Splunk Search

Help with improving Regex

youngsuh
Contributor

Here is the regex to extract message_type based on CIM.  Could anyone make this faster than 1387 steps?

https://regex101.com/r/dHbs4i/1

 

(?P<message_type>[^.]query|response)\:

 

 

Here is the sample syslog for DNS.

 

Feb  3 00:42:32 FSTAd2346.g.ae3.dns.mil tmm[19902] 2021-02-03 00:42:32 FSTAd2346.g.ae3.dns.mil qid 26818 from 10.130.27.34#13258: view none: query: a-grv-gocdzace.g.ae3.dns.mil IN A + (10.130.44.87%0)
Feb  3 00:42:32 FSTAd2346.g.ae3.dns.mil tmm[19902] 2021-02-03 00:42:32 FSTAd2346.g.ae3.dns.mil qid 57035 to 10.130.27.34#13258: [NOERROR qr,aa,rd] response: a-grv-gocdzace.g.ae3.dns.mil

 

   

Labels (2)
Tags (1)
0 Karma
1 Solution

manjunathmeti
Champion

This executes with 50 steps with the given sample data.

 

(?<message_type>query|response)\:

 

 

View solution in original post

0 Karma

bowesmana
SplunkTrust
SplunkTrust

Unless you really need to have the [\.] in the regex, i.e. you want to match any character in front of the word query, other than the '.' character and to include this in your message type then you should use one of the suggestions.

NB, you don't need the \ in front of :

 

manjunathmeti
Champion

This executes with 50 steps with the given sample data.

 

(?<message_type>query|response)\:

 

 

0 Karma

scelikok
SplunkTrust
SplunkTrust

Hi @youngsuh,

Below is working in 163 steps based on your sample data. 

\s(?P<message_type>query|response)\:

 

If this reply helps you an upvote and "Accept as Solution" is appreciated.
Get Updates on the Splunk Community!

.conf24 | Registration Open!

Hello, hello! I come bearing good news: Registration for .conf24 is now open!   conf is Splunk’s rad annual ...

ICYMI - Check out the latest releases of Splunk Edge Processor

Splunk is pleased to announce the latest enhancements to Splunk Edge Processor.  HEC Receiver authorization ...

Introducing the 2024 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...