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@@ -0,0 +1,24 @@
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+---
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+mapped_pages:
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+ - https://www.elastic.co/guide/en/elasticsearch/reference/current/source-index-settings.html
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+navigation_title: Source settings
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+---
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+
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+# Source index settings [source-index-settings]
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+
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+All settings around the _source metadata field.
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+
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+$$$source-mode$$$
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+
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+`index.source.mode`
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+: (Static, string) The source mode for the index. Valid values are [`synthetic`](/reference/elasticsearch/mapping-reference/mapping-source-field.md#synthetic-source), [`disabled`](/reference/elasticsearch/mapping-reference/mapping-source-field.md#disable-source-field) or `stored`. Defaults to `stored`. The `stored` source mode always stores the source metadata field on disk.
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+
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+$$$recovery-use_synthetic_source$$$
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+
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+`index.recovery.use_synthetic_source`
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+: (Static, boolean) If synthetic source mode is used, whether the recovery source should also be synthesized instead of stored to disk. Defaults to `true`. This setting can only be configured if synthetic source mode is enabled.
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+
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+$$$synthetic-source-keep$$$
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+
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+`index.mapping.synthetic_source_keep`
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+: (Static, string) Controls how to retain accuracy of fields at the index level. Valid values are `none` or `arrays`.This is a subset of [synthetic source keep mapping attribute](/reference/elasticsearch/mapping-reference/mapping-source-field.md#synthetic-source-keep). Defaults to `arrays` if `index.mode` is `logsdb` or otherwise `none`.
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Martijn van Groningen