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Lazy snapshot restores #50999

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@DaveCTurner

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@DaveCTurner

Today when users restore a snapshot Elasticsearch creates an index by copying the contents of the repository onto disk, and only starts each shard once the copy is complete. However in many cases we do not need to copy the whole shard to disk before being able to search it. This meta-issue tracks the work towards an alternative restore mode which works lazily, starting the shard up after restoring only a fraction of the data and restoring the remaining data in the background and/or as needed to serve searches.

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      @tlrx@DaveCTurner

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        Lazy snapshot restores · Issue #50999 · elastic/elasticsearch