MongoDB 集群分片配置
创建必要的文件目录mkdir -p /usr/local/mongo/shard/s0
mkdir -p /usr/local/mongo/shard/s1mkdir -p /usr/local/mongo/shard/s2mkdir -p /usr/local/mongo/shard/log mongod --shardsvr --port 20000 --dbpath=/usr/local/mongo/shard/s0 --fork --logpath=/usr/local/mongo/shard/log/s0.log --directoryperdbmongod --shardsvr --port 20001 --dbpath=/usr/local/mongo/shard/s1 --fork --logpath=/usr/local/mongo/shard/log/s1.log --directoryperdbmongod --shardsvr --port 20002 --dbpath=/usr/local/mongo/shard/s2 --fork --logpath=/usr/local/mongo/shard/log/s2.log --directoryperdb #Configure Config Server mkdir -p /usr/local/mongo/shard/configmongod --configsvr --port 30000 --dbpath=/usr/local/mongo/shard/config --fork --logpath=/usr/local/mongo/shard/log/config.log --directoryperdb #Start Router Servermongos --port 40000 --configdb localhost:30000 --fork --logpath=/usr/local/mongo/shard/log/route.log mongos> db.runCommand({addshard:"localhost:20000"}){ "shardAdded" : "shard0000", "ok" : 1 }mongos> db.runCommand({addshard:"localhost:20001"}){ "shardAdded" : "shard0001", "ok" : 1 }mongos> db.runCommand({enablesharding:"andylhz"}){ "ok" : 1 }mongos> db.runCommand({shardcollection:"andylhz.users",key:{_id:1}}){ "collectionsharded" : "andylhz.users", "ok" : 1 } 插入测试数据：for (var i = 500001; idb.users.stats()db.users.stats(){ "sharded" : true, "ns" : "andylhz.users", "count" : 500000, "numExtents" : 16, "size" : 48000000, "storageSize" : 80949248, "totalIndexSize" : 16245712, "indexSizes" : { "_id_" : 16245712 }, "avgObjSize" : 96, "nindexes" : 1, "nchunks" : 5, "shards" : { "shard0000" : { "ns" : "andylhz.users", "count" : 130899, "size" : 12566304, "avgObjSize" : 96, "storageSize" : 22507520, "numExtents" : 7, "nindexes" : 1, "lastExtentSize" : 11325440, "paddingFactor" : 1, "systemFlags" : 1, "userFlags" : 0, "totalIndexSize" : 4259696, "indexSizes" : { "_id_" : 4259696 }, "ok" : 1 }, "shard0001" : { "ns" : "andylhz.users", "count" : 369101, "size" : 35433696, "avgObjSize" : 96, "storageSize" : 58441728, "numExtents" : 9, "nindexes" : 1, "lastExtentSize" : 20643840, "paddingFactor" : 1, "systemFlags" : 1, "userFlags" : 0, "totalIndexSize" : 11986016, "indexSizes" : { "_id_" : 11986016 }, "ok" : 1 } }, "ok" : 1}mongos>mongos> use admindb.runCommand({ listshards: 1 })db.runCommand({ listshards: 1 }){ "shards" : [ { "_id" : "shard0000", "host" : "localhost:20000" }, { "_id" : "shard0001", "host" : "localhost:20001" } ], "ok" : 1}mongos> db.runCommand({ isdbgrid:1 })db.runCommand({ isdbgrid:1 }){ "isdbgrid" : 1, "hostname" : "mongo.andylhz.com", "ok" : 1 } mongos> db.runCommand({ addshard:"localhost:20002" })mongos> printShardingStatus()printShardingStatus()--- Sharding Status --- sharding version: { "_id" : 1, "version" : 3 }shards: {"_id" : "shard0000","host" : "localhost:20000" } {"_id" : "shard0001","host" : "localhost:20001" } {"_id" : "shard0002","host" : "localhost:20002" }databases: {"_id" : "admin","partitioned" : false,"primary" : "config" } {"_id" : "andylhz","partitioned" : true,"primary" : "shard0000" } andylhz.users chunks: shard0002 1 shard0000 2 shard0001 2 { "_id" : { $minKey : 1 } } -->> { "_id" : ObjectId("50b9b64ae2b156c230e8f96e") } on : shard0002 Timestamp(4000, 0) { "_id" : ObjectId("50b9b64ae2b156c230e8f96e") } -->> { "_id" : ObjectId("50b9b64be2b156c230e91103") } on : shard0000 Timestamp(4000, 1) { "_id" : ObjectId("50b9b64be2b156c230e91103") } -->> { "_id" : ObjectId("50b9b65fe2b156c230ebc1d5") } on : shard0001 Timestamp(3000, 1) { "_id" : ObjectId("50b9b65fe2b156c230ebc1d5") } -->> { "_id" : ObjectId("50b9b673e2b156c230eeb2d0") } on : shard0001 Timestamp(2000, 4) { "_id" : ObjectId("50b9b673e2b156c230eeb2d0") } -->> { "_id" : { $maxKey : 1 } } on : shard0000 Timestamp(3000, 0)mongos> 本文完
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