Introduce a mechanism to notify plugin before an index/shard folder is going to be deleted from disk#66158
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tlrx merged 4 commits intoelastic:7.xfrom Dec 10, 2020
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…s going to be deleted from disk (elastic#65926) This commit introduces a new type of listeners IndexStorePlugin.IndexFoldersDeletionListener that allows plugins to be notified when an index folder (or a shard folder) is about to be deleted from disk. This is useful for some plugins that require to take an action before folders are deleted, like searchable snapshots which should evict the cache files that are contained in the folders.
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This commit introduces a new type of listeners
IndexStorePlugin.IndexFoldersDeletionListener
that allows plugins to be notified when an index
folder (or a shard folder) is about to be deleted
from disk.
This is useful for some plugins that require to
take an action before folders are deleted, like
searchable snapshots which should evict the
cache files that are contained in the folders.
Backport of #65926 for 7.x