基本参数
mongod
* --wiredTigerCacheSizeGB arg maximum amount of memory to allocate for cache; defaults to 1/2 of physical RAM
* --shardsvr declare this is a shard db of a cluster; default port 27018
* --configsvr declare this is a config db of a cluster; default port 27019; default dir /data/configdb
* --replSet arg
* --oplogSize arg
* --bind_ip_all bind to all ip addresses
* --oplogSize arg size to use (in MB) for replication op
mongos
* --configdb
shardsvr,default 27018
docker run --network host --name shard1 --entrypoint mongod -d mongo:latest --bind_ip_all --shardsvr --replSet shard --port 27018
docker run --network host --name shard2 --entrypoint mongod -d mongo:latest --bind_ip_all --shardsvr --replSet shard --port 37018
docker run --network host --name shard3 --entrypoint mongod -d mongo:latest --bind_ip_all --shardsvr --replSet shard --port 47018
replset shard
rs.initiate(
{
_id: "shard",
version: 1,
members: [
{ _id: 0, host : "127.0.0.1:27018", priority:300},
{ _id: 1, host : "127.0.0.1:37018" , priority:200},
{ _id: 2, host : "127.0.0.1:47018" , priority:100}
]
}
)
configsvr,default 27019
docker run --network host --name config1 --entrypoint mongod -d mongo:latest --bind_ip_all --configsvr --replSet config --port 27019
docker run --network host --name config2 --entrypoint mongod -d mongo:latest --bind_ip_all --configsvr --replSet config --port 37019
docker run --network host --name config3 --entrypoint mongod -d mongo:latest --bind_ip_all --configsvr --replSet config --port 47019
replset config
rs.initiate(
{
_id: "config",
version: 1,
members: [
{ _id: 0, host : "127.0.0.1:27019" ,priority:300},
{ _id: 1, host : "127.0.0.1:37019" ,priority:200},
{ _id: 2, host : "127.0.0.1:47019",priority:100 }
]
}
)
mongos,default 27017
docker run --network host --name mongos --entrypoint mongos -d mongo:latest --bind_ip_all --configdb config/127.0.0.1:27019,127.0.0.1:37019,127.0.0.1:47019
sh.addShard("shard/127.0.0.1:27018,127.0.0.1:37018,127.0.0.1:47018")
sh.addShardTag("shard", "myshard")
sh.enableSharding("test")
