Fix Background Merge Breaking Snapshot Restore Test (#63579) #64128
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If we run into a background merge between creating the snapshot and closing the index then with compound files we could be in a situation where we get zero file reuse on restore. Force merging before the snapshot gives us a single segment that won't change down the line so the restore always sees file reuse from the close index. Closes elastic#63476
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:Distributed Coordination/Snapshot/Restore
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Pinging @elastic/es-distributed (:Distributed/Snapshot/Restore) |
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Team:Distributed (Obsolete)
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If we run into a background merge between creating the snapshot and closing the index
then with compound files we could be in a situation where we get zero file reuse
on restore.
Force merging before the snapshot gives us a single segment that won't change down the line
so the restore always sees file reuse from the close index.
Closes #63476
backport of #63579