mongodb cluster configuration
caution
在实际部署的时候请注意替换下面例子中的ip地址,下面所有操作假设实在mongodb安装根目录中，比如/opt/mongodb
shard a: 27018
节点
- 192.168.0.77
- 192.168.0.78
- 192.168.0.58 仲裁节点
部署
mkdir data/shard_a
mkdir data/key
echo "demo shard key" > data/key/shard_key
chmod go-rw data/key/shard_key
numactl --interleave=all bin/mongod --shardsvr --replSet shard_a --fork --port 27018 --dbpath /home/work/local/mongodb/data/shard_a/ --logpath /home/work/local/mongodb/logs/shard_a.log --logappend --keyFile /home/work/local/mongodb/data/key/shard_key
cfg = {
_id : "shard_a",
members : [
{_id : 0, host : "192.168.0.77:27018"},
{_id : 1, host : "192.168.0.78:27018"},
{_id : 2, host : "192.168.0.58:27018",arbiterOnly:true}
]
}
shard b: 27018
节点
- 192.168.0.79
- 192.168.0.80
- 192.168.0.59 仲裁
部署
mkdir data/shard_b
mkdir data/key
echo "demo shard key" > data/key/shard_key
chmod go-rw data/key/shard_key
numactl --interleave=all bin/mongod --shardsvr --replSet shard_b --fork --port 27018 --dbpath /home/work/local/mongodb/data/shard_b/ --logpath /home/work/local/mongodb/logs/shard_b.log --logappend --keyFile /home/work/local/mongodb/data/key/shard_key
cfg = {
_id : "shard_b",
members : [
{_id : 0, host : "192.168.0.79:27018"},
{_id : 1, host : "192.168.0.80:27018"},
{_id : 2, host : "192.168.0.59:27018",arbiterOnly:true}
]
}
config server 27019
节点
- 192.168.0.77
- 192.168.0.79
- 192.168.0.59
部署
mkdir data/config
numactl --interleave=all bin/mongod --configsvr -dbpath=/home/work/local/mongodb/data/config/ --fork --logpath /home/work/local/mongodb/logs/config.log --logappend --port 27019 --keyFile /home/work/local/mongodb/data/key/shard_key
mongos 27017
节点
- 192.168.0.78
- 192.168.0.80
部署
numactl --interleave=all bin/mongos --configdb 192.168.0.77:27019,192.168.0.79:27019,192.168.0.59:27019 --port 27017 --logpath /home/work/local/mongodb/logs/mongos.log --fork --logappend --keyFile /home/work/local/mongodb/data/key/shard_key
shard管理
bin/mongo admin
db.addUser('admin','admin');
db.auth('admin','admin');
db.runCommand( { addshard : "shard_a/192.168.0.77:27018,192.168.0.78:27018" } );
db.runCommand( { addshard : "shard_b/192.168.0.79:27018,192.168.0.80:27018" } );
shard db and collections
举例
db.runCommand( { enablesharding : "demo" } );
db.runCommand( { shardcollection : "demo.Table", key : {cloumn1: 1,column2:1} } )