# How to check if index is compressed? **URL:** \ **Category:** Elasticsearch\ **Created:** [June 22, 2014, 6:22pm UTC](https://discuss.elastic.co/t/how-to-check-if-index-is-compressed/18250 "2014-06-22T18:22:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Oleksandr\_Kunytsia](https://avatars.discourse-cdn.com/v4/letter/o/bc8723/32.png) [@Oleksandr\_Kunytsia](https://discuss.elastic.co/u/Oleksandr_Kunytsia)\ **Post date:** [June 22, 2014, 6:22pm UTC](https://discuss.elastic.co/t/how-to-check-if-index-is-compressed/18250/1 "2014-06-22T18:22:52Z")
Hi! I am starting using logstash + elasticsearch. How to verify that the data in the ES really is compressed? I am confused that the index files have quite a lot of lines that are repeated in the logs, and thus could be compressed. / Oleksandr -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/5170aec8-c249-4f60-bb91-964be9a54842%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5170aec8-c249-4f60-bb91-964be9a54842%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [June 22, 2014, 11:18pm UTC](https://discuss.elastic.co/t/how-to-check-if-index-is-compressed/18250/2 "2014-06-22T23:18:29Z")
ES compresses by default since 0.90.6, it doesn't de-dupe though. Regards, Mark Walkom Infrastructure Engineer Campaign Monitor email: [markw@campaignmonitor.com](mailto:markw@campaignmonitor.com) web: [www.campaignmonitor.com](http://www.campaignmonitor.com) On 23 June 2014 04:22, Oleksandr Kunytsia [okunia@gmail.com](mailto:okunia@gmail.com) wrote: > Hi! > > I am starting using logstash + elasticsearch. How to verify that the data > in the ES really is compressed? > > I am confused that the index files have quite a lot of lines that are > repeated in the logs, and thus could be compressed. > > / Oleksandr > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/5170aec8-c249-4f60-bb91-964be9a54842%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5170aec8-c249-4f60-bb91-964be9a54842%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/5170aec8-c249-4f60-bb91-964be9a54842%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/5170aec8-c249-4f60-bb91-964be9a54842%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAEM624ZDnub%2B0rdaNJnPa0z%2BUxKw-ntpBS5CAbq1G7EXAOtcRQ%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEM624ZDnub%2B0rdaNJnPa0z%2BUxKw-ntpBS5CAbq1G7EXAOtcRQ%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 1:20am UTC](https://discuss.elastic.co/t/how-to-check-if-index-is-compressed/18250/3 "2017-07-06T01:20:41Z")