Extract hostname from folder path

[rahiparikh]

Hi,

How can I extract hostname from path?

/dir/server1/*.log
/dir/server2/*.log
/dir/server3/*.log

I want server1, server2 and server3 to be hostname. My current config --

[ INPUTS.CONF ]

[monitor:///dir/*/messages]
host_regex = /dir/([\w\.\-_a-zA-Z0-9]+)/
source = /var/log/messages
disabled = 0
followTail = 1

I am pre-processing logs ( i.e. transforming before sending them to indexer ) and this config is applied to pre-processing instance. This either doesn't extract the information or extracts wrong information.

[lguinn2]

I would also suggest that you not use the source= parameter; source is supposed to be the name of the file being monitored. Splunk can determine this accurately and automatically.

[joelshprentz · Accepted solution]

Since the hostname is always the second element in your path, it would be easier to use the segment number (2 in your case).

Replace the host_regex line with:

host_segment = 2

See the documentation for more details.

[rahiparikh]

@joelshprentz - Thanks! But, same problem! Splunk think's host name field should be the splunk forwarder's name and not folder name! 😞