# Elastic / Logstash Paralelism **URL:** \ **Category:** Elasticsearch\ **Created:** [October 24, 2019, 12:42pm UTC](https://discuss.elastic.co/t/elastic-logstash-paralelism/205066 "2019-10-24T12:42:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![jmota](https://avatars.discourse-cdn.com/v4/letter/j/ee59a6/32.png) [@jmota](https://discuss.elastic.co/u/jmota)\ **Post date:** [October 24, 2019, 12:42pm UTC](https://discuss.elastic.co/t/elastic-logstash-paralelism/205066/1 "2019-10-24T12:42:33Z")
Hi, i m trying to undestand how does parallelism works in ES ... Searched around and read several itens about it but cant find the right answer to my question. I find myself , probably, missing some concept or confiuration... She scenario is straight forward - ES with LogStash working to read around 20 files from several IIS installed in my infra-structure. It works well and it load all information into ES. Since those files are gigs in size, it takes a while loading all info into ES. But when i refresh the graphics showing, for example, total hits, it slowing builds one graph at a time. I m hitting the refresh button and i see the info in one graph increasing , and only after it ends, it goes to the next graph. Like its loading info in sequential order. I was expcting to see several graphs showing new date at the same time and not one at a time. Used pipeline with multiple workers ,but didnt change the beahviour and tryed the -w option in logstash and had no effect also. Now i m confused beetween read parallelism and bulk paralllelism ... 😕 What am i missing here.... ? ( Windows 2012 with ES 7.4 with LS 7.4 also ) Thks in advance. ---
**Author:** ![jmota](https://avatars.discourse-cdn.com/v4/letter/j/ee59a6/32.png) [@jmota](https://discuss.elastic.co/u/jmota)\ **Post date:** [October 25, 2019, 11:55am UTC](https://discuss.elastic.co/t/elastic-logstash-paralelism/205066/2 "2019-10-25T11:55:35Z")
ok..so after re-reading several times the docs and trying some stuff, managed to have all graphs been updated at the same when i refresh the entire dashboard ... To do tat i had to put 20 input files in the logstash configuration ... .... ... Is there a way to avoid to do this, ( have 20 input filters) , and make the input behave multithreding ? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 22, 2019, 11:55am UTC](https://discuss.elastic.co/t/elastic-logstash-paralelism/205066/3 "2019-11-22T11:55:41Z")
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