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@@ -26,6 +26,12 @@
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same cluster name. Each cluster has a single master node which is
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chosen automatically by the cluster and which can be replaced if the
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current master node fails.
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+
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+[[glossary-ccr]] {ccr} (CCR)::
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+
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+ The {ccr} feature enables you to replicate indices in remote clusters to your
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+ local cluster. For more information, see
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+ {stack-ov}/xpack-ccr.html[{ccr-cap}].
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[[glossary-document]] document ::
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@@ -42,12 +48,6 @@
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<<glossary-source_field,`_source` field>>, which is returned by default when
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getting or searching for a document.
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-[[glossary-id]] id ::
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-
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- The ID of a <<glossary-document,document>> identifies a document. The
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- `index/id` of a document must be unique. If no ID is provided,
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- then it will be auto-generated. (also see <<glossary-routing,routing>>)
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-
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[[glossary-field]] field ::
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A <<glossary-document,document>> contains a list of fields, or key-value
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@@ -69,6 +69,17 @@
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in a <<query-filter-context,filter context>>,
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hence it is called a filter. Filters are simple checks for set inclusion or exclusion.
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In most cases, the goal of filtering is to reduce the number of documents that have to be examined.
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+
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+[[glossary-follower-index]] follower index ::
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+
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+ Follower indices are the target indices for <<glossary-ccr,{ccr}>>. They exist
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+ in your local cluster and replicate <<glossary-leader-index,leader indices>>.
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+
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+[[glossary-id]] id ::
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+
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+ The ID of a <<glossary-document,document>> identifies a document. The
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+ `index/id` of a document must be unique. If no ID is provided,
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+ then it will be auto-generated. (also see <<glossary-routing,routing>>)
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[[glossary-index]] index ::
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@@ -79,6 +90,12 @@
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An index is a logical namespace which maps to one or more
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<<glossary-primary-shard,primary shards>> and can have zero or more
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<<glossary-replica-shard,replica shards>>.
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+
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+[[glossary-leader-index]] leader index ::
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+
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+ Leader indices are the source indices for <<glossary-ccr,{ccr}>>. They exist
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+ on remote clusters and are replicated to
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+ <<glossary-follower-index,follower indices>>.
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[[glossary-mapping]] mapping ::
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Lisa Cawley