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Starting from v7.0, a new configurable server parameter `rangeDeleterHighPriority` is present on mongod , taking effect only on sharded clusters.
This is the description: "By default, this parameter is set to 'false' meaning that orphaned documents cleanup have a lower priority than user operations. Setting this parameter to true prioritizes their deletion over user operations."
Description of Linked Ticket
The range deleter can serve as a long running background task that causes lag in user operations when the system is under heavy load. Explore deprioritizing range deletions and the imapact
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