[doc/rados] Note that ElasticSearch 7 doesn't work. Just 6 and lower.

Signed-off-by: Zac Dover <zac.dover@gmail.com>

diff --git a/doc/radosgw/elastic-sync-module.rst b/doc/radosgw/elastic-sync-module.rst
index bb2f65d77220570a7b9800994ee67b59a7241bb7..4436390496a3e00d1b561d4e1e96c13cb45fa246 100644 (file)
--- a/doc/radosgw/elastic-sync-module.rst
+++ b/doc/radosgw/elastic-sync-module.rst
@@ -4,6 +4,9 @@ ElasticSearch Sync Module
 
 .. versionadded:: Kraken
 
+.. note::
+     As of 31 May 2020, only Elasticsearch 6 and lower are supported. ElasticSearch 7 is not supported.
+
 This sync module writes the metadata from other zones to `ElasticSearch`_. As of
 luminous this is a json of data fields we currently store in ElasticSearch.