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  1. MariaDB Server
  2. MDEV-2272

LP:809849 - spatial operations must be KILL-able

        Details

        • Type: Bug
        • Status: Closed
        • Resolution: Fixed
        • Affects Version/s: None
        • Fix Version/s: None
        • Component/s: None
        • Labels:

          Description

          Spatial operations can be very CPU intensive, and they are not killable using KILL if they do not use any table rows. This causes the following problems:

          • The RQG can not terminate randomly-generated spatial expressions that take too long to calculate, causing the test to block until the expression is calculated;
          • It is possible to DoS a server using a spatial expression. No table or update rights are required – just the ability to connect to the server are required;
          • trying to work around the limitations of SQL and the OpenGIS model via application-side logic or CONCAT tricks may produce a query that does not use any tables and is thus unkillable.

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                ratzpo Rasmus Johansson added a comment -

                Launchpad bug id: 809849

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                ratzpo Rasmus Johansson added a comment - Launchpad bug id: 809849

                  People

                  • Assignee:
                    holyfoot Alexey Botchkov
                    Reporter:
                    philipstoev Philip Stoev
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                    • Created:
                      Updated:
                      Resolved: