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23 changes: 22 additions & 1 deletion docs/reference/ccr/requirements.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -42,4 +42,25 @@ The number of soft deletes to retain. Soft deletes are collected during merges
on the underlying Lucene index yet retained up to the number of operations
configured by this setting. The default value is `0`.

For more information about index settings, see {ref}/index-modules.html[Index modules].
For more information about index settings, see {ref}/index-modules.html[Index modules].

[float]
[[ccr-overview-beats]]
==== Setting soft deletes on indices created by APM Server or Beats

If you want to replicate indices created by APM Server or Beats, and are
allowing APM Server or Beats to manage index templates you will want to add some

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I would state this more directly and say:

If you want to replicate indices created by APM Server or Beats, and are
allowing APM Server or Beats to manage index templates, you need to
enable soft deletes. To enable soft deletes, add the following settings
to the APM Server or Beats configuration file.

settings to enable soft deletes. For example, you could make the following
changes to the relevant APM Server or Beats configuration file.

["source","yaml"]
----------------------------------------------------------------------
setup.template.overwrite: true
setup.template.settings:
index.soft_deletes.enabled: true
index.soft_deletes.retention.operations: 1024
----------------------------------------------------------------------

For additional information on controlling the index templates managed by APM
Server or Beats, see the relevant documentation on loading the Elasticsearch
index template.