MongoDB\u7684auto-sharding\u529f\u80fd\u662f\u6307mongodb\u901a\u8fc7mongos\u81ea\u52a8\u5efa\u7acb\u4e00\u4e2a\u6c34\u5e73\u6269\u5c55\u7684\u6570\u636e\u5e93\u96c6\u7fa4\u7cfb\u7edf\uff0c\u5c06\u6570\u636e\u5e93\u5206\u8868\u5b58\u50a8\u5728sharding\u7684\u5404\u4e2a\u8282\u70b9\u4e0a\u3002<\/p>\n
\u901a\u8fc7\u628aSharding\u548cReplica Sets\u76f8\u7ed3\u5408\uff0c\u53ef\u4ee5\u642d\u5efa\u4e00\u4e2a\u5206\u5e03\u5f0f\u7684\uff0c\u9ad8\u53ef\u7528\u6027\uff0c\u81ea\u52a8\u6c34\u5e73\u6269\u5c55\u7684\u96c6\u7fa4\u3002<\/p>\n
\u8981\u6784\u5efaMongoDB Sharding Cluster\uff0c\u9700\u8981\u4e09\u79cd\u89d2\u8272\uff1a<\/p>\n
Shard Server: mongod \u5b9e\u4f8b\uff0c \u4f7f\u7528 Replica Sets\uff0c\u786e\u4fdd\u6bcf\u4e2a\u6570\u636e\u8282\u70b9\u90fd\u5177\u6709\u5907\u4efd\u3001\u81ea\u52a8\u5bb9\u9519\u8f6c\u79fb\u3001\u81ea\u52a8\u6062\u590d\u80fd\u529b\u3002\u7528\u4e8e\u5b58\u50a8\u5b9e\u9645\u7684\u6570\u636e\u5757\uff0c\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\u4e00\u4e2ashard server\u89d2\u8272\u53ef\u7531\u51e0\u53f0\u673a\u5668\u7ec4\u4e2a\u4e00\u4e2arelica set\u627f\u62c5\uff0c\u9632\u6b62\u4e3b\u673a\u5355\u70b9\u6545\u969c<\/p>\n
Config Server: mongod \u5b9e\u4f8b\uff0c\u4f7f\u7528 3 \u4e2a\u914d\u7f6e\u670d\u52a1\u5668\uff0c\u786e\u4fdd\u5143\u6570\u636e\u5b8c\u6574\u6027(two-phase commit)\u3002\u5b58\u50a8\u4e86\u6574\u4e2a Cluster Metadata\uff0c\u5176\u4e2d\u5305\u62ec chunk \u4fe1\u606f\u3002<\/p>\n
Route Server: mongos \u5b9e\u4f8b\uff0c\u914d\u5408 LVS\uff0c\u5b9e\u73b0\u8d1f\u8f7d\u5e73\u8861\uff0c\u63d0\u9ad8\u63a5\u5165\u6027\u80fd(high performance)\u3002\u524d\u7aef\u8def\u7531\uff0c\u5ba2\u6237\u7aef\u7531\u6b64\u63a5\u5165\uff0c\u4e14\u8ba9\u6574\u4e2a\u96c6\u7fa4\u770b\u4e0a\u53bb\u50cf\u5355\u4e00\u6570\u636e\u5e93\uff0c\u524d\u7aef\u5e94\u7528\u53ef\u4ee5\u900f\u660e\u4f7f\u7528\u3002<\/p>\n
\u73af\u5883\u5982\u4e0b\uff1a<\/p>\n
192.168.198.131<\/p>\n
shard1:10001<\/p>\n
shard2:10002<\/p>\n
shard3:10003<\/p>\n
config1:20000<\/p>\n
192.168.198.129<\/p>\n
shard1:10001<\/p>\n
shard2:10002<\/p>\n
shard3:10003<\/p>\n
config2:20000<\/p>\n
192.168.198.132<\/p>\n
shard1:10001<\/p>\n
shard2:10002<\/p>\n
shard3:10003<\/p>\n
config3:20000<\/p>\n
192.168.198.133<\/p>\n
mongos:27017<\/p>\n
\u5206\u522b\u5728\u4e09\u53f0\u670d\u52a1\u5668\u4e0a\u5b89\u88c5mongod\u670d\u52a1\uff0c\u5b89\u88c5\u5982\u4e0b\uff1a<\/p>\n
# wget http:\/\/fastdl.mongodb.org\/linux\/mongodb-linux-x86_64-2.0.3.tgz<\/p>\n
# tar zxvf mongodb-linux-x86_64-2.0.3.tgz -C ..\/software\/<\/p>\n
# ln -s mongodb-linux-x86_64-2.0.3 \/usr\/local\/mongodb<\/p>\n
# useradd mongodb<\/p>\n
# mkdir -p \/data\/mongodb\/shard1<\/p>\n
# mkdir -p \/data\/mongodb\/shard2<\/p>\n
# mkdir -p \/data\/mongodb\/shard3<\/p>\n
# mkdir -p \/data\/mongodb\/config1<\/p>\n
\u914d\u7f6eshard1\u7684replica set<\/p>\n
192.168.198.131<\/p>\n
# cd \/usr\/local\/mongodb\/bin<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard1 \u2013port 10001 \u2013dbpath \/data\/mongodb\/shard1 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard1\/shard1.log \u2013logappend \u2013fork<\/p>\n
192.168.198.129<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard1 \u2013port 10001 \u2013dbpath \/data\/mongodb\/shard1 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard1\/shard1.log \u2013logappend \u2013fork<\/p>\n
