cubefs/docs/source/dev-guide/admin-api/master/meta-partition.md

Metadata Shard Management

Create

curl -v "http://192.168.0.1:17010/metaPartition/create?count=10&name=test"

Batch create meta partitions.

Parameter List

Parameter	Type	Description
name	string	Volume name
count	uint64	Number of newly added mp

Query

curl -v "http://192.168.0.1:17010/metaPartition/get?id=1" | python -m json.tool

Displays detailed information about the metadata shard, including the shard ID, the starting range of the shard, etc.

Parameter List

Parameter	Type	Description
id	uint64	Metadata shard ID

Response Example

{
    "PartitionID": 1,
    "Start": 0,
    "End": 9223372036854776000,
    "MaxNodeID": 1,
    "VolName": "test",
    "Replicas": {},
    "ReplicaNum": 3,
    "Status": 2,
    "IsRecover": true,
    "Hosts": {},
    "Peers": {},
    "Zones": {},
    "MissNodes": {},
    "LoadResponse": {}
}

Decommission Replica

curl -v "http://192.168.0.1:17010/metaPartition/decommission?id=13&addr=10.196.59.202:17210"

Removes a replica of the metadata shard and creates a new replica.

Parameter List

Parameter	Type	Description
id	uint64	Metadata partition ID
addr	string	Address of the replica to be removed

Compare Replica

curl -v "http://192.168.0.1:17010/metaPartition/load?id=1"

Sends a task to compare the replica to each replica, and then checks whether the CRC of each replica is consistent.

Parameter List

Parameter	Type	Description
id	uint64	Metadata partition ID