MongoDB 安装、主从配置、以及监控
1、安装#添加安装源name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
#yum 安装
yum install -y mongo-10gen mongo-10gen-server
#添加到开机自动启动chkconfig mongod on
2、启动，停止，重启命令service mongod start
service mongod stop
service mongod restart
3、测试使用mongoperf 查看磁盘IO性能#mongoperf -husage:mongoperf < myjsonconfigfile
{
nThreads:<n>, // number of threads (default 1)fileSizeMB:<n>, // test file size (default 1MB)sleepMicros:<n>, // pause for sleepMicros/nThreads between each operation (default 0)mmf:<bool>, // if true do i/o's via memory mapped files (default false)r:<bool>, // do reads (default false)w:<bool>, // do writes (default false)recSizeKB:<n>, // size of each write (default 4KB)syncDelay:<n> // secs between fsyncs, like --syncdelay in mongod. (default 0/never)}进行测试：# cat <jsonfile{nThreads:1,fileSizeMB:1,sleepMicros:0,mmf:'true',r:'true',w:'true',recSizeKB:4,syncDelay:0}
#参考Real world MongoDB benchmarks with benchRunhttps://blog.serverdensity.com/real-world-mongodb-benchmarks-with-benchrun/
运行mongo#mongo>db.foo.insert( { _id : 1 } )>ops = [{ op :"findOne", ns :"test.foo", query : { _id : 1 } }, { op :"update", ns :"test.foo", query : { _id : 1 } , update : { $inc : { x : 1 } } } ][
{
"op":"findOne",
"ns":"test.foo",
"query": {
"_id": 1
}
},
{
"op":"update",
"ns":"test.foo",
"query": {
"_id": 1
},
"update": {
"$inc": {
"x": 1
}
}
}
>for( x = 1; x<=128; x*=2){... res = benchRun( { parallel : x ,
... seconds : 5 ,
... ops : ops
... } )
... print("threads: "+ x +"\t queries/sec: "+ res.query )
... }threads: 1 queries/sec: 7886.8threads: 2 queries/sec: 12786.2threads: 4 queries/sec: 14891.2threads: 8 queries/sec: 16361.2threads: 16 queries/sec: 19811.6threads: 32 queries/sec: 18343.8threads: 64 queries/sec: 26470.4threads: 128 queries/sec: 36110.4
4、主从配置
主php1172.17.16.7
从mysql1172.17.16.21
#两个服务器修改hosts：172.17.16.7 php1.domain.com
#主上添加配置：vim /etc/mongod.conf
master = truesource = php1.dapingmu.conf
#从上添加配置：#vim /etc/mongod.confslave = truesource = php1.dapingmu.com
#查看主从，使用robomongo或直接在服务器上使用命令行工具#主服务器上#mongo>use local>db.slaves.find()/* 0 */{"_id" : ObjectId("526b44843f12574552e6ce48"),"config" : {"host" : "172.17.16.21:29025","upgradeNeeded" : true},"ns" : "local.oplog.$main","syncedTo" : Timestamp(1382870579, 1)}
5、监控管理
#mongostatThe mongostat utility provides a quick overview of the status of a currently running mongod or mongosinstance. mongostat is functionally similar to the UNIX/Linux file system utility vmstat, but provides data regarding mongod and mongos instances.#mongotopmongotop provides a method to track the amount of time a MongoDB instance spends reading and writing data. mongotop provides statistics on a per-collection level. By default, mongotop returns values every second.
#mongodb连接管理客户端robomongo下载地址：www.robomongo.org
#MMS管理管理地址：https://mms.mongodb.com
需要安装pymongo并安装mms agent1、安装Python 2.6+2、安装PyMongo3、下载：mms-monitoring-agent
wget https://mms.mongodb.com/settings/mmsAgent/15f01bbee11f24c1c5b2b31fab30c406/mms-monitoring-agent-（MMS-Group-Name).tar.gz4、解压并运行$ nohup python agent.py >> /YOUR_LOG_DIRECTORY/agent.log 2>&1 &5、添加一个Mongo Node即可登录MMS管理地址查看MongoDB 节点监控信息图表
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