Source status
In KUMA, you can monitor the state of the sources of data received by collectors. There can be multiple sources of events on one server, and data from multiple sources can be received by one collector.
You can configure automatic identification of event sources using one of the following sets of fields:
- Custom set of fields. You can specify from 1 to 9 fields in the order you want.
- Apply default mapping — DeviceProduct, DeviceHostName, DeviceAddress, DeviceProcessName. The field order cannot be changed.
Sources are identified if the following fields in events are not empty: the DeviceProduct field, the DeviceAddress and/or DeviceHostname field, and the TenantID field (you do not need to specify the TenantID field, it is determined automatically). The DeviceProcessName field can be empty. If the DeviceProcessName field is not empty, and the other required fields are filled, a new source is identified.
Identification of event sources depending on non-empty event fields
DeviceProduct
DeviceHostName
DeviceAddress
DeviceProcessName
TenantID (determined automatically)
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Source 1 identified
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Source 2 identified
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Source 3 identified
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Source 4 identified
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Source 5 identified
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Source 6 identified
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Source not identified
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Source not identified
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Source not identified
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Source not identified
Only one set of fields is applied for the entire installation. When upgrading to a new KUMA version, the default set of fields is applied. Only a user with the General Administrator role can configure the set of fields for identifying an event source. After you save changes to the set of fields, previously identified event sources are deleted from the KUMA web interface and from the database. If necessary, you can revert to using a set of fields to determine default event sources. For the edited settings to take effect and KUMA to begin identifying sources based on the new settings, you must restart the collectors.
To identify event sources:
- In the KUMA web interface, go to the Source status section.
- This opens the Source status window; in that window, click the wrench button.
- This opens the Settings of event source detection window; in that window, in the Grouping fields for source detection drop-down list, select the event fields by which you want to identify event sources.
You can specify from 1 to 9 fields in the order you want. In a custom configuration, KUMA identifies sources in which the TenantID field is filled and at least one field from the Identical fields for source identification is filled. For numeric fields, 0 is considered an empty value. If a single numeric field is selected for source identification, and the value of the numeric field is 0, the source is not detected.
After you save the modified set of fields, an audit event is created and all previously identified sources are deleted from the KUMA web interface and from the database; assigned policies are disabled.
- If you want to go back to the list of fields for identifying the default event source, click Apply default mapping. The default field order cannot be changed. If you manually specify the fields in the wrong order, an error is displayed and the save settings button becomes unavailable. The correct default sequence of fields is DeviceProduct, DeviceHostName, DeviceAddress, DeviceProcessName. Minimum configuration for identifying event sources using the default set of events: non-empty values in the DeviceProduct field, the DeviceAddress and/or DeviceHostName field, and the TenantID field (TenantID is determined automatically).
- Click Save.
- Restart the collectors to apply the changes and begin identifying event sources by the specified list of fields.
Source identification is configured.
To view events that are associated with an event source:
- In the KUMA web interface, go to the Source status section.
- This opens the Event sources window; in that window, select your event source in the list, and in the Name column, expand the menu for the selected event source, click the Events for <number> days button.
KUMA takes you to the Events section, where you can view a list of events for the selected source over the last 5 minutes. Values of fields configured in the event source identification settings are automatically specified in the query. If necessary, in the Events section, you can change the time period in the query and click Run query again to view the queried data for the specified time period.
Limitations
- In a configuration with the default field set, KUMA registers the event source only if the raw event contains the DeviceProduct field and the DeviceAddress and/or DeviceHostName fields.
If the raw event does not contain the DeviceProduct field and the DeviceAddress and/or DeviceHostName fields, you can:
- Configure enrichment in the normalizer: on the Enrichment tab of the normalizer, select the Event data type, specify the Source field setting, and for the Target field, select the DeviceProduct + DeviceAddress and/or DeviceHostName and click OK.
- Use an enrichment rule: select the Event data source type, specify the Source field setting, and as the Target field, select DeviceProduct + DeviceAddress and/or DeviceHostName, then click Create. The created enrichment rule must be linked to the collector at the Event enrichment step.
KUMA will perform enrichment and register the event source.
- If KUMA receives events with identical values of the DeviceProduct + DeviceHostname + DeviceAddress required fields, KUMA registers different sources if the following conditions are satisfied:
- The values of the required fields are identical, but different tenants are determined for the events.
- The values of the required fields are identical, but one of the events has an optional DeviceProcessName field specified.
- The values of the required fields are identical, but the data in these fields have different character case.
If you want KUMA to log such events under the same source, you can further configure the fields in the normalizer.
Lists of sources are generated in collectors, merged in the KUMA Core, and displayed in the program web interface under Source status on the List of event sources tab. Data is updated every minute.
The rate and number of incoming events serve as an important indicator of the state of the observed system. You can configure monitoring policies such that changes are tracked automatically and notifications are automatically created when indicators reach specific boundary values. Monitoring policies are displayed in the KUMA web interface under Source status on the Monitoring policies tab.
When monitoring policies are triggered, monitoring events are created and include data about the source of events.
