This is related to the new metrics in SERVER-47863.
After calling db.adminCommand({ replSetGetStatus: 1, initialSync: 1 }).initialSyncStatus.remainingInitialSyncEstimatedMillis, sometimes this will return a value before data starts copying, but once data begins to copy the value is always 0.
Tested on mongod-4.9.0-alpha-596-g4437864
- is related to
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SERVER-70686 remainingInitialSyncEstimatedMillis progresses through negative values
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- Closed
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SERVER-47863 Initial Sync Progress Metrics
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- Closed
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