DataNode Management
Add
curl -v "http://192.168.0.11:17010/dataNode/add?addr=192.168.0.33:17310&zoneName=default"
Adds a new data node in the corresponding region.
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address for interaction between data node and master |
| zoneName | string | Specifies the region. If empty, the default value is default |
Query
curl -v "http://10.196.59.198:17010/dataNode/get?addr=10.196.59.201:17310" | python -m json.tool
Displays details about the data node, including the address of the data node, total capacity, used space, etc.
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address for interaction between data node and master |
Response Example
{
"TotalWeight": 39666212700160,
"UsedWeight": 2438143586304,
"AvailableSpace": 37228069113856,
"ID": 2,
"Zone": "zone1",
"Addr": "10.196.59.201:17310",
"ReportTime": "2018-12-06T10:56:38.881784447+08:00",
"IsActive": true
"UsageRatio": 0.06146650815226848,
"SelectTimes": 5,
"Carry": 1.0655859145960367,
"DataPartitionReports": {},
"DataPartitionCount": 21,
"NodeSetID": 3,
"PersistenceDataPartitions": {},
"BadDisks": {}
}
Decommission Node
curl -v "http://192.168.0.11:17010/dataNode/decommission?addr=192.168.0.33:17310"
Removes a data node from the cluster. All data shards on the data node will be asynchronously migrated to other available data nodes in the cluster.
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address for interaction between data node and master |
Get Disk
curl -v "http://192.168.0.11:17320/disks"
Gets disk information, including disk path, space usage, disk status, etc.
Get Node Partition
curl -v "http://192.168.0.11:17320/partitions"
Set Disk Decommission Control Speed
curl -v "http://192.168.0.11:17320/admin/updateDecommissionLimit?decommissionLimit=10"
Parameter List
| Parameter | Type | Description |
|---|---|---|
| decommissionLimit | int | Number of concurrent DPs to be decommissioned |
Note
New interface in v3.2.1
Query Disk Decommission Control Speed
curl -v "http://192.168.0.11:17320/admin/queryDecommissionLimit"
Note
New interface in v3.2.1
Query Disk Decommission Progress
curl -v "http://192.168.0.11:17320/disk/queryDecommissionProgress?addr=192.168.0.12:17310&disk=/home/service/var/data1"
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address of the node where the disk to be decommissioned is located |
| disk | string | Address of the disk to be decommissioned |
Note
New interface in v3.2.1
Query Node Decommission Progress
curl -v "http://192.168.0.11:17010/dataNode/queryDecommissionProgress?addr=192.168.0.33:17310"
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address for interaction between data node and master |
Note
New interface in v3.2.1
Cancel Disk Decommission
curl -v "http://192.168.0.11:17320/disk/cancelDecommission?addr=192.168.0.12:17310&disk=/home/service/var/data1"
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address of the node where the disk to be decommissioned is located |
| disk | string | Address of the disk to be decommissioned |
Note
New interface in v3.2.1
Cancel Node Decommission
curl -v "http://192.168.0.11:17010/dataNode/cancelDecommission?addr=192.168.0.33:17310"
Parameter List
| Parameter | Type | Description |
|---|---|---|
| addr | string | Address for interaction between data node and master |
Note
New interface in v3.2.1
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