This topic describes performance metrics related to the input/output operations per second (IOPS) in an OceanBase cluster. You can specify a statistical period to query the IOPS statistics in a single zone or on a single OBServer of an OceanBase cluster.
read
Definition
The number of SSStore reads in a cluster per second in the specified statistical period.
Description
| Metric | Metric field name | Unit |
|---|---|---|
| read | io_read | count |
Calculation expression
avg(rate(node_disk_reads_completed_total{@LABELS}[@INTERVAL])) by (@GBLABELS)
write
Definition
The number of SSStore writes in a cluster per second in the specified statistical period.
Description
| Metric | Metric field name | Unit |
|---|---|---|
| write | io_write | count |
Calculation expression
avg(rate(node_disk_writes_completed_total{@LABELS}[@INTERVAL])) by (@GBLABELS)