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  1. Node.js Driver
  2. NODE-1933

Error on cursor.hasNext()

    • Type: Icon: Bug Bug
    • Resolution: Works as Designed
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 3.2.3
    • Component/s: Core
    • Environment:
      Node v10.13.0, no Mongoose

      I get the following error while calling cursor.hasNext() method:

      (node:16012) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'high_' of null
          at Long.equals (c:\Data\node\logio-promo-pricing\node_modules\mongodb-core\node_modules\bson\lib\bson\long.js:236:31)
          at nextFunction (c:\Data\node\logio-promo-pricing\node_modules\mongodb-core\lib\cursor.js:466:16)
          at Cursor.next (c:\Data\node\logio-promo-pricing\node_modules\mongodb-core\lib\cursor.js:766:3)
          at Cursor._next (c:\Data\node\logio-promo-pricing\node_modules\mongodb\lib\cursor.js:216:36)
          at nextObject (c:\Data\node\logio-promo-pricing\node_modules\mongodb\lib\operations\cursor_ops.js:192:10)
          at hasNext (c:\Data\node\logio-promo-pricing\node_modules\mongodb\lib\operations\cursor_ops.js:135:3)
          at c:\Data\node\logio-promo-pricing\node_modules\mongodb\lib\utils.js:433:24
          at new Promise (<anonymous>)
          at executeOperation (c:\Data\node\logio-promo-pricing\node_modules\mongodb\lib\utils.js:428:10)
          at Cursor.hasNext (c:\Data\node\logio-promo-pricing\node_modules\mongodb\lib\cursor.js:245:10)
      

      This error isn't thrown on every call of this method. I wasn't able to find any pattern when it is thrown. I have a suspicion it can be on repeated call of hasNext() but I'm not sure.

      db.isMaster():

      {
          "ismaster" : true,
          "maxBsonObjectSize" : 16777216,
          "maxMessageSizeBytes" : 48000000,
          "maxWriteBatchSize" : 100000,
          "localTime" : ISODate("2019-04-09T10:11:36.757Z"),
          "logicalSessionTimeoutMinutes" : 30,
          "minWireVersion" : 0,
          "maxWireVersion" : 7,
          "readOnly" : false,
          "ok" : 1.0
      }

            Assignee:
            daniel.aprahamian@mongodb.com Daniel Aprahamian (Inactive)
            Reporter:
            ruschka Vojtech Ruscka
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            Watchers:
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              Created:
              Updated:
              Resolved: