Details
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Bug
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Resolution: Incomplete
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Major - P3
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None
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2.5.5
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ALL
Description
In a workload where explain() is called a lot I've lately seen a certain regression in throughput.
I was able to isolate the commit that caused the problem.
https://github.com/mongodb/mongo/commit/6dd40e54de4d62ed1c649f6f620a574e6de74fa8
The throughput looks like 20% less and I'm completely able to recover if I revert to the previous revision. See screenshot attached.