# Will my "%{GREEDYDATA:\[log\_message\]}" overwrides all my other grok filters?

**URL:** <https://discuss.elastic.co/t/will-my-greedydata-log-message-overwrides-all-my-other-grok-filters/260063>\
**Category:** Logstash\
**Created:** [January 4, 2021, 7:27am UTC](https://discuss.elastic.co/t/will-my-greedydata-log-message-overwrides-all-my-other-grok-filters/260063 "2021-01-04T07:27:56Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![yulaika](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yulaika/32/77403_2.png) [@yulaika](https://discuss.elastic.co/u/yulaika)\
**Post date:** [January 4, 2021, 7:27am UTC](https://discuss.elastic.co/t/will-my-greedydata-log-message-overwrides-all-my-other-grok-filters/260063/1 "2021-01-04T07:27:56Z")

</div>

grok {  
match =\> {  
"message" =\> [

```
          "(?<[log][timestamp]>%{YEAR}-%{MONTHNUM}-%{MONTHDAY}%{SPACE}%{TIME}) \[%{NOTSPACE:[LOG][LEVEL]}\] %{GREEDYDATA:[log_message]}"
        ,

          "(?<[log][timestamp]>%{YEAR}-%{MONTHNUM}-%{MONTHDAY}%{SPACE}%{TIME}) %{NOTSPACE:[LOG][LEVEL]} %{GREEDYDATA:[log_message]}"
        ,

          "\[(?<[log][timestamp]>%{YEAR}-%{MONTHNUM}-%{MONTHDAY}%{SPACE}%{TIME})\] %{GREEDYDATA:[log_message]}"
        ,

          "(?<[log][timestamp]>%{YEAR}-%{MONTHNUM}-%{MONTHDAY}%{SPACE}%{TIME}) %{GREEDYDATA:[log_message]}"
        ,

          "(?<[log][timestamp]>%{MONTHNUM}-%{MONTHDAY}-%{YEAR}%{SPACE}%{TIME}) %{GREEDYDATA:[log_message]}"
        ,

          "%{GREEDYDATA:[log_message]}"

      ]

    }

  }
```

---

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [January 4, 2021, 2:43pm UTC](https://discuss.elastic.co/t/will-my-greedydata-log-message-overwrides-all-my-other-grok-filters/260063/2 "2021-01-04T14:43:13Z")

</div>

If break\_on\_match is true (the default) then grok will go through the patterns in order and stop when it finds one that matches.

---

<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:** [February 1, 2021, 2:43pm UTC](https://discuss.elastic.co/t/will-my-greedydata-log-message-overwrides-all-my-other-grok-filters/260063/3 "2021-02-01T14:43:16Z")

</div>

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