192.168.198.132<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard1 \u2013port 10001 \u2013dbpath \/data\/mongodb\/shard1 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard1\/shard1.log \u2013logappend \u2013fork<\/p>\n
\u8fde\u63a5\u5230192.168.198.131<\/p>\n
# .\/mongo \u2013port 10001<\/p>\n
> config={_id:”shard1\u2033,members:[<\/p>\n
… {_id:0,host:”192.168.198.131:10001″},<\/p>\n
… {_id:1,host:”192.168.198.129:10001″},<\/p>\n
… {_id:2,host:”192.168.198.132:10001″}]<\/p>\n
\u2026 }<\/p>\n
> rs.initiate(config)<\/p>\n
{<\/p>\n
“info” : “Config now saved locally. Should come online in about a minute.”,<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
PRIMARY> rs.status()<\/p>\n
{<\/p>\n
“set” : “shard1\u2033,<\/p>\n
“date” : ISODate(“2012-03-02T02:37:55Z”),<\/p>\n
“myState” : 1,<\/p>\n
“members” : [<\/p>\n
{<\/p>\n
“_id” : 0,<\/p>\n
“name” : “192.168.198.131:10001”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 1,<\/p>\n
“stateStr” : “PRIMARY”,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330655827000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T02:37:07Z”),<\/p>\n
“self” : true<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 1,<\/p>\n
“name” : “192.168.198.129:10001”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 2,<\/p>\n
“stateStr” : “SECONDARY”,<\/p>\n
“uptime” : 36,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330655827000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T02:37:07Z”),<\/p>\n
“lastHeartbeat” : ISODate(“2012-03-02T02:37:53Z”),<\/p>\n
“pingMs” : 0<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 2,<\/p>\n
“name” : “192.168.198.132:10001”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 2,<\/p>\n
“stateStr” : “SECONDARY”,<\/p>\n
“uptime” : 36,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330655827000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T02:37:07Z”),<\/p>\n
“lastHeartbeat” : ISODate(“2012-03-02T02:37:53Z”),<\/p>\n
“pingMs” : 466553<\/p>\n
}<\/p>\n
],<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
\u914d\u7f6eshard2\u7684replica set<\/p>\n
192.168.198.129<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard2 \u2013port 10002 \u2013dbpath \/data\/mongodb\/shard2 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard2\/shard2.log \u2013logappend \u2013fork<\/p>\n
192.168.198.131<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard2 \u2013port 10002 \u2013dbpath \/data\/mongodb\/shard2 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard2\/shard2.log \u2013logappend \u2013fork<\/p>\n
192.168.198.132<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard2 \u2013port 10002 \u2013dbpath \/data\/mongodb\/shard2 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard2\/shard2.log \u2013logappend \u2013fork<\/p>\n
\u8fde\u63a5\u5230192.168.198.129<\/p>\n
