View instance host performance monitoring data

This topic describes how to view the host monitoring details of an analytical instance in the OceanBase Cloud console.

Procedure

1. Log in to the OceanBase Cloud console.

2. In the left-side navigation pane, click Cluster List.

3. In the cluster list, find the target cluster and click its name to go to the Cluster Dashboard page.

4. In the left-side navigation pane of the cluster dashboard page, click Metrics.

5. On the monitoring page, click the Hosts tab.

6. The cluster host monitoring page displays the monitoring data for all nodes in the last hour by default.

   

   • Use the node selection box to view the monitoring data for a specified node. If you select multiple nodes, you can filter the view by clicking the node name in the chart.
   • Use the custom filter time to view data within the corresponding time period.

   You can view the following monitoring data:

   • System resources

     Monitoring item	Metric	Unit	Description
     System Load	load1	-	CPU load statistics, the average CPU load in the last minute.
     CPU Usage	cpu_percent	Percentage (%)	CPU usage.
     Memory Usage	memory_percent	Percentage (%)	Memory usage.
     Network Throughput	net_throughput	MiB	Network throughput.
     Data Received per Second	net_recv	MiB	Data received per second.
     Data Sent per Second	net_send	MiB	Data sent per second.
     Disk Usage	ob_data_disk_used_size	GiB	Data disk usage of the node.

   • Disk and I/O

     Monitoring item	Metric	Unit	Description
     OceanBase Data Disk Usage	ob_data_disk_percent	Percentage (%)	Data disk usage of the node.
     OceanBase Log Disk Usage	ob_clog_disk_percent	Percentage (%)	Log disk usage of the node.
     Data Occupancy	ob_data_required_size	GiB	Data occupancy.
     OceanBase Log Disk Average IOPS	ob_clog_io	times/s	Average IOPS of the log disk of OceanBase Database.
     OceanBase Log Disk Average IOT	ob_clog_io_time	μs	Average IOT of the log disk of OceanBase Database.
     OceanBase Log Disk Average IOD	ob_clog_io_byte	MiB	Average IOD of the log disk of OceanBase Database.
     OceanBase Log Disk IO Busy Ratio	ob_clog_io_util	Percentage (%)	IO busy ratio of the log disk of OceanBase Database.
     OB Log Disk I/O Utilization	obcloud(metric_chart.host.log_disk_io_util_percent	Percentage (%)	The I/O utilization of the log disk.
     OB Data Disk Average IOPS	ob_data_io	times/s	The average number of I/O operations per second on the data disk.
     OB Data Disk Average I/O Time	ob_data_io_time	μs	The average time consumed for each I/O operation on the data disk.
     OB Data Disk Average I/O Volume	ob_data_io_byte	MiB	The average amount of data transferred per second by I/O operations on the data disk.
     OB Data Disk I/O Busy Ratio	ob_data_io_util	Percentage (%)	The I/O busy ratio of the data disk.
     OB Data Disk I/O Utilization	obcloud.metric_chart.host.data_disk_io_util_percent	Percentage (%)	The I/O utilization of the data disk.
     OB Data Disk Throughput Utilization	obcloud.metric_chart.host.data_disk_throughput_util_percent	Percentage (%)	The throughput utilization of the data disk. Supported only in clusters created on Alibaba Cloud, Huawei Cloud, and AWS.
     OB Host IOPS	ob_host_real_time_iops	times/s	The number of input/output operations per second on the OB host. Supported only in clusters created on Alibaba Cloud, Huawei Cloud, and AWS.
     OB Host Throughput	ob_host_real_time_throughput	MiB/s	The throughput of the OB host. Supported only in clusters created on Alibaba Cloud, Huawei Cloud, and AWS.
     OB Host I/O Utilization	ob_host_iops_used_percent	Percentage (%)	The I/O utilization of the OB host. Supported only in clusters created on Alibaba Cloud, Huawei Cloud, and AWS.
     OB Host Throughput Utilization	ob_host_throughput_used_percent	Percentage (%)	The throughput utilization of the OB host. Supported only in clusters created on Alibaba Cloud, Huawei Cloud, and AWS.

   • System Health and Availability

     Monitoring Metric	Metric Name	Unit	Description
     NTP Clock Offset	ntp_offset_milliseconds	ms	The NTP clock offset.
     Uptime	uptime	s	The cumulative service duration provided by the cluster.
     OB Process Status	ob_process_exists	-	The status of the OceanBase process on the node.