From 262816bd2d799bb9574f7455e7529447d3bbd4be Mon Sep 17 00:00:00 2001 From: Geoff Bourne Date: Wed, 4 Jan 2017 20:43:23 -0600 Subject: [PATCH] [es] Add note about increasing mmap count --- elasticsearch/README.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/elasticsearch/README.md b/elasticsearch/README.md index 8ff08c9c..4912ac41 100755 --- a/elasticsearch/README.md +++ b/elasticsearch/README.md @@ -1,5 +1,10 @@ This Docker image provides an easily configurable Elasticsearch node. Via port mappings, it is easy to create an arbitrarily sized cluster of nodes. As long as the versions match, you can mix-and-match "real" Elasticsearch nodes with container-ized ones. +# NOTE for use on Linux hosts + +Elasticsearch 5.x requires that the virtual memory mmap count is set sufficiently for stable, +production use. [Refer to this guide for more information](https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html). + # Basic Usage To start an Elasticsearch data node that listens on the standard ports on your host's network interface: