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  1. Core Server
  2. SERVER-6947

db.createCollection creates undefined fields which cause mongorestore to fail

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • 2.2.0, 2.3.1
    • 2.2.5, 2.4.4, 2.5.0
    • Admin, Tools
    • Ubuntu 12.04 64bit using 10gen repositories
    • ALL
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      > use test
      > db.dropDatabase()
      > db.createCollection("coll")

      $ mongodump

      > db.coll.drop()

      $ mongorestore

      Show
      > use test > db.dropDatabase() > db.createCollection("coll") $ mongodump > db.coll.drop() $ mongorestore

    Description

      The db.createCollection() helper has some optional collection options which get set to undefined if they are not provided. This causes mongodump to output undefined elements which can cause mongorestore to fail.

      The documents have the form:

      { "options" : { "create" : "coll", "capped" :

      { "$undefined" : true }

      , "size" :

      { "$undefined" : true }

      }, "indexes" : [ { "v" : 1, "key" :

      { "_id" : 1 }

      , "ns" : "test.coll", "name" : "id" } ] }

      Attachments

        1. after_fix.txt
          3 kB
        2. before_fix.txt
          3 kB
        3. create_restore_test
          1 kB

        Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. SERVER-7104 jsonString has incorrect output on undefined BSON elements.

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-8408 mongodump dumps a collection with capped in metadata when it's not (anymore)

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. TOOLS-1699 3.4.5 Server causing crash in extended_json_metadata.js

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. TOOLS-1718 duplicate top level key: create

          • Major - P3 - Major loss of function.
          • Closed

          Investigation - TOOLS-1934 duplicate top level key: create

          • Major - P3 - Major loss of function.
          • Accepted
          related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-9182 mongorestore won't restore manually edited .metadata.json file if user editor adds trailing newline

          • Critical - P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-13737 CollectionOptions parser should skip "size"/"max" elements if values non-numeric

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-13968 Report invalid collection options in "<db>.system.namespaces" in upgrade checker

          • Major - P3 - Major loss of function.
          • Closed

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              Dates

                Created:
                Updated:
                Resolved: