新建目錄的操做要在三臺機器中進行,爲配置服務器新建數據目錄和日誌目錄linux
mkdir -p $MONGODB_HOME/config/data mkdir -p $MONGODB_HOME/config/log
爲分片服務器新建數據目錄和日誌目錄git
mkdir -p $MONGODB_HOME/shared1/data mkdir -p $MONGODB_HOME/shared1/log mkdir -p $MONGODB_HOME/shared2/data mkdir -p $MONGODB_HOME/shared2/log mkdir -p $MONGODB_HOME/shared3/data mkdir -p $MONGODB_HOME/shared3/log
爲路由服務器新建數據目錄和日誌目錄(路由服務器只用到日誌目錄)github
mkdir -p $MONGODB_HOME/mongos/log
在三臺機器上作相同的配置web
#vim $MONGODB_HOME/conf/config.cfg
mongodb
## 配置文件內容 pidfilepath=/root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/config/log/configsrv.pid dbpath=/root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/config/data logpath=/root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/config/log/congigsrv.log logappend = true bind_ip = 0.0.0.0 port = 21000 fork = true #declare this is a config db of a cluster; configsvr = true #副本集名稱 replSet=configs #設置最大鏈接數 maxConns=20000
啓動三臺機器上的mongo實例,
mongod -f $MONGODB_HOME/conf/config.cfg
數據庫
登陸任意一臺config服務器,進行初始化vim
#mongo --port 21000 config = { "_id": "configs", "members": [ { "_id": 0, "host": "192.168.102.3:21000" }, { "_id": 1, "host": "192.168.102.4:21000" }, { "_id": 2, "host": "192.168.102.5:21000" } ] }
每一個分片服務都是有3臺機器上的複製集組成,因此如下每一個分片服務的配置要在三臺機器上進行相同的操做服務器
新建配置文件app
#vim $MONGODB_HOME/conf/shared1.cfg
測試
#配置文件內容 pidfilepath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared1/log/shared1.pid dbpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared1/data logpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared1/log/shared1.log logappend = true bind_ip = 0.0.0.0 port = 27001 fork = true #打開web監控 httpinterface=true rest=true #副本集名稱 replSet=shared1 #declare this is a shard db of a cluster; shardsvr = true #設置最大鏈接數 maxConns=20000
而後啓動每一個機器上的分片服務,
mongod -f $MONGODB_HOME/conf/shared1.cfg
登陸任意分片服務器,進行初始化
#mongo --port 27001 config={ "_id": "shared1", "members": [ { "_id": 0, "host": "192.168.102.3:27001" }, { "_id": 1, "host": "192.168.102.4:27001" }, { "_id": 2, "host": "192.168.102.5:27001", "arbiterOnly": true } ] }
新建配置文件
#vim $MONGODB_HOME/conf/shared2.cfg pidfilepath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared2/log/shared2.pid dbpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared2/data logpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared2/log/shared2.log logappend = true bind_ip = 0.0.0.0 port = 27002 fork = true #打開web監控 httpinterface=true rest=true #副本集名稱 replSet=shared2 #declare this is a shard db of a cluster; shardsvr = true #設置最大鏈接數 maxConns=20000
而後啓動每一個機器上的分片服務,
mongod -f $MONGODB_HOME/conf/shared2.cfg
登陸任意分片服務器,進行初始化
#mongo --port 27002 config={ "_id": "shared2", "members": [ { "_id": 0, "host": "192.168.102.3:27002" }, { "_id": 1, "host": "192.168.102.4:27002", "arbiterOnly": true }, { "_id": 2, "host": "192.168.102.5:27002" } ] }
新建配置文件
#vim $MONGODB_HOME/conf/shared3.cfg pidfilepath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared3/log/shared3.pid dbpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared3/data logpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/shared3/log/shared3.log logappend = true bind_ip = 0.0.0.0 port = 27003 fork = true #打開web監控 httpinterface=true rest=true #副本集名稱 replSet=shared3 #declare this is a shard db of a cluster; shardsvr = true #設置最大鏈接數 maxConns=20000
而後啓動每一個機器上的分片服務,
mongod -f $MONGODB_HOME/conf/shared3.cfg
登陸任意分片服務器,進行初始化
#mongo --port 27003 config={ "_id": "shared3", "members": [ { "_id": 0, "host": "192.168.102.3:27003" }, { "_id": 1, "host": "192.168.102.4:27003", "arbiterOnly": true }, { "_id": 2, "host": "192.168.102.5:27003" } ] }
路由服務器一樣也是要在三臺機器上作相同的配置和操做
pidfilepath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/mongos/log/mongos.pid logpath = /root/softWare/mongodb3.4.7/mongodb-linux-x86_64-debian71-3.4.7/mongos/log/mongos.log logappend = true bind_ip = 0.0.0.0 port = 20000 fork = true #監聽的配置服務器,只能有1個或者3個 configs爲配置服務器的副本集名字 configdb = configs/192.168.102.3:21000,192.168.102.4:21000,192.168.102.5:21000 #設置最大鏈接數 maxConns=20000
#mongo --port 20000 use admin sh.addShard("shared1/192.168.102.3:27001,192.168.102.4:27001,192.168.102.5:27001") sh.addShard("shared2/192.168.102.3:27002,192.168.102.4:27002,192.168.102.5:27002") sh.addShard("shared3/192.168.102.3:27003,192.168.102.4:27003,192.168.102.5:27003")
#指定testdb分片生效 db.runCommand( { enablesharding :"testdb"}); #指定數據庫裏須要分片的集合和片鍵 db.runCommand( { shardcollection : "testdb.table1",key : {id: 1} } )
登陸mongos進行數據的插入。具體過程以下:
mongo 192.168.102.3:20000 #使用testdb use testdb; #插入測試數據 for (var i = 1; i <= 100000; i++) db.table1.save({id:i,"test1":"testval1"}); #查看分片狀況以下,部分無關信息省掉了 db.table1.stats(); { "sharded" : true, "ns" : "testdb.table1", "count" : 100000, "numExtents" : 13, "size" : 5600000, "storageSize" : 22372352, "totalIndexSize" : 6213760, "indexSizes" : { "_id_" : 3335808, "id_1" : 2877952 }, "avgObjSize" : 56, "nindexes" : 2, "nchunks" : 3, "shards" : { "shard1" : { "ns" : "testdb.table1", "count" : 42183, "size" : 0, ... "ok" : 1 }, "shard2" : { "ns" : "testdb.table1", "count" : 38937, "size" : 2180472, ... "ok" : 1 }, "shard3" : { "ns" : "testdb.table1", "count" :18880, "size" : 3419528, ... "ok" : 1 } }, "ok" : 1 }
分片的key的設置會影響每一個分片的數據量。
啓動集羣的順序是:
1,啓動配置服務。
2,啓動分片服務。
3,啓動路由服務。
JackerWang 於2017年8月29日上午的廣州