Getting Data In

Search for non-indexed message


Hi All~

I am trying to build a query to generate a list/table that shows me devices that have not sent in a specific message to be indexed by Splunk in the last 30 hours.

I believe I will need to create a subsearch to identify all devices that have communicated with any message in the last 30 days.

[ host="Jetstream" earliest=-30d@d | dedup EventId | fields LogicalDeviceId ]

The LogicalDeviceId is the unique name for each device being indexed. I want to use that field as the basis for the main search.

host="Jetstream" and sourcetype="ObjectEvent" earliest=-30h@h [ subsearch here ] | fields LogicalDeviceId, EventTime

For reference, an ObjectEvent looks like:
<Jetstream xmlns=""><Header EventId="02d42360-d0df-48f4-aa85-dc5cede9cc4a" EventTime="2011-05-16T05:53:31Z" LogicalDeviceId="10000092" ReceivedTime="2011-05-16T05:57:10Z" /><ObjectEvent><DeviceExtensionList /></ObjectEvent></Jetstream>

The resulting list would be those LogicalDeviceIds that have not sent in an ObjectEvent in the last 30 hours.

I'm seeing a couple problems. One is obviously speed on the subsearch. Any suggestions how to speed it up? I'm guessing there's a way to do unique on the LogicalDeviceId... The second is I'm not getting any results back.

Thanks for the help!

Tags (2)
0 Karma


A workable approach for this might be to build state in a lookup table. If you can periodically (and incrementally) update a lookup table with the last time a LogicalDeviceId checked in, then you can easily search that lookup table to figure out when a checkin was over 30 hours ago. Araitz covers this approach for firewall state in

You should be able to adapt his approach to this.

Get Updates on the Splunk Community!

Observability | How to Think About Instrumentation Overhead (White Paper)

Novice observability practitioners are often overly obsessed with performance. They might approach ...

Cloud Platform | Get Resiliency in the Cloud Event (Register Now!)

IDC Report: Enterprises Gain Higher Efficiency and Resiliency With Migration to Cloud  Today many enterprises ...

The Great Resilience Quest: 10th Leaderboard Update

The tenth leaderboard update (11.23-12.05) for The Great Resilience Quest is out &gt;&gt; As our brave ...