# .\/mongo \u2013port 10002<\/p>\n
> config={_id:”shard2\u2033,members:[<\/p>\n
… {_id:0,host:”192.168.198.129:10002″},<\/p>\n
… {_id:1,host:”192.168.198.131:10002″},<\/p>\n
… {_id:2,host:”192.168.198.132:10002″}]<\/p>\n
\u2026 }<\/p>\n
{<\/p>\n
“_id” : “shard2\u2033,<\/p>\n
“members” : [<\/p>\n
{<\/p>\n
“_id” : 0,<\/p>\n
“host” : “192.168.198.129:10002”<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 1,<\/p>\n
“host” : “192.168.198.131:10002”<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 2,<\/p>\n
“host” : “192.168.198.132:10002”<\/p>\n
}<\/p>\n
]<\/p>\n
}<\/p>\n
> rs.initiate(config)<\/p>\n
{<\/p>\n
“info” : “Config now saved locally. Should come online in about a minute.”,<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
> rs.status()<\/p>\n
{<\/p>\n
“set” : “shard2\u2033,<\/p>\n
“date” : ISODate(“2012-03-02T02:53:17Z”),<\/p>\n
“myState” : 1,<\/p>\n
“members” : [<\/p>\n
{<\/p>\n
“_id” : 0,<\/p>\n
“name” : “192.168.198.129:10002”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 1,<\/p>\n
“stateStr” : “PRIMARY”,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330656717000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T02:51:57Z”),<\/p>\n
“self” : true<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 1,<\/p>\n
“name” : “192.168.198.131:10002”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 2,<\/p>\n
“stateStr” : “SECONDARY”,<\/p>\n
“uptime” : 73,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330656717000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T02:51:57Z”),<\/p>\n
“lastHeartbeat” : ISODate(“2012-03-02T02:53:17Z”),<\/p>\n
“pingMs” : 1<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 2,<\/p>\n
“name” : “192.168.198.132:10002”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 2,<\/p>\n
“stateStr” : “SECONDARY”,<\/p>\n
“uptime” : 73,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330656717000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T02:51:57Z”),<\/p>\n
“lastHeartbeat” : ISODate(“2012-03-02T02:53:17Z”),<\/p>\n
“pingMs” : 209906<\/p>\n
}<\/p>\n
],<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
\u914d\u7f6eshard3\u7684replica set<\/p>\n
192.168.198.132<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard3 \u2013port 10003 \u2013dbpath \/data\/mongodb\/shard3 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard3\/shard3.log \u2013logappend \u2013fork<\/p>\n
192.168.198.129<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard3 \u2013port 10003 \u2013dbpath \/data\/mongodb\/shard3 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard3\/shard3.log \u2013logappend \u2013fork<\/p>\n
192.168.198.131<\/p>\n
# .\/mongod \u2013shardsvr \u2013replSet shard3 \u2013port 10003 \u2013dbpath \/data\/mongodb\/shard3 \u2013oplogSize 100 \u2013logpath \/data\/mongodb\/shard3\/shard3.log \u2013logappend \u2013fork<\/p>\n
\u8fde\u63a5\u5230192.168.198.132<\/p>\n
# .\/mongo \u2013port 10003<\/p>\n
> config={_id:”shard3\u2033,members:[<\/p>\n
… {_id:0,host:”192.168.198.132:10003″},<\/p>\n
… {_id:1,host:”192.168.198.131:10003″},<\/p>\n
… {_id:2,host:”192.168.198.129:10003″}]<\/p>\n
\u2026 }<\/p>\n
