# Force logstash to reindex csv files

**URL:** https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702
**Category:** Logstash
**Created:** [July 17, 2016, 8:35pm UTC](https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702 "2016-07-17T20:35:43Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![pittoch](https://avatars.discourse-cdn.com/v4/letter/p/df788c/32.png) [@pittoch](https://discuss.elastic.co/u/pittoch)
#### Post date: [July 17, 2016, 8:35pm UTC](https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702/1 "2016-07-17T20:35:43Z")

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Hello,  
Sometimes I need to force the re-indexing of files csv from the beginning.  
I try to delete the sincedb file and restart logstash, but re-indexing never restart from the beginning.  
What is the solution to reindex all files with logstash ?

Thanks.

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### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [July 18, 2016, 1:38am UTC](https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702/2 "2016-07-18T01:38:30Z")

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You'd be better off having a different config file for this, with `sincedb` set to `/dev/null`, or use stdin + cat.

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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: [July 18, 2016, 7:58am UTC](https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702/3 "2016-07-18T07:58:38Z")

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Also, adjust the file input's `ignore_older` parameter as necessary.

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### Author: ![pittoch](https://avatars.discourse-cdn.com/v4/letter/p/df788c/32.png) [@pittoch](https://discuss.elastic.co/u/pittoch)
#### Post date: [July 19, 2016, 9:40am UTC](https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702/4 "2016-07-19T09:40:23Z")

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> [@magnusbaeck](#):
>
> ignore\_older

Thank you!, I add dev/null and ignore\_older and it's ok

```
input {
    file {
        path => "E:/VOLUMETRIE-*.TXT"
		type => "core2"
		start_position => beginning
		#sincedb_path => "E:/test.db"
		sincedb_path => "/dev/null"
		ignore_older => 0
    }
}

```

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<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 6, 2017, 4:47am UTC](https://discuss.elastic.co/t/force-logstash-to-reindex-csv-files/55702/5 "2017-07-06T04:47:29Z")

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