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  1. MariaDB Server
  2. MDEV-30120

Update the wsrep_provider_options read_only value in the system_variables table.

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.11
    • N/A
    • Galera
    • None

    Description

      Update the wsrep_provider_options read_only value in the system_variables table. If plugin-wsrep-provider=ON, the server sets the wsrep_provider_options variable as read-only, but it is not reflected in the system_variables table.

      If we set plugin-wsrep-provider=OFF, the server allows changing wsrep_provider_options dynamically.

      node1:root@localhost> SELECT VARIABLE_NAME,READ_ONLY FROM information_schema.system_variables where VARIABLE_NAME like '%wsrep_provider_options%';
      +------------------------+-----------+
      | VARIABLE_NAME          | READ_ONLY |
      +------------------------+-----------+
      | WSREP_PROVIDER_OPTIONS | NO        |
      +------------------------+-----------+
      1 row in set (0.085 sec)
       
      node1:root@localhost> set global WSREP_PROVIDER_OPTIONS="gcs.fc_limit=32";
      ERROR 1238 (HY000): Variable 'wsrep_provider_options' is a read only variable
      node1:root@localhost> 
      

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              jplindst Jan Lindström (Inactive)
              ramesh Ramesh Sivaraman
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                Updated:
                Resolved:

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