Note
This view is introduced since OceanBase Database V4.0.0.
Purpose
This view displays the Unit information of the current OBServer node.
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| SVR_IP | varchar(46) | NO | The IP address of the server. |
| SVR_PORT | bigint(20) | NO | The port of the server. |
| UNIT_ID | bigint(20) | NO | The ID of the Unit. |
| TENANT_ID | bigint(20) | NO | The ID of the tenant to which the Unit belongs. |
| ZONE | varchar(128) | NO | The name of the zone. |
| ZONE_TYPE | varchar(128) | NO | The zone type of the zone where the Unit is located. Valid values include:
NoteThis field was introduced in V4.2.0. |
| REGION | varchar(128) | NO | The name of the region to which the zone where the Unit is located belongs. The default value is default_region. Valid values include NULL: indicates that the value of this column is invalid. This value may appear for a short period of time after an OBServer node is restarted.
NoteThis field was introduced in V4.2.0. |
| MAX_CPU | double | NO | The upper limit of the CPU specifications. |
| MIN_CPU | double | NO | The lower limit of the CPU specifications. |
| MEMORY_SIZE | bigint(20) | NO | The memory size in bytes. |
| MAX_IOPS | bigint(20) | NO | The upper limit of the disk IOPS specifications. |
| MIN_IOPS | bigint(20) | NO | The lower limit of the disk IOPS specifications. |
| IOPS_WEIGHT | bigint(20) | NO | The IOPS weight. |
| MAX_NET_BANDWIDTH | bigint(20) | YES | The maximum network bandwidth of the Unit in bytes.
NoteThis field was introduced in V4.3.4. |
| NET_BANDWIDTH_WEIGHT | bigint(20) | YES | The network bandwidth weight of the Unit.
NoteThis field was introduced in V4.3.4. |
| LOG_DISK_SIZE | bigint(20) | NO | The size of the log disk in bytes. |
| LOG_DISK_IN_USE | bigint(20) | NO | The size of the log disk in use in bytes. |
| DATA_DISK_SIZE | bigint(20) | YES |
NoteThis field was introduced in V4.3.4. |
| DATA_DISK_IN_USE | bigint(20) | NO |
|
| STATUS | varchar(64) | NO | The status of the Unit. NORMAL: normal statusMIGRATING IN: migrating inMIGRATING OUT: migrating outMARK DELETING: marked for deletionWAIT GC: waiting for GC dataDELETING: data has been GC'd, and is being deletedERROR: error status |
| CREATE_TIME | timestamp(6) | NO | The time when the Unit was created on the OBServer node. |
Sample query
The following example shows how to query the Unit information of all user tenants in the current OBServer node in standalone (Shared-Nothing, SN) mode.
obclient [oceanbase]> SELECT * FROM oceanbase.V$OB_UNITS\G
The query result is as follows:
*************************** 1. row ***************************
SVR_IP: 172.xx.xxx.xxx
SVR_PORT: 2882
UNIT_ID: 1
TENANT_ID: 1
ZONE: zone1
ZONE_TYPE: ReadWrite
REGION: default_region
MAX_CPU: 4
MIN_CPU: 4
MEMORY_SIZE: 5368709120
MAX_IOPS: 9223372036854775807
MIN_IOPS: 9223372036854775807
IOPS_WEIGHT: 4
MAX_NET_BANDWIDTH: 9223372036854775807
NET_BANDWIDTH_WEIGHT: 4
LOG_DISK_SIZE: 9663676416
LOG_DISK_IN_USE: 2964278798
DATA_DISK_SIZE: NULL
DATA_DISK_IN_USE: 97017856
STATUS: NORMAL
CREATE_TIME: 2024-10-30 10:57:36.445269
*************************** 2. row ***************************
SVR_IP: 172.xx.xxx.xxx
SVR_PORT: 2882
UNIT_ID: 1001
TENANT_ID: 1001
ZONE: zone1
ZONE_TYPE: ReadWrite
REGION: default_region
MAX_CPU: NULL
MIN_CPU: NULL
MEMORY_SIZE: 1073741824
MAX_IOPS: NULL
MIN_IOPS: NULL
IOPS_WEIGHT: NULL
MAX_NET_BANDWIDTH: NULL
NET_BANDWIDTH_WEIGHT: NULL
LOG_DISK_SIZE: 1932735283
LOG_DISK_IN_USE: 1480671367
DATA_DISK_SIZE: NULL
DATA_DISK_IN_USE: 72187904
STATUS: NORMAL
CREATE_TIME: 2024-10-30 10:59:25.305248
*************************** 3. row ***************************
SVR_IP: 172.xx.xxx.xxx
SVR_PORT: 2882
UNIT_ID: 1001
TENANT_ID: 1002
ZONE: zone1
ZONE_TYPE: ReadWrite
REGION: default_region
MAX_CPU: 2
MIN_CPU: 2
MEMORY_SIZE: 5368709120
MAX_IOPS: 9223372036854775807
MIN_IOPS: 9223372036854775807
IOPS_WEIGHT: 2
MAX_NET_BANDWIDTH: 9223372036854775807
NET_BANDWIDTH_WEIGHT: 2
LOG_DISK_SIZE: 17394617549
LOG_DISK_IN_USE: 1731127928
DATA_DISK_SIZE: NULL
DATA_DISK_IN_USE: 26578944
STATUS: NORMAL
CREATE_TIME: 2024-10-30 10:59:25.305248
*************************** 4. row ***************************
SVR_IP: 172.xx.xxx.xxx
SVR_PORT: 2882
UNIT_ID: 1002
TENANT_ID: 1003
ZONE: zone1
ZONE_TYPE: ReadWrite
REGION: default_region
MAX_CPU: NULL
MIN_CPU: NULL
MEMORY_SIZE: 1073741824
MAX_IOPS: NULL
MIN_IOPS: NULL
IOPS_WEIGHT: NULL
MAX_NET_BANDWIDTH: NULL
NET_BANDWIDTH_WEIGHT: NULL
LOG_DISK_SIZE: 1932735283
LOG_DISK_IN_USE: 1482198905
DATA_DISK_SIZE: NULL
DATA_DISK_IN_USE: 70107136
STATUS: NORMAL
CREATE_TIME: 2024-10-30 11:00:07.614632
*************************** 5. row ***************************
SVR_IP: 172.xx.xxx.xxx
SVR_PORT: 2882
UNIT_ID: 1002
TENANT_ID: 1004
ZONE: zone1
ZONE_TYPE: ReadWrite
REGION: default_region
MAX_CPU: 2
MIN_CPU: 2
MEMORY_SIZE: 5368709120
MAX_IOPS: 9223372036854775807
MIN_IOPS: 9223372036854775807
IOPS_WEIGHT: 2
MAX_NET_BANDWIDTH: 9223372036854775807
NET_BANDWIDTH_WEIGHT: 2
LOG_DISK_SIZE: 17394617549
LOG_DISK_IN_USE: 1749092883
DATA_DISK_SIZE: NULL
DATA_DISK_IN_USE: 29081600
STATUS: NORMAL
CREATE_TIME: 2024-10-30 11:00:07.614632
5 rows in set