# Example of Spark/EShadoop query counting distinct host.hostname

**URL:** <https://discuss.elastic.co/t/example-of-spark-eshadoop-query-counting-distinct-host-hostname/211369>\
**Category:** Elasticsearch\
**Tags:** es-hadoop\
**Created:** [December 10, 2019, 7:34pm UTC](https://discuss.elastic.co/t/example-of-spark-eshadoop-query-counting-distinct-host-hostname/211369 "2019-12-10T19:34:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Saas\_Cloud\_Security](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/saas_cloud_security/32/59154_2.png) [@Saas\_Cloud\_Security](https://discuss.elastic.co/u/Saas_Cloud_Security)\
**Post date:** [December 10, 2019, 7:34pm UTC](https://discuss.elastic.co/t/example-of-spark-eshadoop-query-counting-distinct-host-hostname/211369/1 "2019-12-10T19:34:10Z")

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I would like to count the # of distinct host.hostname in a 50G Elasticsearch index. Do you have an example that I model after?

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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:** [January 7, 2020, 7:34pm UTC](https://discuss.elastic.co/t/example-of-spark-eshadoop-query-counting-distinct-host-hostname/211369/2 "2020-01-07T19:34:24Z")

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