Yannick Welsch 9e24a54382 Clean existing index folder when loading searchable snapshot (#60122)
Closing a regular index and mounting a snapshot-backed index into that existing index does not clean the existing index
folders of those preexisting shards.

This PR removes the existing Lucene / translog files once the searchable snapshot shard is starting up. Future PRs will
make reuse of the existing index files to populate the cache.
2020-08-03 13:19:11 +02:00
..

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