# Logstash unable to parse fully big csv file

**URL:** <https://discuss.elastic.co/t/logstash-unable-to-parse-fully-big-csv-file/104684>\
**Category:** Logstash\
**Created:** [October 20, 2017, 10:39am UTC](https://discuss.elastic.co/t/logstash-unable-to-parse-fully-big-csv-file/104684 "2017-10-20T10:39:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![surajiiitm](https://avatars.discourse-cdn.com/v4/letter/s/edb3f5/32.png) [@surajiiitm](https://discuss.elastic.co/u/surajiiitm)\
**Post date:** [October 20, 2017, 10:39am UTC](https://discuss.elastic.co/t/logstash-unable-to-parse-fully-big-csv-file/104684/1 "2017-10-20T10:39:29Z")

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Hi,  
I am parsing the csv data using logstash to elasticsearch but it parse only 340 lines out of 1500 lines and logstash shows the parsed lines in output but then logstash remain idle and nothing is being displayed and then we have to forcefully exit the logstash.

Please explain why this happens?  
Below is the details of filter script used in it.

filter {

csv {  
separator =\> ","  
columns =\> ["Date", "comment\_message", "sentiment", "comment\_author", "comment\_id"]  
}  
mutate {convert =\> ["sentiment", "integer"]}

}

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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:** [November 17, 2017, 10:39am UTC](https://discuss.elastic.co/t/logstash-unable-to-parse-fully-big-csv-file/104684/2 "2017-11-17T10:39:35Z")

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