This topic describes how to monitor the performance of hosts in an analytical instance by using OceanBase Cloud.
Procedure
Log in to the OceanBase Cloud console.
In the left-side navigation pane, click Instances.
On the Instances page, click the name of the target instance to navigate to the Overview page of the instance.
In the left-side navigation pane of the Overview page of the instance, click Metrics.
On the Metrics page, click the Host Metrics tab.
By default, this tab shows the monitoring data of all nodes in the instance in the last 6 hours.
- You can select a node from the Node drop-down list to view its monitoring data. If you select multiple nodes, you can click node names in a chart to filter the data to view.
- You can also specify a time period to filter the data to view.
The following table describes the performance metrics.
Monitoring item Metric Description Load load1 The average CPU load in the last 1 minute. CPU Percent 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 Offset ntp_offset_milliseconds The NTP clock offset of the node. Unit: ms. OceanBase Data Disk Usage Rate ob_data_disk_percent The data disk usage of the node in percentage (%). OceanBase Log Disk Usage Rate ob_clog_disk_percent The log disk usage of the node in percentage (%). Disk Usage ob_data_disk_used_size The size of used data disk space on the node. Unit: GB. OceanBase process status ob_process_exists The status of the observer process on the node. 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. 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 (%). OB Host IOPS ob_host_real_time_iops IOPS for OceanBase host, in times per second (times/s). Supported only on instances with Alibaba Cloud, Huawei Cloud, and AWS as cloud providers. OB Host Throughput ob_host_real_time_throughput Throughput for OceanBase host, in MB per second (MB/s). Supported only on instances with Alibaba Cloud, Huawei Cloud, and AWS as cloud providers. OB Host IO Utilization ob_host_iops_used_percent I/O utilization of the OceanBase host, in percentage (%). Supported only on instances with Alibaba Cloud and AWS as cloud providers. OB Host Throughput Utilization ob_host_throughput_used_percent Throughput utilization of the OceanBase host, in percentage (%). Supported only on instances with Alibaba Cloud, Huawei Cloud, and AWS as cloud providers.