Details
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Sub-task
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Status: Resolved
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Critical
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Resolution: Fixed
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None
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None
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None
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Reviewed
Description
To handle concurrency issues, key value based timeline storage may return null on reads that are concurrent to service stop. This is actually caused by a concurrency issue between cache reads and evicts. Specifically, if the storage is being read when it gets evicted, the storage may turn into null. EntityGroupFS timeline store needs to handle this case gracefully.