Monitor
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Monitor
Currently, CnosDB metrics can be collected by Prometheus or stored on CnosDB.
If you would like to see more metrics supported by CnosDB, please send an ISSUE to the repository.
Data Node Monitor Metrics
VNODE_DISK_STORAGE
Name
vnode_disk_storage
Type
Gauge
Discription
The disk that the Vnode occupies.
Tag
| Field | Discription |
|---|---|
| DATABASE | Database vnode belongs to |
| NODE_ID | ID of data node |
| TENANT | tenant vnode belongs to |
| VNODE_ID | ID of Vnode |
| VALUE | Disk that the Vnode occupies in bytes |
VNODE_CACHE_SIZE
Name
vnode_cache_size
Type
Gauge
Description
The cache size that vnode occupies in bytes.
Tag
| Field | Discription |
|---|---|
| DATABASE | Database vnode belongs to |
| NODE_ID | ID of data node |
| TENANT | tenant vnode belongs to |
| VNODE_ID | ID of Vnode |
| VALUE | Cache that the Vnode occupies in bytes |
COORD_DATA_IN
Name
coord_data_in
Type
Count
Discription
The total size of the written traffic when data is written to the database.
Tag
| Field | Discription |
|---|---|
| TIME | Time of data_in |
| DATABASE | DatabaseName |
| NODE_ID | ID of data node |
| TENANT | Tenant name the database belongs to |
| VALUE | The total size of the write traffic in Bytes |
COORD_DATA_OUT
Name
coord_data_out
Type
Count
Discription
Total outflow traffic for reading data from the database.
Tag
| Field | Discription |
|---|---|
| TIME | Time of data out |
| DATABASE | Database name |
| NODE_ID | ID of data node |
| TENANT | Tenant name the database belongs to |
| VALUE | The total size of the read traffic in Bytes |
USER_QUERIES
Name
user_queries
Type
Count
Discription
The times the user queries from the database.
Tag
| Field | Discription |
|---|---|
| TIME | Time of queries |
| DATABASE | Database name |
| NODE_ID | ID of data node |
| TENANT | Tenant name the database belongs to |
| USER | User name |
| VALUE | The times the user queries from the database. |
USER_WRITES
Name
user_writes
Type
Count
Discription
The times the user writes to the database.
Tag
| Field | Discription |
|---|---|
| TIME | Time of writes |
| DATABASE | Database name |
| NODE_ID | ID of data node |
| TENANT | Tenant name the database belongs to |
| USER | User name |
| VALUE | The times the user writes to the database. |
Prometheus Monitor
Just add Job at the Prometheus configuration file.
scrape_configs:
# The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
- job_name: 'cnosdb'
static_configs:
- targets: ['127.0.0.1:8902']
Params
targets is the adderss of CnosDB Http.
Store to CnosDB
Change the store_metrics in config to true.