{<\/p>\n
“_id” : “shard3\u2033,<\/p>\n
“members” : [<\/p>\n
{<\/p>\n
“_id” : 0,<\/p>\n
“host” : “192.168.198.132:10003”<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 1,<\/p>\n
“host” : “192.168.198.131:10003”<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 2,<\/p>\n
“host” : “192.168.198.129:10003”<\/p>\n
}<\/p>\n
]<\/p>\n
}<\/p>\n
> rs.initiate(config)<\/p>\n
{<\/p>\n
“info” : “Config now saved locally. Should come online in about a minute.”,<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
> rs.status()<\/p>\n
{<\/p>\n
“set” : “shard3\u2033,<\/p>\n
“date” : ISODate(“2012-03-02T03:04:52Z”),<\/p>\n
“myState” : 1,<\/p>\n
“members” : [<\/p>\n
{<\/p>\n
“_id” : 0,<\/p>\n
“name” : “192.168.198.132:10003”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 1,<\/p>\n
“stateStr” : “PRIMARY”,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330657451000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T03:04:11Z”),<\/p>\n
“self” : true<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 1,<\/p>\n
“name” : “192.168.198.131:10003”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 2,<\/p>\n
“stateStr” : “SECONDARY”,<\/p>\n
“uptime” : 39,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330657451000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T03:04:11Z”),<\/p>\n
“lastHeartbeat” : ISODate(“2012-03-02T03:04:52Z”),<\/p>\n
“pingMs” : 0<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : 2,<\/p>\n
“name” : “192.168.198.129:10003”,<\/p>\n
“health” : 1,<\/p>\n
“state” : 2,<\/p>\n
“stateStr” : “SECONDARY”,<\/p>\n
“uptime” : 39,<\/p>\n
“optime” : {<\/p>\n
“t” : 1330657451000,<\/p>\n
“i” : 1<\/p>\n
},<\/p>\n
“optimeDate” : ISODate(“2012-03-02T03:04:11Z”),<\/p>\n
“lastHeartbeat” : ISODate(“2012-03-02T03:04:52Z”),<\/p>\n
“pingMs” : 0<\/p>\n
}<\/p>\n
],<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
\u914d\u7f6econfig<\/p>\n
192.168.198.131<\/p>\n
# .\/mongod \u2013configsvr \u2013dbpath \/data\/mongodb\/config1 \u2013port 20000 \u2013logpath \/data\/mongodb\/config1\/config1.log \u2013logappend \u2013fork<\/p>\n
192.168.198.129<\/p>\n
# .\/mongod \u2013configsvr \u2013dbpath \/data\/mongodb\/config1 \u2013port 20000 \u2013logpath \/data\/mongodb\/config1\/config1.log \u2013logappend \u2013fork<\/p>\n
192.168.198.132<\/p>\n
# .\/mongod \u2013configsvr \u2013dbpath \/data\/mongodb\/config1 \u2013port 20000 \u2013logpath \/data\/mongodb\/config1\/config1.log \u2013logappend \u2013fork<\/p>\n
\u914d\u7f6emongos<\/p>\n
# .\/mongos \u2013configdb 192.168.198.131:20000,192.168.198.129:20000,192.168.198.132:20000 \u2013port 27017 \u2013chunkSize 1 \u2013logpath \/data\/mongodb\/mongos.log \u2013logappend \u2013fork<\/p>\n
\u914d\u7f6eshard cluster<\/p>\n
# .\/mongo \u2013port 27017<\/p>\n
mongos> use admin<\/p>\n
switched to db admin<\/p>\n
\u52a0\u5165shards<\/p>\n
mongos> db.runCommand({addshard:”shard1\/192.168.198.131:10001,192.168.198.129:10001,192.168.198.132:10001\u2033});<\/p>\n
{ “shardAdded” : “shard1”, “ok” : 1 }<\/p>\n
mongos> db.runCommand({addshard:”shard2\/192.168.198.131:10002,192.168.198.129:10002,192.168.198.132:10002″});<\/p>\n
