On the host performance monitoring details tab, you can view the monitoring data of hosts.
View the monitoring data of cluster hosts
Log on to the ApsaraDB for OceanBase console.
In the left-side navigation pane, click Instances.
In the instance list, click the name of the target instance to go to the instance workspace.
In the left-side navigation pane of the instance workspace, click Performance Monitoring.
Click the Host Metrics tab.
By default, the Cluster Hosts tab displays the monitoring data of all nodes of the cluster in the last hour.
You can select a node from the Node drop-down list to view the monitoring data of the node. If you select multiple nodes, you can click a node name in the chart to view the monitoring data of the specific node.
You can specify a period and view the data in the specified period.
The displayed metrics are described in the following table.
Metric display name
Metric
Note
Load
load1
The average CPU load in the last 1 minute.
CPU utilization
cpu_percent
The CPU utilization in percentage (%).
Memory
memory_used
The size of physical memory used by the node. Unit: GB.
Network throughput
net_throughput
The network throughput of the node. Unit: MB.
NTP clock offset
ntp_offset_milliseconds
The NTP clock offset of the node. Unit: ms.
OB Data Disk Usage
ob_data_disk_percent
The usage of the data disk of the node in percentage (%).
OB Clog Disk Usage
ob_clog_disk_percent
The usage of the log disk of the node in percentage (%).
Disk usage
ob_data_disk_used_size
The size of occupied data disk space of the node. Unit: GB.
OB process exists status
ob_process_exists
Indicates whether the observer process of the node is alive.
OB Clog Disk IOPS
ob_clog_io
The average number of I/O operations per second on the log disk of the node.
OB Clog Disk IO Time
ob_clog_io_time
The average time spent on each I/O operation on the log disk of the node. Unit: ms.
OB Clog IO Throughput
ob_clog_io_byte
The average I/O throughput per second of the log disk of the node. Unit: MB.
OB Clog IO Util
ob_clog_io_util
The I/O usage of the log disk of the node in percentage (%).
OB Data Disk IOPS
ob_data_io
The average number of I/O operations per second on the data disk of the node.
OB Data Disk IO time
ob_data_io_time
The average time spent on each I/O operation on the data disk of the node. Unit: ms.
OB Data IO Throughput
ob_data_io_byte
The average I/O throughput per second of the data disk of the node. Unit: MB.
OB Data IO Util
ob_data_io_util
The I/O usage of the data disk of the node in percentage (%).