Getting Data In

How to Remove the data getting indexed?

Inayath_khan
Path Finder

Hi Folks,

Can anyone suggest how to remove the below data getting indexed to indexer and also how to remove the data which is already indexed?

timestamp syslog_host user remote_host connection_id query_id operation database object

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1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi @Inayath_khan,
Splunk isn't a database, so you cannot modify or remove data after indexing:

Ciao.
Giuseppe

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gcusello
SplunkTrust
SplunkTrust

Hi @Inayath_khan,
Splunk isn't a database, so you cannot modify or remove data after indexing:

Ciao.
Giuseppe

View solution in original post

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Inayath_khan
Path Finder

Thanks @gcusello can you help me at a configuration level what changes has to be made to stop selective data getting indexed?

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gcusello
SplunkTrust
SplunkTrust

Hi @Inayath_khan,
as described at https://docs.splunk.com/Documentation/Splunk/8.0.2/Forwarding/Routeandfilterdatad#Filter_event_data_... , you can filter data before indexing in two ways:

  • take all the data and delete some identified events,
  • delete all the data and take identified events.

In both cases you have to follow these steps:

  • identify events to filter (sourcetype or source or host);
  • identify rule to discard or take logs (regex);
  • modify props.conf and transforms.conf on indexers or (when present) on Heavy Forwarders;
  • put props.conf and transforms.conf in an App (better) or in $SPLUNK_HOME/etc/system/local .

Discard specific events and keep the rest:
In props.conf, set the TRANSFORMS-null attribute:

[your_sourcetype]
TRANSFORMS-null= setnull

in transforms.conf, set DEST_KEY to "queue" and FORMAT to "nullQueue":

[setnull]
REGEX = your_regex
DEST_KEY = queue
FORMAT = nullQueue

At the end restart Splunk Enterprise.

Keep specific events and discard the rest
In props.conf:

[your_sourcetype]
TRANSFORMS-set= setnull,setparsing

In transforms.conf:

[setnull]
REGEX = .
DEST_KEY = queue
FORMAT = nullQueue

[setparsing]
REGEX = your-regex
DEST_KEY = queue
FORMAT = indexQueue

At the end restart Splunk Enterprise.

Ciao.
Giuseppe

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