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  1. Node.js Driver
  2. NODE-1420

Cursor session id (none) is not the same as the operation context's

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Critical - P2 Critical - P2
    • 3.1.0, 3.0.8
    • Affects Version/s: 3.0.6
    • Component/s: Core, Native
    • Environment:
      linux, mongo shard cluster, connecting to a mongos instance via ssh tunnel

      1.) Only one collection and especially one query is failin: Guess it has either todo with the content or with the length of the result?
      2.) it is only happening if I set readPreference expicity to "primaryPreferred".

      Test script:
      Import the attached file "buggycollection1.json" like this into a mongo db shard cluster / connect to a mongos:
      mongoimport -h localhost -d mongo-bug-sessions -c buggycollection1 buggycollection1.json

      const mongodb = require('mongodb');

const conf = {
    opts: {
        readPreference: 'primaryPreferred'
    },
    url: 'mongodb://mongos-instance/mongo-bug-sessions'
};

mongodb.MongoClient.connect(
    conf.url,
    conf.opts
)
    .then((client) => {
        console.log(new Date(), 'connected');
        client.on('close', () => console.log('closed'));
        client.on('reconnect', () => console.log('reconnect'));
        client.on('disconnect', () => console.log('disconnect'));

        const db = client.db('mongo-bug-sessions');

        db.collection('buggycollection1').find({lang: 'de'}).toArray()
            .then((translations) => {
                console.log('A', !!translations);
            });
    });

      Output: 

      /usr/local/bin/node /home/simon/Dev/Web/hokify-server/helpers/mongodbtest2.js
2018-04-19T08:45:25.804Z 'connected'
(node:9721) UnhandledPromiseRejectionWarning: MongoError: Cursor session id (none) is not the same as the operation context's session id (c9b18612-f8b1-4efb-a2a8-b2319b5d78f2 - 0rbp3hXFaGQzW/eEz2QZrZ7et36CzL3bnxgnuRX9rEo=)
    at /home/simon/Dev/Web/hokify-server/node_modules/mongodb-core/lib/connection/pool.js:599:61
    at authenticateStragglers (/home/simon/Dev/Web/hokify-server/node_modules/mongodb-core/lib/connection/pool.js:516:16)
    at Connection.messageHandler (/home/simon/Dev/Web/hokify-server/node_modules/mongodb-core/lib/connection/pool.js:552:5)
    at emitMessageHandler (/home/simon/Dev/Web/hokify-server/node_modules/mongodb-core/lib/connection/connection.js:309:10)
    at Socket.<anonymous> (/home/simon/Dev/Web/hokify-server/node_modules/mongodb-core/lib/connection/connection.js:452:17)
    at Socket.emit (events.js:159:13)
    at addChunk (_stream_readable.js:265:12)
    at readableAddChunk (_stream_readable.js:252:11)
    at Socket.Readable.push (_stream_readable.js:209:10)
    at TCP.onread (net.js:608:20)
(node:9721) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:9721) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

      See also realted issue on mongoose tracker: https://github.com/Automattic/mongoose/issues/6357

      Thanks
      Simon

        1. full_debub.log
          68 kB
        2. buggycollection1.json
          186 kB

            Assignee:
            daniel.aprahamian@mongodb.com Daniel Aprahamian (Inactive)
            Reporter:
            s.tretter@gmail.com Simon Tretter
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            Watchers:
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              Created:
              Updated:
              Resolved: