Metric Filters limit the amount of metric data reported to the
Cloudera Manager server to avoid gaps in the reported data.
Metrics Filters allow you to
limit the amount of metric data sent to the Cloudera Manager Service
Monitor. In large clusters, some services, such as Kudu, send a high
volume of non-essential metrics data to the Service Monitor, which can
overload it, causing gaps in the data reported from these metrics in
charts, dashboards, and metric queries, and potentially limiting the
ability for Cloudera Manager to effectively monitor cluster health. To
mitigate this problem, you can configure Metric Filters that
limit the amount of data sent to the Service Monitor. You can configure
Metric Filters for any service deployed in a cluster.
You can configure the filter in several ways:
Limit the collected metrics to only include those required
for Health Tests.
Limit the collected metrics to only include metrics used
in the charts on the main page (‘Dashboard’) of the service.
Include specific metrics - only the specified metrics will
be collected for this service
Exclude specific metrics - the specified metrics will not be
collected for this service
To configure a Metric Filter:
Log in to the Cloudera Manager Admin
Console.
Navigate to the cluster where you want to add the
filter.
Click Configuration > Metric Filters.
The Configuration page displays the Metric Filter parameter for all
roles in the cluster.
You can now choose whether to edit all the Metric Filters using the
same values, or edit the filter for a specific role.
Do one of the following:
To configure the filter for a specific role, click the Edit
Individual Values link and locate the parameter for the service.
Follow the steps below.
To configure the same filter for all roles, edit the Default
Group.
Select one of the following:
Include Only Health Test Metric Set
Include Only Default Dashboard Metric Set
To filter specific metrics:
Select either Include or Exclude from the
‘Include/Exclude Custom Metrics’ drop-down
list.
If you selected either of the Metric sets,
and select Include, the custom metrics will be added to the
selected Metrics sets. If you select Exclude, they will be
excluded from the selected sets.
Click the “Plus” icon to add a metric.
Enter the metric name.
Click the “Plus” icon to add additional
metrics.
You can find the names of specific metrics you
would like to include or exclude either from the Cloudera Manager
Metrics Reference (see link below) or from a chart that is displaying
the required metrics in the Cloudera Manager Admin Console, as
follows:
Go to the Status page for a cluster or service.
In a chart, click the gear icon and select Open in
Chart Builder.
The query displays at the top of the page.
Metric names are part of the query. For example, the following
query:
select dfs_capacity, dfs_capacity_used, dfs_capacity_used_non_hdfs where entityName=$SERVICENAME