{ “shardAdded” : “shard2”, “ok” : 1 }<\/p>\n
mongos> db.runCommand({addshard:”shard3\/192.168.198.131:10003,192.168.198.129:10003,192.168.198.132:10003″});<\/p>\n
{ “shardAdded” : “shard3”, “ok” : 1 }<\/p>\n
\u5217\u51fashards<\/p>\n
mongos> db.runCommand({listshards:1})<\/p>\n
{<\/p>\n
“shards” : [<\/p>\n
{<\/p>\n
“_id” : “shard1”,<\/p>\n
“host” : “shard1\/192.168.198.129:10001,192.168.198.131:10001,192.168.198.132:10001”<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : “shard2”,<\/p>\n
“host” : “shard2\/192.168.198.129:10002,192.168.198.131:10002,192.168.198.132:10002”<\/p>\n
},<\/p>\n
{<\/p>\n
“_id” : “shard3”,<\/p>\n
“host” : “shard3\/192.168.198.129:10003,192.168.198.131:10003,192.168.198.132:10003”<\/p>\n
}<\/p>\n
],<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
\u6fc0\u6d3b\u6570\u636e\u5e93\u5206\u7247<\/p>\n
mongos> db.runCommand({enablesharding:”test”});<\/p>\n
{ “ok” : 1 }<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u547d\u4ee4\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u5e93test\u8de8shard\uff0c\u5982\u679c\u4e0d\u6267\u884c\uff0c\u6570\u636e\u5e93\u53ea\u4f1a\u5b58\u653e\u5728\u4e00\u4e2ashard\uff0c\u4e00\u65e6\u6fc0\u6d3b\u6570\u636e\u5e93\u5206\u7247\uff0c\u6570\u636e\u5e93\u4e2d\u7684\u4e0d\u540c\u7684collection\u5c06\u88ab\u5b58\u653e\u5728\u4e0d\u540c\u7684shard\u4e0a\uff0c\u4f46\u4e00\u4e2acollection\u4ecd\u65e7\u5b58\u653e\u5728\u540c\u4e00\u4e2ashard\u4e0a\uff0c\u8981\u4f7fcollection\u4e5f\u5206\u7247\uff0c\u9700\u5bf9collection\u505a\u4e9b\u5176\u4ed6\u64cd\u4f5c\u3002<\/p>\n
collection\u5206\u7247<\/p>\n
mongos> db.runCommand({shardcollection:”test.data”,key:{_id:1}})<\/p>\n
{ “collectionsharded” : “test.data”, “ok” : 1 }<\/p>\n
\u5206\u7247\u7684collection\u53ea\u80fd\u6709\u4e00\u4e2a\u5728\u5206\u7247key\u4e0a\u7684\u552f\u4e00\u7d22\u5f15\uff0c\u5176\u4ed6\u552f\u4e00\u7d22\u5f15\u4e0d\u88ab\u5141\u8bb8\u3002<\/p>\n
\u67e5\u770bshard\u4fe1\u606f<\/p>\n
mongos> printShardingStatus()<\/p>\n
\u2014 Sharding Status \u2014<\/p>\n
sharding version: { “_id” : 1, “version” : 3 }<\/p>\n
shards:<\/p>\n
{ “_id” : “shard1”, “host” : “shard1\/192.168.198.129:10001,192.168.198.131:10001,192.168.198.132:10001” }<\/p>\n
{ “_id” : “shard2”, “host” : “shard2\/192.168.198.129:10002,192.168.198.131:10002,192.168.198.132:10002” }<\/p>\n
{ “_id” : “shard3”, “host” : “shard3\/192.168.198.129:10003,192.168.198.131:10003,192.168.198.132:10003” }<\/p>\n
databases:<\/p>\n
{ “_id” : “admin”, “partitioned” : false, “primary” : “config” }<\/p>\n
{ “_id” : “test”, “partitioned” : true, “primary” : “shard1” }<\/p>\n
test.data chunks:<\/p>\n
shard1 1<\/p>\n
{ “_id” : { $minKey : 1 } } \u2013>> { “_id” : { $maxKey : 1 } } on : shard1 { “t” : 1000, “i” : 0 }<\/p>\n
mongos> use test<\/p>\n
switched to db test<\/p>\n
mongos> db.data.stats()<\/p>\n
{<\/p>\n
“sharded” : true,<\/p>\n
“flags” : 1,<\/p>\n
“ns” : “test.data”,<\/p>\n
“count” : 0,<\/p>\n
“numExtents” : 1,<\/p>\n
“size” : 0,<\/p>\n
“storageSize” : 8192,<\/p>\n
“totalIndexSize” : 8176,<\/p>\n
“indexSizes” : {<\/p>\n
“_id_” : 8176<\/p>\n
