ReadOnlyEngine should update translog recovery state information (#39238) #39251
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…stic#39238) `ReadOnlyEngine` never recovers operations from translog and never updates translog information in the index shard's recovery state, even though the recovery state goes through the `TRANSLOG` stage during the recovery. It means that recovery information for frozen shards indicates an unkown number of recovered translog ops in the Recovery APIs (translog_ops: `-1` and translog_ops_percent: `-1.0%`) and this is confusing. This commit changes the `recoverFromTranslog()` method in `ReadOnlyEngine` so that it always recover from an empty translog snapshot, allowing the recovery state translog information to be correctly updated. Related to elastic#33888
tlrx
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:Distributed Indexing/Engine
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Pinging @elastic/es-distributed |
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ReadOnlyEnginenever recovers operations from translog and neverupdates translog information in the index shard's recovery state, even
though the recovery state goes through the
TRANSLOGstage duringthe recovery. It means that recovery information for frozen shards indicates
an unkown number of recovered translog ops in the Recovery APIs
(translog_ops:
-1and translog_ops_percent:-1.0%) and this is confusing.This commit changes the
recoverFromTranslog()method inReadOnlyEngineso that it always recover from an empty translog snapshot, allowing the recovery
state translog information to be correctly updated.
Related to #33888