Use ClusterState as Consistency Source for Snapshot Repositories (#49060) #50267
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…stic#49060) Follow up to elastic#49729 This change removes falling back to listing out the repository contents to find the latest `index-N` in write-mounted blob store repositories. This saves 2-3 list operations on each snapshot create and delete operation. Also it makes all the snapshot status APIs cheaper (and faster) by saving one list operation there as well in many cases. This removes the resiliency to concurrent modifications of the repository as a result and puts a repository in a `corrupted` state in case loading `RepositoryData` failed from the assumed generation.
original-brownbear
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:Distributed Coordination/Snapshot/Restore
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Pinging @elastic/es-distributed (:Distributed/Snapshot/Restore) |
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Follow up to #49729
This change removes falling back to listing out the repository contents to find the latest
index-Nin write-mounted blob store repositories.This saves 2-3 list operations on each snapshot create and delete operation. Also it makes all the snapshot status APIs cheaper (and faster) by saving one list operation there as well in many cases.
This removes the resiliency to concurrent modifications of the repository as a result and puts a repository in a
corruptedstate in case loadingRepositoryDatafailed from the assumed generation.backport of #49060