1.创建用于监控的用户角色：mongo用户的权限按用户角色进行划分
> use admin
> db.getRoles()
> db.createRole(
{ role:"mongostatRole",
privileges:[{resource:{cluster:true},actions:["serverStatus"]}],
roles:[]}
) //建立一个使用mongostat命令权限的用户角色
2.创建系统监控角色
> db.getUsers()
> db.createUser(
{ user:"dbmon",
pwd:"password",
roles:[{role:"mongostatRole",db:"admin"}]}
)
3.编写脚本，mongodb_sts.sh
#!/bin/bash
host="127.0.0.1"
passwd="password"
rst=''
case "$1" in
conn)
rst=`mongostat -n 1 -u dbbak -p $passwd --authenticationDatabase=admin|awk 'NR==2 {print $(NF-1)}'`
;;
dirty)
rst=`mongostat -n 1 -u dbbak -p $passwd --authenticationDatabase=admin|awk -F[ ] 'NR==2 {print $8}'`
;;
used)
rst=`mongostat -n 1 -u dbbak -p $passwd --authenticationDatabase=admin|awk -F[ ] 'NR==2 {print $9}'`
;;
qr)
rst=`mongostat -n 1 -u dbbak -p $passwd --authenticationDatabase=admin|awk -F[ |] 'NR==2 {print $(NF-7)}'`
;;
qw)
rst=`mongostat -n 1 -u dbbak -p $passwd --authenticationDatabase=admin|awk -F[ |] 'NR==2 {print $(NF-6)}'`
;;
res)
res=$(echo "db.serverStatus().mem" | mongo -u dbbak -p $passwd admin|awk -F[, ] '/"resident"/{print $3}')
rst=$[res*1024*1024]
;;
vsize)
resize=$(echo "db.serverStatus().mem" | mongo -u dbbak -p $passwd admin|awk -F[, ] '/"virtual"/{print $3}')
rst=$[resize*1024*1024]
;;
*)
echo "aaaaaaaaaaaa"
# exit 5
esac
if [ -z $rst ];then
echo 0
else
echo $rst
fi
mongodb重启脚本
[root@localhost ~]# cat rest_mongo.sh
#!/bin/sh
#
#chkconfig: 2345 80 90
#description: mongodb
start() {
/usr/local/mongodb/bin/mongod --dbpath=/data02/mongo_db/db --logpath=/var/mongodb/logs/mongo.log --master --oplogSize 4096 --logappend --port=27017 --fork
}
stop() {
/usr/local/mongodb/bin/mongod --dbpath=/data02/mongo_db/db --logpath=/var/mongodb/logs/mongo.log --master --oplogSize 4096 --logappend --port=27017 --fork --shutdown
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
*)
echo $"Usage: $0 {start|stop|restart}"
exit 1
esac
根据连接数来重启mongodb
[root@localhost ~]# cat moni_mongo.sh
#!/bin/sh
set -x
max_num=`/usr/local/mongodb/bin/mongostat -n 1 |awk 'NR==2 {print $(NF-1)}'`
if [ "$max_num" -gt 2000 ]
then
/root/rest_mongo.sh restart
echo "[ `date '%h %d %T'` ] mongodb max number is toooooo many $max_num , all processes restarted" >> /tmp/res_mongo.txt
else
echo "max number is $max_num" >> /tmp/res_mongo.txt
echo "[ `date '%h %d %T'` ] mongodb is oked " >> /tmp/res_mongo.txt
fi
db.currentOp(
{ "active" : true,
"secs_running" : { "$gt" : 1000 },
"ns" : "moblie_cloud.newsdatasource"
}
);
过滤的是运行时间大于1000秒的
根据监控链接返回内容判断是否重启
[root@iZ2zei81ixfndvemhjevnwZ ~]# cat monitor_mongodb.sh
#!/bin/bash
curl -s http://ydy.zhongsou.com/Listener/listen_mongo > /tmp/mongostatus.txt
if [ `grep -c SUCCESSFULLY /tmp/mongostatus.txt` -eq 0 ]; then
/root/rest_mongo.sh restart
echo "[ `date '%h %d %T'` ] mongodb all processes restarted" >> /tmp/res_mongo.txt
fi
[root@iZ2zei81ixfndvemhjevnwZ ~]# cat rest_mongo.sh
#!/bin/sh
#
#chkconfig: 2345 80 90
#description: mongodb
start() {
/data01/mongodb-linux-x86_64-3.0.3/bin/mongod --dbpath=/data02/data89 --logpath=/var/log/mongo.log --logappend --master --port=27017 --fork
}
stop() {
/data01/mongodb-linux-x86_64-3.0.3/bin/mongod --dbpath=/data02/data89 --logpath=/var/log/mongo.log --logappend --master --port=27017 --fork --shutdown
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
*)
echo $"Usage: $0 {start|stop|restart}"
exit 1
esac
