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  1. MariaDB Server
  2. MDEV-4885

When performance schema is disabled, autosized parameters show 18446744073709551615 instead of -1

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • None
    • 10.0.4
    • None
    • None

    Description

      Value of an autosized parameter in performance schema is supposed to be -1 when the performance schema is disabled. It works in MySQL 5.6.10, but not in 10.0 tree:

      MySQL [test]> select @@performance_schema_max_table_instances;
      		 
      +------------------------------------------+
      		 
      | @@performance_schema_max_table_instances |
      		 
      +------------------------------------------+
      		 
      |                                       -1 |
      		 
      +------------------------------------------+
      		 
      1 row in set (0.00 sec)
      		 
       
      		 
      MySQL [test]> select @@performance_schema;
      		 
      +----------------------+
      		 
      | @@performance_schema |
      		 
      +----------------------+
      		 
      |                    0 |
      		 
      +----------------------+
      		 
      1 row in set (0.00 sec)
      		 
       
      		 
      MySQL [test]> select @@version;
      		 
      +-----------+
      		 
      | @@version |
      		 
      +-----------+
      		 
      | 5.6.10    |
      		 
      +-----------+
      		 
      1 row in set (0.00 sec)
      		 

      MariaDB [test]> select @@performance_schema_max_table_instances;
      		 
      +------------------------------------------+
      		 
      | @@performance_schema_max_table_instances |
      		 
      +------------------------------------------+
      		 
      |                     18446744073709551615 |
      		 
      +------------------------------------------+
      		 
      1 row in set (0.00 sec)
      		 
       
      		 
      MariaDB [test]> select @@performance_schema;
      		 
      +----------------------+
      		 
      | @@performance_schema |
      		 
      +----------------------+
      		 
      |                    0 |
      		 
      +----------------------+
      		 
      1 row in set (0.00 sec)
      		 
       
      		 
      MariaDB [test]> select @@version;
      		 
      +----------------------+
      		 
      | @@version            |
      		 
      +----------------------+
      		 
      | 10.0.3-MariaDB-debug |
      		 
      +----------------------+
      		 
      1 row in set (0.00 sec)

      Attachments

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. MDEV-4873 Tasks before 10.0.4-release

          • Major - Major loss of function.
          • Closed

          Activity

            timour Timour Katchaounov (Inactive) added a comment -

            Got patch from Serg in the end.

            timour Timour Katchaounov (Inactive) added a comment - Got patch from Serg in the end.

            People

              timour Timour Katchaounov (Inactive)
              elenst Elena Stepanova
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              Dates

                Created:
                Updated:
                Resolved:

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