Splunk uses alayered configuration modelwhere settings are loaded in a specific order. This order determines which configuration takes precedence when multiple settings conflict. Atindex time(the point when data is parsed and indexed), the configuration precedence is clearly defined in the official documentation.
FromSplunk Docs(props.conf precedence):
Configuration file resolution order (highest to lowest precedence):
$SPLUNK_HOME/etc/users/ < username > / < appname > /local
$SPLUNK_HOME/etc/apps/ < appname > /local
$SPLUNK_HOME/etc/apps/ < appname > /default
$SPLUNK_HOME/etc/system/local
$SPLUNK_HOME/etc/system/default
However, forindex-time configurations, a slight difference applies:
system/local and users/local areoften treated specially, butin practice and according to Splunk Docs, thesystem/localconfigs override apps/default, and so on.
InOption C, the correct precedence fromhighest to lowestis:
/etc/users/local (Highest)
/etc/system/default
/etc/apps/aaa/local
/etc/apps/zzz/default
/etc/system/local (Lowest of these listed)
Though system/local typically has high precedence,when users/local is involved, that is the ultimate override. Splunk Docs confirms this in:
Configuration file precedence
Configuration layering reference
Therefore, Option C reflects the correct Splunk configuration file precedence order at index time.