},<\/p>\n
“avgObjSize” : 0,<\/p>\n
“nindexes” : 1,<\/p>\n
“nchunks” : 1,<\/p>\n
“shards” : {<\/p>\n
“shard1” : {<\/p>\n
“ns” : “test.data”,<\/p>\n
“count” : 0,<\/p>\n
“size” : 0,<\/p>\n
“storageSize” : 8192,<\/p>\n
“numExtents” : 1,<\/p>\n
“nindexes” : 1,<\/p>\n
“lastExtentSize” : 8192,<\/p>\n
“paddingFactor” : 1,<\/p>\n
“flags” : 1,<\/p>\n
“totalIndexSize” : 8176,<\/p>\n
“indexSizes” : {<\/p>\n
“_id_” : 8176<\/p>\n
},<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
},<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
\u6d4b\u8bd5\uff1a\u63d2\u5165\u5927\u91cf\u6570\u636e<\/p>\n
mongos> for (var i=1;i<=500000;i++) db.data.save ({_id:i,value:”www.strongd.net”})<\/p>\n
mongos> printShardingStatus()<\/p>\n
\u2014 Sharding Status \u2014<\/p>\n
sharding version: { “_id” : 1, “version” : 3 }<\/p>\n
shards:<\/p>\n
{ “_id” : “shard1”, “host” : “shard1\/192.168.198.129:10001,192.168.198.131:10001,192.168.198.132:10001” }<\/p>\n
{ “_id” : “shard2”, “host” : “shard2\/192.168.198.129:10002,192.168.198.131:10002,192.168.198.132:10002” }<\/p>\n
{ “_id” : “shard3”, “host” : “shard3\/192.168.198.129:10003,192.168.198.131:10003,192.168.198.132:10003” }<\/p>\n
databases:<\/p>\n
{ “_id” : “admin”, “partitioned” : false, “primary” : “config” }<\/p>\n
{ “_id” : “test”, “partitioned” : true, “primary” : “shard1” }<\/p>\n
test.data chunks:<\/p>\n
shard1 6<\/p>\n
shard2 5<\/p>\n
shard3 11<\/p>\n
too many chunks to print, use verbose if you want to force print<\/p>\n
mongos> db.data.stats()<\/p>\n
{<\/p>\n
“sharded” : true,<\/p>\n
“flags” : 1,<\/p>\n
“ns” : “test.data”,<\/p>\n
“count” : 500000,<\/p>\n
“numExtents” : 19,<\/p>\n
“size” : 22000084,<\/p>\n
“storageSize” : 43614208,<\/p>\n
“totalIndexSize” : 14062720,<\/p>\n
“indexSizes” : {<\/p>\n
“_id_” : 14062720<\/p>\n
},<\/p>\n
“avgObjSize” : 44.000168,<\/p>\n
“nindexes” : 1,<\/p>\n
“nchunks” : 22,<\/p>\n
“shards” : {<\/p>\n
“shard1” : {<\/p>\n
“ns” : “test.data”,<\/p>\n
“count” : 112982,<\/p>\n
“size” : 4971232,<\/p>\n
“avgObjSize” : 44.00021242321786,<\/p>\n
“storageSize” : 11182080,<\/p>\n
“numExtents” : 6,<\/p>\n
“nindexes” : 1,<\/p>\n
“lastExtentSize” : 8388608,<\/p>\n
“paddingFactor” : 1,<\/p>\n
“flags” : 1,<\/p>\n
“totalIndexSize” : 3172288,<\/p>\n
“indexSizes” : {<\/p>\n
“_id_” : 3172288<\/p>\n
},<\/p>\n
“ok” : 1<\/p>\n
},<\/p>\n
“shard2” : {<\/p>\n
“ns” : “test.data”,<\/p>\n
“count” : 124978,<\/p>\n
“size” : 5499056,<\/p>\n
“avgObjSize” : 44.00019203379795,<\/p>\n
“storageSize” : 11182080,<\/p>\n
“numExtents” : 6,<\/p>\n
“nindexes” : 1,<\/p>\n
“lastExtentSize” : 8388608,<\/p>\n
“paddingFactor” : 1,<\/p>\n
“flags” : 1,<\/p>\n
“totalIndexSize” : 3499328,<\/p>\n
“indexSizes” : {<\/p>\n
“_id_” : 3499328<\/p>\n
},<\/p>\n
“ok” : 1<\/p>\n
},<\/p>\n
“shard3” : {<\/p>\n
“ns” : “test.data”,<\/p>\n
“count” : 262040,<\/p>\n
“size” : 11529796,<\/p>\n
“avgObjSize” : 44.000137383605555,<\/p>\n
“storageSize” : 21250048,<\/p>\n
“numExtents” : 7,<\/p>\n
“nindexes” : 1,<\/p>\n
“lastExtentSize” : 10067968,<\/p>\n
“paddingFactor” : 1,<\/p>\n
“flags” : 1,<\/p>\n
“totalIndexSize” : 7391104,<\/p>\n
“indexSizes” : {<\/p>\n
