add docs saying mixed-cluster ILM is not supported (#37954)

Closes #37085.
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Tal Levy 2019-02-04 17:00:40 -08:00 committed by GitHub
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@ -46,6 +46,16 @@ to a single shard.
. After 7 days, move the index into the cold stage and move it to less expensive
hardware.
. Delete the index once the required 30 day retention period is reached.
[IMPORTANT]
===========================
{ilm} does not support mixed-version cluster usage. Although it
may be possible to create such new policies against
newer-versioned nodes, there is no guarantee they will
work as intended. New policies using new actions that
do not exist in the oldest versioned node will cause errors.
===========================
--
include::getting-started-ilm.asciidoc[]