# Filebeat

**URL:** <https://discuss.elastic.co/t/filebeat/276224>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [June 17, 2021, 7:26am UTC](https://discuss.elastic.co/t/filebeat/276224 "2021-06-17T07:26:37Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![SLIM\_SLIM](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/slim_slim/32/90463_2.png) [@SLIM\_SLIM](https://discuss.elastic.co/u/SLIM_SLIM)\
**Post date:** [June 17, 2021, 7:26am UTC](https://discuss.elastic.co/t/filebeat/276224/1 "2021-06-17T07:26:37Z")

</div>

Hi, i want to regroup lines in log file (5 lines max), i want to regroup lines until (default task-XX)  
**This is my filebeat config :**

```auto
fields_under_root: true
  multiline.type: pattern
  multiline.pattern: '[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2},[0-9]{3} * [A-Z]{3,5} * \[*[a-z]{1,10}\] * \(([^)]+)\)'
  multiline.negate: false
  multiline.match: after
  multiline.max_lines: 5`

```

Here is an example of lines :

```auto
2021-06-16 10:32:57,679 ERROR [stderr] (default task-51) com.itnsa.fwk.exception.T9RuntimeException: Ce contrat est introuvable pour POL_IDENT = [11 381 782], traitement impossible

2021-06-16 10:32:57,679 ERROR [stderr] (default task-51) at com.itnsa.assurance.soa.impl.SOAChargementContratImpl.chargeme

2021-06-16 10:32:57,679 ERROR [stderr] (default task-84) com.itnsa.fwk.exception.T9RuntimeException: Ce contrat est introuvable pour POL_IDENT = [11 381 782], traitement impossible

2021-06-16 10:32:57,679 ERROR [stderr] (default task-84) at com.itnsa.assurance.soa.impl.SOAChargementContratImpl.chargeme

2021-06-16 10:32:57,679 ERROR [stderr] (default task-84) com.itnsa.fwk.exception.T9RuntimeException: Ce contrat est introuvable pour POL_IDENT = [11 381 782], traitement impossible

2021-06-16 10:32:57,679 ERROR [stderr] (default task-84) at com.itnsa.assurance.soa.impl.SOAChargementContratImpl.chargeme

```

Here is my kibana pipeline to build fields :

```auto
PUT _ingest/pipeline/jboss-pipeline-preprod
{
  "description" : "pipeline preprod",
    "processors":
 [
      {
            "grok": 
           {
              "field": "message",
              "patterns": ["%{TIMESTAMP_ISO8601:ladate} %{WORD:severity} * \\[%{DATA:typestd}\\] * 
              \\ (%{DATA:task_id}\\) %{GREEDYDATA:message}"]
           }
     }
 ]
}

```

Combination of lines is not working please help me for this.

---

<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:** [July 15, 2021, 9:26am UTC](https://discuss.elastic.co/t/filebeat/276224/2 "2021-07-15T09:26:45Z")

</div>

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