Splunk Admin Tip: Monitoring License Usage by Sourcetype
As a Splunk admin, keeping track of your license usage is crucial to ensure you stay within your allocated limits and manage your data efficiently. Here’s a handy SPL (Search Processing Language) query to monitor license usage by sourcetype:

"index=_internal source=*license_usage.log* type=Usage
| bin _time span=1d
| stats sum(b) as totalVolumeBytes by _time, idx, st
| eval totalVolumeGB=totalVolumeBytes/1024/1024/1024
| rename idx as index, st as sourcetype
| fields _time index sourcetype totalVolumeGB
| sort _time, -totalVolumeGB"

Explanation:
🔍 Search Index: index=_internal source=*license_usage.log* type=Usage
This part of the query searches the _internal index for license usage logs.

🕒 Time Binning: | bin _time span=1d
Bins the events into daily intervals.

📊 Aggregation: | stats sum(b) as totalVolumeBytes by _time, idx, st
Sums the volume of data in bytes for each day, indexed by time, index (idx), and sourcetype (st).

🔄 Conversion to GB: | eval totalVolumeGB=totalVolumeBytes/1024/1024/1024
Converts the total volume from bytes to gigabytes.

✏️ Renaming Fields: | rename idx as index, st as sourcetype
Renames the fields for better readability.

🔍 Field Selection: | fields _time index sourcetype totalVolumeGB
Selects the relevant fields to display.

🔝 Sorting: | sort _time, -totalVolumeGB
Sorts the results by time and total volume in descending order.

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