[SERVER-30018] Clear ChunkSizeTracker statistics on step-up Created: 06/Jul/17  Updated: 29/Jan/18  Resolved: 14/Jul/17

Status: Closed
Project: Core Server
Component/s: Sharding
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Major - P3
Reporter: Dianna Hohensee (Inactive) Assignee: Hugh Han
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Participants:

 Description   

When a shard secondary steps up to primary, its ChunkSizeTracker can have stale statistics. These should be reset.



 Comments   
Comment by Dianna Hohensee (Inactive) [ 14/Jul/17 ]

Closing as won't fix. Decided it was unnecessary to clear the ChunkSizeTracker stats on step-up, as it will be informed via the OpObserver both on secondaries and primaries and thus doesn't really get stale – auto-splitting isn't sensitive enough / making any guarantees in order to worry about rollback possibly causing differences between nodes.

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