Details
Description
MongoDB serializes the creation of new WiredTiger transactions for local secondary reads (i.e. lastApplied reads) and readConcern: majority reads.
WT-6709 recently addressed performance problems in the WiredTiger timestamp queues that should make these mutexes unnecessary. Investigate removing both of these mutexes to potentially support higher read throughput.
See SERVER-51041 for more details.
Attachments
Issue Links
- causes
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SERVER-63244 Majority reads must round their read timestamp up to the oldest timestamp
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- Closed
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- is depended on by
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SERVER-55024 Complete TODO listed in WT-6709
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- Closed
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- is related to
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WT-9074 Reconsider spinlocks in transaction ID allocation path
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- Open
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- related to
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- Closed
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- Closed
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