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  1. Core Server
  2. SERVER-53907

Donors should report approxBytesToClone and approxDocumentsToClone

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    • Fully Compatible
    • Sharding 2021-02-22
    • 1

    Description

      Should record these metrics in the DonorShardEntry of the coordinator document.

      Donor shards report these numbers for their slice of the data when reporting their minFetchTimestamp and for the coordinator to propagate the sum to recipient shards

      metrics source:
      https://github.com/mongodb/mongo/blob/06b4a33530bfd58fab55e1fdda506b51f75f1ec5/src/mongo/db/catalog/collection.h#L526-L528

      update minFetchTimestamp for the coordinator:
      https://github.com/mongodb/mongo/blob/06b4a33530bfd58fab55e1fdda506b51f75f1ec5/src/mongo/db/s/resharding/resharding_donor_service.cpp#L436

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              lamont.nelson@mongodb.com Lamont Nelson
              lamont.nelson@mongodb.com Lamont Nelson
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