In Splunk, you store data in indexes made up of file buckets . These buckets contain data structures that enable Splunk to determine if the data contains terms or words. Buckets also contain compressed, raw data. This data is usually reduced to 15% of its original size, once compressed, to help Splunk store data efficiently.
Jump to solution 08-06-2013 11:57 AM Data is stored in $SPLUNK_HOME/var/lib/splunk, one directory per index ( $SPLUNK_HOME being where Splunk was installed). The files in the respective directories hold the data in the indexes.
What is Splunk and how does it work?
Splunk is a database system designed for extracting structure and analyzing machine-generated data. It takes in data from other databases, web servers, net works, sensors, etc. and then offers services to analyze the data, and produce dashboards, graphs, reports, alerts, and other visualizations.
After logging in, the Splunk interface home screen shows the Add Data icon as shown below. On clicking this button, we are presented with the screen to select the source and format of the data we plan to push to Splunk for analysis.
This of course begs the question “What is the supportability of Splunk?”
Supportaibility is challenging, however, with Master and Captain Nodes we can manage the Splunk configs and apps easily Highly Available as data is replicated across multiple nodes and if single indexer goes down still the data is searchable. If a search head goes down, other search heads will continue to provide the service.
How does Splunk indexer work?
Splunk indexer will index the data to Series of Events. Both the raw data and also the indexed data will be present in the Splunk later., 1 Where do these data get stored ?
This begs the question “How much data should you Index in Splunk?”
Typically, index files are somewhere between 10% and 110% of your “rawdata” files. The easiest way to determine the percentage you should expect is to index a representative sample of your data. Since there’s no Splunk storage calculator, we’re going to need to use a manual process.
Splunk uses its proprietary algorithm to store the data in a way that it can be retrieved in a faster manner and then searched upon. In a distributed deployment – search head (where user searches) and an indexer (where the data is stored) can be separated out.