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  1. Core Server
  2. SERVER-20582

_id time reflects end of chunk instead of beginning

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Details

    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • 3.2.0-rc1
    • None
    • Diagnostics
    • Fully Compatible
    • ALL
    • Platform A (10/09/15), Platform B (10/30/15)

    Description

      The _id field of the chunk documents is a datetime at or later than the last of the samples in the chunk. The spec says it should be the "clock immediately before the record was first collected", and this is a reasonable definition, consistent with the timestamp used for the filename indicating the beginning of the samples in the file. A stable definition for these timestamps is helpful for efficient filtering of a date range when processing the files.

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            mark.benvenuto@mongodb.com Mark Benvenuto
            bruce.lucas@mongodb.com Bruce Lucas (Inactive)
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              Created:
              Updated:
              Resolved: