# Opendistro requires JDK instead of JRE

**URL:** <https://forum.opensearch.org/t/opendistro-requires-jdk-instead-of-jre/993>\
**Category:** Open Source Elasticsearch and Kibana\
**Created:** [July 1, 2019, 4:30pm UTC](https://forum.opensearch.org/t/opendistro-requires-jdk-instead-of-jre/993 "2019-07-01T16:30:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ratheesh.nair](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@ratheesh.nair](https://forum.opensearch.org/u/ratheesh.nair)\
**Post date:** [July 1, 2019, 4:30pm UTC](https://forum.opensearch.org/t/opendistro-requires-jdk-instead-of-jre/993/1 "2019-07-01T16:30:06Z")

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Hi,

Sorry, if this is a stupid question, but I am curious on opendistro RPM installation guide, does opendistro for elasticsearch requires a JDK instead of a JRE

regards  
Ratheesh Nair

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**Author:** ![vinooamzn](https://avatars.discourse-cdn.com/v4/letter/v/b2d939/32.png) [@vinooamzn](https://forum.opensearch.org/u/vinooamzn)\
**Post date:** [July 5, 2019, 3:48am UTC](https://forum.opensearch.org/t/opendistro-requires-jdk-instead-of-jre/993/2 "2019-07-05T03:48:40Z")

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Yes it requires a JDK and not just a JRE, as some plugins use the `tools.jar` available in the JDK.