# Grok not parsing

**URL:** <https://discuss.elastic.co/t/grok-not-parsing/343098>\
**Category:** Logstash\
**Created:** [September 15, 2023, 4:27am UTC](https://discuss.elastic.co/t/grok-not-parsing/343098 "2023-09-15T04:27:59Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![pshas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pshas/32/125689_2.png) [@pshas](https://discuss.elastic.co/u/pshas)\
**Post date:** [September 15, 2023, 4:27am UTC](https://discuss.elastic.co/t/grok-not-parsing/343098/1 "2023-09-15T04:27:59Z")

</div>

logstash.conf

```auto
# Sample Logstash configuration for creating a simple
# Beats -> Logstash -> Elasticsearch pipeline.

input {
  beats {
    port => 5044
    type = "test"
  }
}
filter {
  if [type] == "log" {
    grok {
      match => {
        "message" => "%{DATE_US:date}\s*%{TIME:time}\s*\\t%{DATA:proc}\s*\(%{DATA:procid}\)\s*\\t%{DATA:tid}\\t%{DATA:area}\s*\\t%{DATA:category}\s*\\t%{DATA:eventid}\s*\\t%{DATA:level}\s*\\t%{DATA:message}\\t%{GREEDYDATA:corellation}$"
      }
      remove_field => ["message"]
    }
  }
}
output {
  elasticsearch {
    hosts => ["http://localhost:9200"]
    index => "%{[@metadata][beat]}-%{[@metadata][version]}-%{+YYYY.MM.dd}"
    #user => "elastic"
    #password => "changeme"
  }
}

```

filebeat.yml

```auto
filebeat.inputs:

- type: log

  id: my-filestream-id

  enabled: true

  paths:
    - C:\Program Files\Common Files\microsoft shared\Web Server Extensions\16\LOGS\SHRP-10*.log

filebeat.config.modules:
  path: ${path.config}/modules.d/*.yml

  reload.enabled: false

setup.template.settings:
  index.number_of_shards: 1

output.logstash:

  hosts: ["172.18.10.236:5044"]

processors:
  - add_host_metadata:
      when.not.contains.tags: forwarded
  - add_cloud_metadata: ~
  - add_docker_metadata: ~
  - add_kubernetes_metadata: ~

```

example logs

```auto
09/15/2023 06:58:32.29 \tw3wp.exe (0x1E40) \t0x53CC\tSharePoint Foundation \tMonitoring \tb4ly\tHigh \tLeaving Monitored Scope: (PostAuthenticateRequestHandler) Время выполнения=0.996825596874434; CPU Milliseconds=0; Число запросов SQL=2; Parent=Request (GET:https://172.18.2.39/)\ta592daa0-7bf6-b069-a8b6-2cbff679f9ad
09/14/2023 13:09:35.61 \tDistributedCacheService.exe (0x2130) \t0x1A3C\tSharePoint Foundation \tMonitoring \tb4ly\tMedium \tLeaving Monitored Scope: (Updating child collection file cache.) Время выполнения=0.91805628854773; CPU Milliseconds=0; Число запросов SQL=1; Parent=Invalidating object collection file cache according to change type\t

```

Tell me where my error is, everything is fine in the grok debugger, but in logstash it doesn’t even want to delete the message. Thanks

---

<div class="post-metadata">

**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\
**Post date:** [September 18, 2023, 9:24am UTC](https://discuss.elastic.co/t/grok-not-parsing/343098/2 "2023-09-18T09:24:33Z")

</div>

Welcome to the community!

Quickest solution, change after filter:

```auto
if [input][type] == "log" {
grok {
    match => { "message" => "%{DATE_US:date}\s*%{TIME:time}\s*\\t%{DATA:proc}\s*\(%{DATA:procid}\)\s*\\t%{DATA:tid}\\t%{DATA:area}\s*\\t%{DATA:category}\s*\\t%{DATA:eventid}\s*\\t%{DATA:level}\s*\\t%{DATA:message}\\t%{GREEDYDATA:corellation}" }
	overwrite => ["message"]
  }
}

```

If you don't use overwrite then you will have the message field with additional the parsed field from grok as an array.

What you can change:  
Filebeat:

- `type: filestream` - log type is depricated

Logstash:

- You don't need type on input beat,
- Improve grok, have date+time in a single field, and no need $ at the end
- Convert to date format
- Additional parse the message with the csv plugin

```auto

input {
  beats {
    port => 5044
    enrich => "none"
  }  
}

filter {

 if [input][type] == "log" {
   grok {
    match => { "message" => "%{DATESTAMP:[@metadata][time]}\s*\\t%{DATA:proc}\s*\(%{DATA:procid}\)\s*\\t%{DATA:tid}\\t%{DATA:area}\s*\\t%{DATA:category}\s*\\t%{DATA:eventid}\s*\\t%{DATA:level}\s*\\t%{DATA:message}\\t%{GREEDYDATA:corellation}" }
	overwrite => ["message"]
    }
 }

	date {
        match => ["[@metadata][time]", "MM/dd/yyyy HH:mm:ss.SS"]
    }
	
	csv{
	 source => "message"
	 separator => "; "
	 columns => ["msg1","msg2","msg3","msg4"]
	}

}

output {
     file { path => "C:/path/sharep_%{+YYYY-MM-dd}.txt" }

    stdout {
        codec => rubydebug{}
    }
}

```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 16, 2023, 9:25am UTC](https://discuss.elastic.co/t/grok-not-parsing/343098/3 "2023-10-16T09:25:31Z")

</div>

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