Indexes in Splunk

What is an Index in Splunk?

• An index is a storage container in Splunk where data is stored.

• Splunk indexes raw data and its metadata (like timestamps, source, etc.) for efficient search and analysis.

• Examples: main (default), audit, internal, or custom indexes you create for specific data sources.

Key Index Types

1. Events Index: Stores log or event data (most common type).

2. Metrics Index: Optimized for numerical data (e.g., performance metrics).

3. Summary Index: Stores processed results of scheduled searches for faster reporting.

Understanding and efficiently managing indexes ensures optimal data handling within Splunk.

All these are default indexes in splunk which can't be deleted or disabled.

Still issue on searching. Wait let's fix this first.

Adjust Splunk's Minimum Free Space Requirement

sudo nano /opt/splunk/etc/system/local/server.conf

# Add or modify:

[diskUsage]
minFreeSpace = 500

Copy code

# save and restart
sudo /opt/splunk/bin/splunk restart

It's should work now. Please wait for a while and try a sample search index.

index="_internal"

Waah! It's working now. Cool, we can move forward to our Splunk learning.