# Trying to get log from my computer but is not working **URL:** \ **Category:** Elasticsearch\ **Created:** [January 8, 2016, 1:03pm UTC](https://discuss.elastic.co/t/trying-to-get-log-from-my-computer-but-is-not-working/38725 "2016-01-08T13:03:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ragnar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ragnar/32/7610_2.png) [@Ragnar](https://discuss.elastic.co/u/Ragnar)\ **Post date:** [January 8, 2016, 1:03pm UTC](https://discuss.elastic.co/t/trying-to-get-log-from-my-computer-but-is-not-working/38725/1 "2016-01-08T13:03:59Z")
Hi Folks, I'm learning the use of ELK stack by following this tuto : > **[How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on Ubuntu 14.04 |...](https://www.digitalocean.com/community/tutorials/how-to-install-elasticsearch-logstash-and-kibana-elk-stack-on-ubuntu-14-04)** > > In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on Ubuntu 14.04—that is, Elasticsearch 2.2.x, Logstash 2.2.x, and Kibana 4.4.x. We will also show you how to configure it to gather and visualize the syslogs of your... When I want to configure the index pattern on kibana, 'logstash-_' told me 'Unable to fetch mapping [...]'. It's normal for me because the default file made by the forwarder start with 'filebeat-_' by default. I have only a little of data stored in ES if I look with sense plugging. I look at the logs (kibana, logstash, elasticsearch) and I see error like a lot of java err in ES but I have no idea where I have to look to find out how manage this. Any hint ? ---
**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:** [January 9, 2016, 9:25pm UTC](https://discuss.elastic.co/t/trying-to-get-log-from-my-computer-but-is-not-working/38725/2 "2016-01-09T21:25:54Z")
It's probably because there is no data in ES, use `_cat/indices` to check and then take a look at your LS to make sure it is processing things. ---
**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, 11:25pm UTC](https://discuss.elastic.co/t/trying-to-get-log-from-my-computer-but-is-not-working/38725/3 "2017-07-05T23:25:45Z")