Mongo Change Streams not returning all the updates to the collection

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: Querying
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      I am trying to use Change Streams to lookup/monitor the changes to a mongo collection.

      cursor = db.collection.watch(full_document='updateLookup')
      document = next(cursor)
      print document['documentKey']
      

      While using updateMany to update multiple documents at once, I'm not able to see all the changed documents. However if I update one at a time, then I see each change in the Stream.

      db.collection.updateMany( {"contacts.firstName": "XXXXXX"}, { $set: {"LocationId" : 11111} } )
      
      { "acknowledged" : true, "matchedCount" : 77, "modifiedCount" : 77 }
      

      Results:

      {u'_id': ObjectId('580694d039811a468b96fc7b')}
      {u'_id': ObjectId('58aeebed39811a468b974e97')}
      {u'_id': ObjectId('59efe28b39811a468b97b9cc')}
      

            Assignee:
            Kelsey Schubert
            Reporter:
            SAMBIT P KHANDAI
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              Created:
              Updated:
              Resolved: