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* Add post 2.10 remote store tweaks. Signed-off-by: Naarcha-AWS <naarcha@amazon.com> * Fix comment about node types. Signed-off-by: Naarcha-AWS <naarcha@amazon.com> * Apply suggestions from code review Co-authored-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com> Signed-off-by: Naarcha-AWS <97990722+Naarcha-AWS@users.noreply.github.com> --------- Signed-off-by: Naarcha-AWS <naarcha@amazon.com> Signed-off-by: Naarcha-AWS <97990722+Naarcha-AWS@users.noreply.github.com> Co-authored-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com>
40 lines
1.7 KiB
Markdown
40 lines
1.7 KiB
Markdown
---
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layout: default
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title: Shallow snapshots
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nav_order: 15
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parent: Remote-backed storage
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grand_parent: Availability and recovery
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---
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# Shallow snapshots
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Shallow copy snapshots allow you to reference data from an entire remote-backed repository instead of storing all of the data from the segment in a snapshot repository. This makes accessing segment data faster than using normal snapshots because segment data is not stored in the snapshot repository.
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## Enabling shallow snapshots
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Use the [Snapshot API]({{site.url}}{{site.baseurl}}/api-reference/snapshots/create-repository/) and set the `remote_store_index_shallow_copy` repository setting to `true` to enable shallow snapshot copies, as shown in the following example:
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```bash
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PUT /_snapshot/snap_repo
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{
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"type": "s3",
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"settings": {
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"bucket": "test-bucket",
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"base_path": "daily-snaps",
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"remote_store_index_shallow_copy": true
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}
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}
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```
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{% include copy-curl.html %}
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Once enabled, all requests using the [Snapshot API]({{site.url}}{{site.baseurl}}/api-reference/snapshots/index/) will remain the same for all snapshots. After the setting is enabled, we recommend not disabling the setting. Doing so could affect data durability.
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## Considerations
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Consider the following before using shallow copy snapshots:
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- Shallow copy snapshots only work for remote-backed indexes.
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- All nodes in the cluster must use OpenSearch 2.10 or later to take advantage of shallow copy snapshots.
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- The `incremental` file count and size between the current snapshot and the last snapshot is `0` when using shallow copy snapshots.
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- Searchable snapshots are not supported inside shallow copy snapshots.
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