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  1. Core Server
  2. SERVER-12834

Create flag to allow mongod to ignore "index too long" errors

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Details

    • New Feature
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • 2.5.4
    • 2.6.0-rc1
    • Index Maintenance
    • None
    • Fully Compatible

    Description

      In SERVER-5290, mongod correctly returns an error when trying to index a key over the maximum allowed length. There are plenty of workarounds for new applications (hash the value, truncate the value), but for existing applications with millions of documents, this causes major issues.

      Allowing users to relax this restriction will permit them to gradually deal with these bad index entries. They can use the upgradeCheck tool (SERVER-8391) provided in 2.6 to get an idea if this is something they need or not.

      To enable this flag starting in 2.6.0, start mongod with --setParameter failIndexKeyTooLong=0. It defaults to true.

      Attachments

        Issue Links

          is depended on by

          Task - A task that needs to be done. DOCS-2795 document failIndexKeyTooLong

          • Major - P3 - Major loss of function.
          • Closed
          is duplicated by

          Question - SERVER-30188 Index option to skip keys that are too large

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-3372 Allow indexing fields of arbitrary length

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-5290 fail to insert docs with fields too long to index, and fail to create indexes where doc keys are too big

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-12982 Could not restore backup data due to "key too large to index"

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-13404 2.6 secondaries abort when replicated index spec contains a dollar-sign field

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

          Activity

            People

              eliot Eliot Horowitz (Inactive)
              dan@mongodb.com Daniel Pasette (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: