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Type: Task
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Resolution: Unresolved
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Priority: Major - P3
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Affects Version/s: None
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Labels:
Customers have reported an increase in disk i/o upon upgrading from 4.4 to 5.0 (See SERVER-71503 and SERVER-54939.)
In version 5.0 and later, we introduced the tunable parameter oplogBatchDelayMillis to fix this problem. We should also document this in the 4.4 to 5.0 upgrade considerations