“_id_” : 7391104<\/p>\n
},<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n
},<\/p>\n
“ok” : 1<\/p>\n
}<\/p>\n","protected":false},"excerpt":{"rendered":"
MongoDB\u7684auto-sharding\u529f\u80fd\u662f\u6307mongodb\u901a\u8fc7mongos\u81ea\u52a8\u5efa\u7acb\u4e00\u4e2a\u6c34\u5e73\u6269\u5c55\u7684\u6570\u636e\u5e93\u96c6\u7fa4\u7cfb\u7edf\uff0c\u5c06\u6570\u636e\u5e93\u5206\u8868\u5b58\u50a8\u5728sharding\u7684\u5404\u4e2a\u8282\u70b9\u4e0a\u3002 \u901a\u8fc7\u628aSharding\u548cReplica Sets\u76f8\u7ed3\u5408\uff0c\u53ef\u4ee5\u642d\u5efa\u4e00\u4e2a\u5206\u5e03\u5f0f\u7684\uff0c\u9ad8\u53ef\u7528\u6027\uff0c\u81ea\u52a8\u6c34\u5e73\u6269\u5c55\u7684\u96c6\u7fa4\u3002 \u8981\u6784\u5efaMongoDB Sharding Cluster\uff0c\u9700\u8981\u4e09\u79cd\u89d2\u8272\uff1a Shard Server: mongod \u5b9e\u4f8b\uff0c \u4f7f\u7528 Replica Sets\uff0c\u786e\u4fdd\u6bcf\u4e2a\u6570\u636e\u8282\u70b9\u90fd\u5177\u6709\u5907\u4efd\u3001\u81ea\u52a8\u5bb9\u9519\u8f6c\u79fb\u3001\u81ea\u52a8\u6062\u590d\u80fd\u529b\u3002\u7528\u4e8e\u5b58\u50a8\u5b9e\u9645\u7684\u6570\u636e\u5757\uff0c\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\u4e00\u4e2ashard server\u89d2\u8272\u53ef\u7531\u51e0\u53f0\u673a\u5668\u7ec4\u4e2a\u4e00\u4e2arelica set\u627f\u62c5\uff0c\u9632\u6b62\u4e3b\u673a\u5355\u70b9\u6545\u969c Config Server: mongod \u5b9e\u4f8b\uff0c\u4f7f\u7528 3 \u4e2a\u914d\u7f6e\u670d\u52a1\u5668\uff0c\u786e\u4fdd\u5143\u6570\u636e\u5b8c\u6574\u6027(two-phase commit)\u3002\u5b58\u50a8\u4e86\u6574\u4e2a Cluster Metadata\uff0c\u5176\u4e2d\u5305\u62ec chunk \u4fe1\u606f\u3002 Route Server: mongos \u5b9e\u4f8b\uff0c\u914d\u5408 LVS\uff0c\u5b9e\u73b0\u8d1f\u8f7d\u5e73\u8861\uff0c\u63d0\u9ad8\u63a5\u5165\u6027\u80fd(high performance)\u3002\u524d\u7aef\u8def\u7531\uff0c\u5ba2\u6237\u7aef\u7531\u6b64\u63a5\u5165\uff0c\u4e14\u8ba9\u6574\u4e2a\u96c6\u7fa4\u770b\u4e0a\u53bb\u50cf\u5355\u4e00\u6570\u636e\u5e93\uff0c\u524d\u7aef\u5e94\u7528\u53ef\u4ee5\u900f\u660e\u4f7f\u7528\u3002 \u73af\u5883\u5982\u4e0b\uff1a 192.168.198.131 shard1:10001 shard2:10002 shard3:10003 config1:20000 192.168.198.129 shard1:10001 shard2:10002 shard3:10003 config2:20000 192.168.198.132 shard1:10001 shard2:10002 shard3:10003 config3:20000 192.168.198.133 mongos:27017 \u5206\u522b\u5728\u4e09\u53f0\u670d\u52a1\u5668\u4e0a\u5b89\u88c5mongod\u670d\u52a1\uff0c\u5b89\u88c5\u5982\u4e0b\uff1a # wget http:\/\/fastdl.mongodb.org\/linux\/mongodb-linux-x86_64-2.0.3.tgz # … Continue reading mongodb sharding cluster(\u5206\u7247\u96c6\u7fa4)<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,20],"tags":[10],"class_list":["post-1281","post","type-post","status-publish","format-standard","hentry","category-linux","category-20","tag-mongodb"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/1281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1281"}],"version-history":[{"count":2,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/1281\/revisions"}],"predecessor-version":[{"id":1283,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/1281\/revisions\/1283"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}