Exclude Old data

[Sree]

Hi,

I'm trying to exclude events that have an old timestamp in a url which look like this - 

{"timestamp": 1626739199.964, "c-ip": "178.245.92.14", "time-to-first-byte": 0.002, "sc-status": 404, "sc-bytes": 467, "cs-method": "GET", "cs-protocol": "https", "cs-host": "xxxxxxx", "cs-uri-stem": "/out/v1/bac5ea7d5e06476598d34ba48b3f1bd1/index_8_0.m3u8?start=2021-07-16T16:40:07+00:00",

here timestamp and the start date are different.So is there any way to index the events have start date as current day.

Thanks in advance

[richgalloway]

Convert the start date to epoch form then filter on it.

... | eval startDate=strptime(start,"%Y-%m-%dT%H:%M:%S%:z")
| where startDate>=relative_time(now(), "@d")

[Sree]

Hi @richgalloway 

Thanks for the reply but  your answer is for the splunk events that got already indexed.

I'm trying to filter the data at the sourcetype level before it gets indexed.

[richgalloway]

Sorry, misunderstood the question.  Filtering at index time requires a transform that sends data to nullQueue.  The trick (for which I don't have an answer) is writing a regex that matches the current day without having to change it every day.  I'm not sure it's possible.  Perhaps Cribl can do it.