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Type:
Task
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Status: Closed
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Priority:
Major - P3
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Resolution: Works as Designed
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Affects Version/s: None
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Fix Version/s: None
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Component/s: None
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Labels:
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Backwards Compatibility:Fully Compatible
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Epic Link:
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Sprint:Repl 2016-10-10, Repl 2016-11-21
We don't refetch documents from source because of failures of oplog application. Instead, we make sure the insert/update/delete and other index related operations never fail due to index constraints in SERVER-26202. If unexpected failures happen, e.g. DocumentTooLarge(17419), we restart the initial sync. This design is because idempotency issues may also come from rollback and unclean shutdown, in the latter cases a sync source may not be available.