Dashboards in Monitoring

Dashboards consist of widgets. You can group the widgets in a convenient order, set their size, and add comments. Dashboards allow you to track metric changes in real time and analyze accumulated metrics over time. Metrics on dashboard charts are displayed for a certain time interval, the same for all charts.

The default interval is one day. You can specify a different interval using preset ranges (1h 3h 1d 1w 1mo). You can also set the start and end of the interval.

To set the time interval more precisely, you can use the timeline located above the dashboard.

Yandex Cloud users can use service dashboards containing preset widgets with metrics reporting the status of cloud resources. Service dashboards are created automatically.

Dashboard parametersDashboard parameters

Parameters allow you to create dashboards with customizable interactive content. For example, a dashboard presenting aggregated VM status information can be parameterized using the VM ID.

Parameters are displayed as drop-down menus above dashboard widgets. When you select a parameter value, the dashboard is updated and the selected value is substituted in data queries. How to add a dashboard parameter.

The following dashboard parameter types are available:

• Label: Parameter taking a series of values of the specified label.
• Custom: Parameter taking a series of fixed comma-separated values.
• Text: Parameter taking a single value specified in the text field.

For parameters of the Label and Custom type, the Multivalue setting is available to select multiple parameter values at the same time.

For all parameter types, you can set the Default value that will be used when loading a dashboard in the Yandex Monitoring web interface.

Parameter substitutionParameter substitution

Dashboard parameter values are used in widget headings and queries to metrics to filter label values. Parameter values are substituted using mustache template.

Examples of parameter value substitutionExamples of parameter value substitution

• Substituting values in widget headings.

  In the CPU usage on {{ host }} widget heading, the host parameter value will be substituted.

• Substituting label values in queries.

  In the "cpu.iowait"{folderId="aoe6mk1r3b47********", service="{{ myparm }}", host="*"} query, the service label will get the myparm parameter value.

Substituting parameter values in query strings when adding a widget to the dashboard looks like this:

Label value filterLabel value filter

The label value filter enables you to limit the list of possible parameter values of the Label type. The filter specifies labels and their values. The filter is applied to all parameters of the Label type at the same time.

Examples of filtering label valuesExamples of filtering label values

Let's assume a dashboard has a specified Label type parameter for the cluster label which takes the prod, preprod-1, preprod-2, and testing values.

Filtering settings and result:

• The cluster=*prod* filter will limit the parameter values to prod and preprod-1.
• The cluster=preprod-1|preprod-2 filter will limit the values to preprod-1 and preprod-2.
• The cluster=testing filter will limit the values to a single value, testing.

Below is a more complex example. Let's say the system has the following metrics:

• usage{cluster="prod", account="prodaccount"}
• usage{cluster="preprod", account="preprodaccount"}
• usage{cluster="testing", account="testingaccount"}
• usage{cluster="prod", account="multiaccount"}
• usage={cluster="testing", account="multiaccount"}

Filtering settings:

• The filter contains the cluster=*prod* value.
• The dashboard has the Label type parameters specified for the cluster and account labels.

Result:

• The only possible values of the cluster parameter will be prod and preprod. The testing value will be excluded as not matching the cluster=*prod* rule.
• The only possible values of the account parameter will be prodaccount, preprodaccount, and multiaccount. The testingaccount value will be excluded as there is no metric with a combination of account="testingaccount" and cluster labels matching the cluster=*prod* rule (for multiaccount, there is such a combination).

Chart repetition by parameterChart repetition by parameter

Chart repetition based on a specific parameter allows you to build several similar charts but with different values of this parameter. This can facilitate anomaly and issue analysis: you can split a metric into several metrics and examine each one separately.

For example, configure repetition by the host parameter to view CPU utilization charts for each one of your VMs. With a separate chart for each VM, it will be so much easier to localize your problem. By adding the cpu parameter, you can build utilization charts for each one of your VM's vCPUs.

For VMs, we recommend you to regularly monitor such parameters as CPU and RAM utilization and disk errors.

For more on chart repetition, see Parameter-based chart repetition.