Scenario

Cloud Eye on the public cloud monitors CloudTable cluster running status. You can view CloudTable monitoring metrics on the management console. According to the monitoring information, you can quickly learn about cluster health status and key system information.

Monitored data requires some time for transmission and display. Cloud Eye provides CloudTable cluster node monitoring information obtained 5 to 10 minutes before. You can view the monitored data of a newly created CloudTable cluster 5 to 10 minutes later.

Background Information

• Monitoring metrics of an unavailable CloudTable cluster node cannot be displayed on the Cloud Eye page. You can view the monitoring information only after the CloudTable cluster node is restarted or recovered.
• Cloud Eye will delete a CloudTable cluster node that becomes faulty for 1 hour from the monitoring list and will not monitor it any more. However, you need to manually clear its alarm rules.

Procedure

1. Log in to the CloudTable management console.
2. Click in the upper left corner to select a region.
3. In the left navigation pane, click Cluster Mode.
4. In the upper right corner of the cluster list, enter the name of a cluster in the search box and click .
   Figure 1 Searching for a cluster
   

5. In the Operation column of the cluster, click Monitor to access the Cloud Eye management console. Then you can view CloudTable monitoring information.

   Table 1 describes parameters about CloudTable service monitoring.

   Table 1 Instance monitoring parameters

   Parameter	Description
   ID	Name of the monitored instance
   Permanent Data Storage	Name of the OBS bucket where raw data of all monitoring metrics is stored Click next to ID to expand the instance, and click Configure Data Storage to configure the permanent data storage.
   Operation	Click next to ID to expand the instance. You can see the following operation buttons: View Monitoring Graph, Create Alarm Rule, and Configure Data Storage.

6. In the Operation column of the instance, click View Monitoring Graph to access the Cloud Eye management console. In the left navigation pane, choose CloudTable > Monitoring metric.

   For more information about monitoring graphs, see the Cloud Eye User Guide.

7. On the Monitoring metric page, graphs of raw data collected in 1h, 3h, and 12h are displayed. In the right corner of the monitoring graph of raw metric data, Max and Min values of the target metric are displayed. By default, nine monitoring graphs are displayed on one page. If the number of metrics of a service instance is more than nine, you can click Load more to view more monitoring graphs.
8. In the upper right corner of the monitoring graph, click to enlarge the graph for viewing detailed data.
9. On the displayed page, select an existing time range or manually specify a time range for instance monitoring.

   The system allows you to select a fixed time range or customize the time range.

   • The fixed time range can be 1h, 3h, 12h, 1d, 7d, or 30d.
     • If you select 1h, 3h, 12h, or 1d, raw metric data is displayed by default.
     • If you select 7d or 30d, aggregated metric data is displayed by default.
   • Custom time ranges can be any time within the last six months.

10. On the page of graph details, click Settings to aggregate monitoring data. Select Enable rollup. Set Period and Statistic.
    • Enable rollup dictates what type of metric data is displayed. If you select Enable rollup, aggregated metric data is displayed. If you do not select Enable rollup, raw metric data is displayed.
    • Period indicates a time range during which raw data is collected. The value can be 5 minutes, 20 minutes, 1 hour, 4 hours, or 1 day. In the Period drop-down, several values are recommended based on your custom time range.
    • Statistic indicates the rollup method to be used, including Max., Min., Avg., Sum, and Variance.