Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-36005

`IndexCatalogEntryImpl::_catalogIsReady` is unsafe to unconditionally call.

    XMLWordPrintable

Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.0.2, 4.1.2
    • Storage
    • None
    • Fully Compatible
    • ALL
    • v4.0
    • Storage NYC 2018-07-30
    • 19

    Description

      The condition added here is to guard against WT snapshot isolation with read timestamp semantics where a read timestamp of T can sometimes not see committed updates [index build completions] at time < T if the WT transaction were opened before the update [index build] was committed.

      However, while it's possible the timing of events would show storage seeing an index as building, but not complete, it's also possible the storage engine doesn't see the index build having begun. In that circumstance, a call to `_catalogIsReady` is fatal.

      Attachments

        Issue Links

          Activity

            People

              dewal.gupta Dewal Gupta
              daniel.gottlieb@mongodb.com Daniel Gottlieb
              Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: