topic Re: How to modify the source field to match normal splunk file location in Getting Data In

How to modify the source field to match normal splunk file location

coleman07 — Thu, 04 Feb 2016 10:42:02 GMT

We had to put the log files in the /san/splunk/var/log/splunk directory vs the /opt/splunk/var/log/splunk directory. Of course, I can modify apps that have hard coded the path to files in that directory. Is there a way to use props or transform on the indexer with the awkward path so the source will show up as /opt/splunk/var/log/splunk on the search head? That way, I don't have to modify the search in apps needing to find files in the /san/splunk/var/log/splunk directory.

Re: How to modify the source field to match normal splunk file location

jkat54 — Thu, 04 Feb 2016 11:08:39 GMT

Change your search to look for */splunk/var/log...

Or use sedcmd in props.conf on your sourcetype

 sedcmd-santoopt = "s/\/san/\/opt/g"

You can also use sed with the rex command in search:

 ... | rex mode=sed "s/\/san/\/opt/g" | ...

Re: How to modify the source field to match normal splunk file location

landen99 — Thu, 04 Feb 2016 20:24:22 GMT

You could hard code the source in your inputs.conf on your indexer or forwarder, http://docs.splunk.com/Documentation/Splunk/6.3.3/Admin/inputsconf

source= /opt/splunk/var/log/splunk/filename

Re: How to modify the source field to match normal splunk file location

somesoni2 — Thu, 04 Feb 2016 20:41:59 GMT

Try this in your Indexers and Heavy Forwarders and Search Heads (wherever you're collecting internal logs with this different path

props.conf 

[source::/san/splunk/var/log/splunk*]
TRANSFORMS-setsource = correct_source


transforms.conf

[correct_source]
SOURCE_KEY = MetaData:Source
DEST_KEY = MetaData:Source
REGEX = \/san\/splunk(\/var\/log\/splunk.*)
FORMAT = source::/opt/splunk$1

Re: How to modify the source field to match normal splunk file location

landen99 — Sun, 07 Feb 2016 17:53:51 GMT

I think that this regex would only match sources that began with the parent directory /san/ . Perhaps the regex could be relaxed to only match on the capture group:

 [correct_source]
 SOURCE_KEY = MetaData:Source
 DEST_KEY = MetaData:Source
 REGEX = (\/var\/log\/splunk.*)
 FORMAT = source::$1