後在zabbix的服務端進行測試,驗證是否能採集到監控資料 [root@zabbix01 ~]# /usr/local/zabbix/bin/zabbix_get -s 10.0.11.60 -k mongodb.status[mem.virtual] 1480 [root@zabbix01 ~]# /usr/local/zabbix/bin/zabbix_get -s 10.0.11.60 -k mongodb.status[opcounters.query] 3276
2)Zabbix介面裡的配置
登入zabbix介面,將MongoDB監控模板匯入到zabbix的模板中,新增到zabbix模板中的名稱為"Template MongoDB"。模板下載地址:https://pan.baidu.com/s/1pnaFgmDdwm7GnURB6Gteuw 提取密碼:7vt8
然後配置mongodb的zabbix主機監控時,關聯到這個匯入的模板。監控效果圖如下:
========================另外一種方法==========================
除了上面方法之外,還可以使用下面的監控指令碼(其他的操作和上面一致):
[root@kevin-mongodb ~]# cat /usr/local/zabbix/monitor_scripts/mongodb.sh #!/bin/bash ################################################## # Description: zabbix mongodb monitor # Note: Zabbix 3.2 # Date: Fri Apr 21 2017 # Verion: 1.0 # Requirments: mongo, jq, sudo access to mongo_conf.sh # # Based on Noe <netkiller@msn.com> script # # Change log: # Mon Apr 24, 2017 # - Added checks for mongo and jq # - User --eval to fectch data # - fixed json output to comform # - Use jq to parse json https://stedolan.github.io/jq/ # - upated index to handle space or comma betwee values # ################################################## DB_HOST=127.0.0.1 DB_PORT=28000 DB_USERNAME=monitor DB_PASSWORD=rrrDE3496eb98S98ccff MONGO=`which mongo` JQ=`which jq` EXIT_ERROR=1 EXIT_OK=0 if [ ! -x "$MONGO" ] ; then echo "mongo not found" exit $EXIT_ERROR elif [ ! -x "$JQ" ] ; then echo "jq not found" exit $EXIT_ERROR elif [ $# -eq 0 ] ; then echo "No values pass" exit $EXIT_ERROR fi index=.$(echo $@ | sed 's/[ ,]/./g') #keys=$1'.'$2 #echo $keys MONGO_CMD="$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 $EXIT_ERROR fi value=$(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 手動測試: [root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh mem.virtual 1480 [root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh mem,virtual 1480 [root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh opcounters.query 3283 [root@kevin-mongodb ~]# /usr/local/zabbix/monitor_scripts/mongodb.sh opcounters,query 3283 新增zabbix對應的Key檔案 [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 $5 UserParameter=mongodb.status[*], /usr/local/zabbix/monitor_scripts/mongodb.sh $1 $2 在zabbix服務端驗證是否能採集到監控資料的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 登入zabbix介面,匯入模板,這個模板下載地址:https://pan.baidu.com/s/1lZTchsXZmGmxTutaIMVzwg 提取密碼:ky1s