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1. 

   Ask_Maclean_liu_Oracle May 6, 2015

   for (var i = 1; i <= 50000; i++) { db.dbdao.insert( { x : i , name: “dbdao.com” , name1:”dbdao.com”, name2:”dbdao.com”, name3:”dbdao.com”} )}root@dbdao-Inspiron-560s:~# mongodump –out dbdaoconnected to: 127.0.0.1Wed Apr 8 03:41:12.499 all dbsWed Apr 8 03:41:12.500 DATABASE: test to dbdao/testWed Apr 8 03:41:12.513 test.system.indexes to dbdao/test/system.indexes.bsonWed Apr 8 03:41:12.514 1 objectsWed Apr 8 03:41:12.514 test.dbdao to dbdao/test/dbdao.bsonWed Apr 8 03:41:12.564 50000 objectsWed Apr 8 03:41:12.564 Metadata for test.dbdao to dbdao/test/dbdao.metadata.jsonsudo apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv 7F0CEB10echo “deb http://repo.mongodb.org/apt/ubuntu “$(lsb_release -sc)”/mongodb-org/3.0 multiverse” | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.listsudo apt-get updatesudo apt-get install -y mongodb-orgsudo service mongod startroot@dbdao-Inspiron-560s:~# sudo apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv 7F0CEB10Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –homedir /tmp/tmp.08FbwQ9cDM –no-auto-check-trustdb –trust-model always –keyring /etc/apt/trusted.gpg –primary-keyring /etc/apt/trusted.gpg –keyserver hkp://keyserver.ubuntu.com:80 –recv 7F0CEB10gpg: requesting key 7F0CEB10 from hkp server keyserver.ubuntu.comgpg: key 7F0CEB10: public key “Richard Kreuter ” importedgpg: Total number processed: 1gpg: imported: 1 (RSA: 1)root@dbdao-Inspiron-560s:~# echo “deb http://repo.mongodb.org/apt/ubuntu “$(lsb_release -sc)”/mongodb-org/3.0 multiverse” | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.listdeb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiversesudo apt-get updatesudo apt-get install -y mongodb-org sudo mkdir -p /m01/mondata sudo chown mongodb:mongodb /m01/mondata sudo echo “storageEngine = wiredTiger” >> /etc/mongod.conf 修改 sudo vi /etc/mongod.conf dbpath=/var/lib/mongodb 修改为 dbpath=/m01/mondataroot@dbdao-Inspiron-560s:/var/lib/mongodb# sudo service mongod restartmongod start/running, process 6983root@dbdao-Inspiron-560s:/var/lib/mongodb# sudo service mongod statusmongod start/running, process 6983root@dbdao-Inspiron-560s:/m01/mondata# cd /m01/mondata/root@dbdao-Inspiron-560s:/m01/mondata# ls -ltotal 132-rw-r–r– 1 mongodb nogroup 16384 Apr 8 04:03 collection-0-1898341878753293233.wt-rw-r–r– 1 mongodb nogroup 16384 Apr 8 04:03 index-1-1898341878753293233.wtdrwxr-xr-x 2 mongodb nogroup 4096 Apr 8 04:02 journal-rw-r–r– 1 mongodb nogroup 16384 Apr 8 04:03 _mdb_catalog.wt-rwxr-xr-x 1 mongodb nogroup 5 Apr 8 04:02 mongod.lock-rw-r–r– 1 mongodb nogroup 16384 Apr 8 04:04 sizeStorer.wt-rw-r–r– 1 mongodb nogroup 95 Apr 8 04:02 storage.bson-rw-r–r– 1 mongodb nogroup 46 Apr 8 04:02 WiredTiger-rw-r–r– 1 mongodb nogroup 495 Apr 8 04:02 WiredTiger.basecfg-rw-r–r– 1 mongodb nogroup 21 Apr 8 04:02 WiredTiger.lock-rw-r–r– 1 mongodb nogroup 874 Apr 8 04:04 WiredTiger.turtle-rw-r–r– 1 mongodb nogroup 40960 Apr 8 04:04 WiredTiger.wt通过命令 echo “db.serverStatus()”| mongo|grep wiredTiger 可以确认是否启用了wiredTigerroot@dbdao-Inspiron-560s:/m01/mondata# echo “db.serverStatus()”| mongo|grep wiredTiger “name” : “wiredTiger” “wiredTiger” : {使用mongorestore 导入之前导出的数据root@dbdao-Inspiron-560s:~# mongorestore dbdao/2015-04-08T04:12:18.779-0400 building a list of dbs and collections to restore from dbdao/ dir2015-04-08T04:12:18.779-0400 reading metadata file from dbdao/test/dbdao.metadata.json2015-04-08T04:12:18.780-0400 restoring test.dbdao from file dbdao/test/dbdao.bson2015-04-08T04:12:19.904-0400 restoring indexes for collection test.dbdao from metadata2015-04-08T04:12:19.905-0400 finished restoring test.dbdao2015-04-08T04:12:19.905-0400 doneroot@dbdao-Inspiron-560s:~# mongoMongoDB shell version: 3.0.2connecting to: testServer has startup warnings: 2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] 2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is ‘always’.2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] ** We suggest setting it to ‘never’2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] 2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is ‘always’.2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] ** We suggest setting it to ‘never’2015-04-08T04:02:11.903-0400 I CONTROL [initandlisten] > db.dbdao.count();50000修改/etc/security/limits.conf 加入如下内容 ： sudo vi /etc/security/limits.conf* soft nproc 1024root soft nproc unlimited* soft nofile 64000 # 加入的内容* hard nofile 64000 # 加入的内容修改/etc/rc.local 如下sudo vi /etc/rc.localtouch /var/lock/subsys/localif test -f /sys/kernel/mm/transparent_hugepage/enabled; then # ↑加入的内容 echo never > /sys/kernel/mm/transparent_hugepage/enabled # │fi # │if test -f /sys/kernel/mm/transparent_hugepage/defrag; then # │ echo never > /sys/kernel/mm/transparent_hugepage/defrag # │fi 修改 /etc/init/mongod.conf ， 加入 vi /etc/init/mongod.conf在pre-start script 这一行下面加入下面的内容 if [ -f /sys/kernel/mm/transparent_hugepage/enabled ]; then echo never > /sys/kernel/mm/transparent_hugepage/enabled fi if [ -f /sys/kernel/mm/transparent_hugepage/defrag ]; then echo never > /sys/kernel/mm/transparent_hugepage/defrag fi之后 udo service mongod restart

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2. MongoDB 配置一个Sharding Cluster 基于Ubuntu – Oracle数据库数据恢复、性能优化来问问AskMaclean – 诗檀软件旗下网站 May 7, 2015

   […] 注意确保在所有上述Server上已经安装了MongoDB 3.0以上版本，否则首先安装MongoDB，要在Ubuntu上安装MongoDB可以按照这个教程，《升级MongoDB到3.0.2并启用wiredTiger存储引擎 基于ubuntu 14.04》，http://www.askmaclea… […]

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3. MongoDB 配置Sharding Cluster 基于Ubuntu – Oracle数据库数据恢复、性能优化来问问AskMaclean – 诗檀软件旗下网站 May 7, 2015

   […] 注意确保在所有上述Server上已经安装了MongoDB 3.0以上版本，否则首先安装MongoDB，要在Ubuntu上安装MongoDB可以按照这个教程，《升级MongoDB到3.0.2并启用wiredTiger存储引擎 基于ubuntu 14.04》，http://www.askmaclea… […]

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