ob_log_level

Description

ob_log_level specifies the log level for a session. If this variable is not specified, the log level of the system is used.

Privilege requirements

• Query variables

  • Global level

    Both the sys tenant and user tenants can execute the SHOW VARIABLES statement or view SYS.TENANT_VIRTUAL_GLOBAL_VARIABLE (Oracle mode) or information_schema.GLOBAL_VARIABLES (MySQL mode) to query the value of a global system variable.

  • Session level

    Both the sys tenant and user tenants can execute the SHOW VARIABLES statement or view SYS.TENANT_VIRTUAL_SESSION_VARIABLE (Oracle mode) or information_schema.SESSION_VARIABLES (MySQL mode) to query the value of a session system variable.

• Modify variables

  • Global level

    • The sys tenant can directly modify the value of a global system variable.

    • MySQL user tenants must have the SUPER or ALTER SYSTEM privilege to modify the value of a global system variable.

    • Oracle user tenants must have the ALTER SYSTEM privilege to modify the value of a global system variable.

  • Session level

    The sys tenant and user tenants can directly modify the value of a session system variable in their own tenants.

Attributes

Usage

If the value of ob_log_level is disabled, the system uses the global log level, which is controlled by the syslog_level parameter.

Examples

Set the session-level log level to INFO.

• Session level

  obclient> SET ob_log_level ='INFO';
  

• Global level

  obclient> SET GLOBAL ob_log_level ='INFO';
  

References

For more information about system logs, see Overview