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  1. Core Server
  2. SERVER-34868

A cursor with the "exhaust" option does not return documents inserted in the same txn

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    • Fully Compatible
    • ALL
    • v3.6
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      /*
 * Setup cluster.
 */
var r = new ReplSetTest({nodes:2});
r.startSet();r.initiate();

var dbName = 'test';
var collName = 'test';

const sessionOptions = {causalConsistency: false};
const session = r.getPrimary().startSession(sessionOptions);
const sessionDb = session.getDatabase(dbName);
const sessionColl = sessionDb.getCollection(collName);

assert.commandWorked(sessionDb.runCommand({create: collName, writeConcern: {w: "majority"}}));
r.awaitLastOpCommitted();

/*
 * Repro
 */

session.startTransaction();

assert.writeOK(sessionColl.insert({a: 1}));
assert.eq(sessionColl.find().addOption(DBQuery.Option.exhaust).itcount(), 1);

session.commitTransaction();
session.endSession();
      Show
      /* * Setup cluster. */ var r = new ReplSetTest({nodes:2}); r.startSet();r.initiate(); var dbName = 'test' ; var collName = 'test' ; const sessionOptions = {causalConsistency: false }; const session = r.getPrimary().startSession(sessionOptions); const sessionDb = session.getDatabase(dbName); const sessionColl = sessionDb.getCollection(collName); assert.commandWorked(sessionDb.runCommand({create: collName, writeConcern: {w: "majority" }})); r.awaitLastOpCommitted(); /* * Repro */ session.startTransaction(); assert.writeOK(sessionColl.insert({a: 1})); assert.eq(sessionColl.find().addOption(DBQuery.Option.exhaust).itcount(), 1); session.commitTransaction(); session.endSession();
    • Repl 2018-05-21

      The batch size, number of inserted documents, and whether there are existing documents in the collection do not seem to matter. See repro for more detail.

        1. exhaust_in_session.js
          0.9 kB

            Assignee:
            william.schultz@mongodb.com William Schultz (Inactive)
            Reporter:
            robert.guo@mongodb.com Robert Guo (Inactive)
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              Created:
              Updated:
              Resolved: