Adding a warning in the documentation on the wiki to inform users that rivers are being deprecated. Closes #10423
@@ -3,6 +3,8 @@
== Intro
+deprecated[1.5.0,Rivers have been deprecated. See https://www.elastic.co/blog/deprecating_rivers for more details]
+
A river is a pluggable service running within elasticsearch cluster
pulling data (or being pushed with data) that is then indexed into the
cluster.
Christian Rohling