# Elastic

**URL:** <https://discuss.elastic.co/t/elastic/51290>\
**Category:** Elasticsearch\
**Created:** [May 30, 2016, 8:45am UTC](https://discuss.elastic.co/t/elastic/51290 "2016-05-30T08:45:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![sylv](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@sylv](https://discuss.elastic.co/u/sylv)\
**Post date:** [May 30, 2016, 8:45am UTC](https://discuss.elastic.co/t/elastic/51290/1 "2016-05-30T08:45:53Z")

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Hello  
i set a base of 20000 lines which ones are visualized correctly on kibana  
when i add 1 line  
elastic read again all the lines then on kibana there are 40001 lines and of course it is not what i expected.  
why and how to avoid that behavior ?  
thanks  
Sylv

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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:** [May 30, 2016, 8:47am UTC](https://discuss.elastic.co/t/elastic/51290/2 "2016-05-30T08:47:13Z")

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More details, please. How are you feeding ES with the data?

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**Author:** ![sylv](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@sylv](https://discuss.elastic.co/u/sylv)\
**Post date:** [May 30, 2016, 9:06am UTC](https://discuss.elastic.co/t/elastic/51290/3 "2016-05-30T09:06:29Z")

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copy past the line  
and add it on xml file ...saved  
in // file on notepad ++ is updated with the new line  
it is red by elastic using a logstach.bat

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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:** [May 30, 2016, 7:48pm UTC](https://discuss.elastic.co/t/elastic/51290/4 "2016-05-30T19:48:15Z")

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When you append the line with Notepad++ it actually writes a new file and deletes the old one (while keeping the old file's name). This confuses Logstash. Append the new line with e.g. `echo new line >> logfile` instead.

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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 5, 2017, 10:47pm UTC](https://discuss.elastic.co/t/elastic/51290/5 "2017-07-05T22:47:55Z")

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