The host performance monitoring details page displays monitoring data for nodes.
View cluster host monitoring data
Log on to the OceanBase Management Console .
In the navigation pane on the left, click Instance List.
In the instance list, find the target instance and click the instance name to open the Instance Workbench.
In the navigation pane on the left, click Performance Monitoring.
Click the Cluster Host tab.
By default, the Cluster Host monitoring page displays monitoring data for all nodes for the last hour.
You can use the node selector to view data for specific nodes. If you select multiple nodes, you can click a node name in the chart to view only the information for that node.
You can set a custom time range to view data for a specific period.
The following monitoring metrics are available:
Metric Category | Metric Name | Unit | Description |
System Load | load1 | - | CPU load statistics. The average CPU load over the last 1 minute. |
CPU Usage | cpu_percent | Percentage (%) | The CPU utilization. |
Memory Usage | memory_used | GiB | The amount of physical memory used by the node. |
Network Throughput | net_throughput | MiB | The network throughput rate of the node. |
Data Received per Second | net_recv | MiB | The volume of data received per second. |
Data Sent per Second | net_send | MiB | The volume of data sent per second. |
NTP Clock Offset | ntp_offset_milliseconds | ms | The Network Time Protocol (NTP) clock offset of the node. |
OB Data Disk Usage | ob_data_disk_percent | Percentage (%) | The data disk usage of the node. |
OB Log Disk Usage | ob_clog_disk_percent | Percentage (%) | The log disk usage of the node. |
Disk Usage | ob_data_disk_used_size | GiB | The amount of data disk space used by the node. |
Data Size | ob_data_required_size | GiB | The size of the data. |
OB Process Status | ob_process_exists | - | The status of the OceanBase process on the node. |
Average IOPS of OB Log Disk | ob_clog_io | times/s | The average number of I/O operations per second on the OB log disk. |
Average I/O Latency of OB Log Disk | ob_clog_io_time | ms | The average latency per I/O operation on the OB log disk. |
Average I/O Throughput of OB Log Disk | ob_clog_io_byte | MiB | The average I/O throughput per second on the OB log disk. |
I/O Utilization of OB Log Disk | ob_clog_io_util | Percentage (%) | The I/O utilization of the OB log disk. |
Average IOPS of OB Data Disk | ob_data_io | times/s | The average number of I/O operations per second on the OB data disk. |
Average I/O Latency of OB Data Disk | ob_data_io_time | ms | The average latency per I/O operation on the OB data disk. |
Average I/O Throughput of OB Data Disk | ob_data_io_byte | MiB | The average I/O throughput per second on the OB data disk. |
I/O Utilization of OB Data Disk | ob_data_io_util | Percentage (%) | The I/O utilization of the OB data disk. |
OB Host IOPS | ob_host_real_time_iops | times/s | The real-time input/output operations per second (IOPS) of the OB host. |
OB Host Throughput | ob_host_real_time_throughput | MiB | The real-time throughput of the OB host. |
OB Host I/O Utilization | ob_host_iops_used_percent | Percentage (%) | The I/O utilization of the OB host. |
OB Host Throughput Utilization | ob_host_throughput_used_percent | Percentage (%) | The throughput utilization of the OB host. |
The metric names in the table can also be used as values for the `Metrics` request parameter in the DescribeMetricsDataV2 - Query monitoring metric data OpenAPI call.