Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-36718

Validation hook should upgrade before validating index consistency

    XMLWordPrintableJSON

Details

    • Task
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.4.18, 4.1.3
    • Testing Infrastructure
    • None
    • Fully Compatible
    • v3.4
    • Storage NYC 2018-08-27, Storage NYC 2018-09-10
    • 23

    Description

      If a big index key (>1KB) has been inserted in FCV 4.2 and then a downgrade happens, the big index key remains on disk. This makes the index validation fail in FCV 4.0 because FCV 4.0 does not allow big index keys. This behavior is expected as we wrote in the design of PM-284:

      It is expected that a big index key inserted in FCV 4.2 causes the index validation in FCV 4.0 fail. The solution is to drop the index and run validate again.

      Therefore, the fuzzer should keep in mind this assumption and not validate in this case.

      Attachments

        Issue Links

          is related to

          Task - A task that needs to be done. SERVER-43627 Remove v4.2 FCV handling from ValidationCollections JS test hook

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-37074 Validation hook should continue downgrading if a downgrade was interrupted

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-53359 jstestfuzz (mutational) fuzzer is forcing last-lts FCV during validate instead of latest

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

          Activity

            People

              xiangyu.yao@mongodb.com Xiangyu Yao (Inactive)
              xiangyu.yao@mongodb.com Xiangyu Yao (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: