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Working with multiple indexes

An index in Splunk is a storage pool for events, capped by size, time, or both. By default, all events will go to the index specified by defaultDatabase, which is called main but lives in a directory called defaultdb.

Directory structure of an index

Each index occupies a set of directories on disk. By default, these directories live in $SPLUNK_DB, which, by default, is located in $SPLUNK_HOME/var/lib/splunk. Looking at the following stanza for the main index:

[main]
homePath   = $SPLUNK_DB/defaultdb/db
coldPath   = $SPLUNK_DB/defaultdb/colddb
thawedPath = $SPLUNK_DB/defaultdb/thaweddb
maxHotIdleSecs = 86400
maxHotBuckets = 10
maxDataSize = auto_high_volume

If our Splunk installation lives at /opt/splunk, the index main ...

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