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Merge pull request #62 from opensearch-project/compat

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Add Java and OS recommendations
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Andrew Etter 2021-07-09 16:35:50 -07:00 committed by GitHub
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_opensearch/install/compatibility.md Normal file
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---
layout: default
title: Compatibility
parent: Install OpenSearch
nav_order: 2
---
# Operating system and JVM compatibility
- We recommend installing OpenSearch on RHEL- or Debian-based Linux distributions that use [systemd](https://en.wikipedia.org/wiki/Systemd), such as CentOS, Amazon Linux 2, and Ubuntu (LTS). OpenSearch should work on many Linux distributions, but we only test a handful.
- The OpenSearch tarball ships with a compatible version of Java in the `jdk` directory. To find its version, run `./jdk/bin/java -version`. For example, the OpenSearch 1.0.0 tarball ships with Java 15 (non-LTS).
{% comment %}`./jdk/bin/java -version` doesn't work on macOS with zsh at the moment, and I have no idea why. Maybe we need a macOS artifact. Regardless, the command works on Amazon Linux 2 with bash and presumably other distros. - aetter{% endcomment %}
To use a different Java installation, set the `OPENSEARCH_JAVA_HOME` environment variable to the Java install location. We recommend Java 11 (LTS), but OpenSearch also works with Java 8.
OpenSearch version | Compatible Java versions | Recommended operating systems
:--- | :--- | :---
1.x | 8, 11 | Red Hat Enterprise Linux 7, 8; CentOS 7, 8; Amazon Linux 2; Ubuntu 16.04, 18.04, 20.04

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_opensearch/install/docker.md
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layout: default layout: default
title: Docker title: Docker
parent: Install OpenSearch parent: Install OpenSearch
nav_order: 1 nav_order: 3
--- ---
# Docker image # Docker image
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To check available versions, see [Docker Hub](https://hub.docker.com/u/opensearchproject). To check available versions, see [Docker Hub](https://hub.docker.com/u/opensearchproject).
OpenSearch images use `centos:7` as the base image. If you run Docker locally, we recommend allowing Docker to use at least 4 GB of RAM in **Preferences** > **Resources**. OpenSearch images use `amazonlinux:2` as the base image. If you run Docker locally, set Docker to use at least 4 GB of RAM in **Preferences** > **Resources**.
--- ---