# Grok pattern
**URL:** https://discuss.elastic.co/t/grok-pattern/372023
**Category:** Logstash
**Created:** [December 16, 2024, 1:40pm UTC](https://discuss.elastic.co/t/grok-pattern/372023 "2024-12-16T13:40:38Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@inkerinmaa](https://discuss.elastic.co/u/inkerinmaa)
#### Post date: [December 16, 2024, 1:40pm UTC](https://discuss.elastic.co/t/grok-pattern/372023/1 "2024-12-16T13:40:38Z")
Hi. I am trying to parse this log message:
```auto
2024-12-09 12:33:53,722 ERROR [Timer-Driven Process Thread-10] o.a.n.processors.standard.LogAttribute LogAttribute[id=9b65f63b-0193-1000-ffff-ffffd5fe4484] logging for flow file StandardFlowFileRecord[uuid=44e26a91-9cd3-4b89-820c-c017b6bb167e,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1733479320437-1, container=default, section=1], offset=67, length=26],offset=0,name=6e40fa80-02b3-4e3a-b0cf-454a8442f7e4,size=26]
FlowFile Properties: {invokehttp.response.body=
IIS 10.0 Detailed Error - 404.0 - Not found