# Query on filter plugin

**URL:** <https://discuss.elastic.co/t/query-on-filter-plugin/64097>\
**Category:** Logstash\
**Created:** [October 27, 2016, 5:48am UTC](https://discuss.elastic.co/t/query-on-filter-plugin/64097 "2016-10-27T05:48:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shivabharat](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@shivabharat](https://discuss.elastic.co/u/shivabharat)\
**Post date:** [October 27, 2016, 5:48am UTC](https://discuss.elastic.co/t/query-on-filter-plugin/64097/1 "2016-10-27T05:48:21Z")

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I have log file which dumps data as single entry . The fields are of fixed length. I am not sure which filter plugin to use to parse the file. Any pointers would be helpful

3004121506000299···························1030·····9888111111···················0024·············000·7···············

thanks

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**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [October 27, 2016, 6:14am UTC](https://discuss.elastic.co/t/query-on-filter-plugin/64097/2 "2016-10-27T06:14:19Z")

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You can e.g. use a grok filter.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:32am UTC](https://discuss.elastic.co/t/query-on-filter-plugin/64097/3 "2017-07-06T04:32:28Z")

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