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Use of License in DBPlusEngine-Proxy

Use of License in DBPlusEngine-Proxy #

Background #

Function of LicenseDescription
limit durationLimit the duration of DBPlusEngine.
limit resourcesLimit the number of storage nodes created by the DBPlusEngine.
limit ProxyLimit the number of instances created by DBPlusEngine-Proxy in a single cluster.
limit DriverLimit the number of instances created by DBPlusEngine-Driver in a single cluster.
limit versionsLimit the version of the DBPlusEngine instance in a stand-alone or cluster.
MAC address of the hardware deviceLimit the MAC address of the hardware device on which the computing nodes in the cluster.

Notice #

The default storage directory for the License is: config.

Procedure #

  • Execute the following command to view the license.
SHOW LICENSE INFO;
  • Use the registration code to register the license.
REGISTER LICENSE '[license-key]';
  • Use the license file to register the license.
REGISTER LICENSE '[Direct path/license-file]';
  • Use the registration code file to preview the license.
SHOW LICENSE INFO 'license-key';
  • Use the license file to preview the license.
SHOW LICENSE INFO 'Direct path/license-file';

Post-processing #

If the following error occurs, please obtain the latest license and update the license.

  • No license prompt
FATAL:  License not registered
  • Incomplete license prompt
FATAL:  Incomplete license
  • License expiration prompt
FATAL:  License is expired
  • Illegal license prompt
ERROR:  The xxx exceeds the limit of the license

No License or Performance After License Overrun #

  • Can start cluster unable to execute RDL, RUL, and RAL, can execute a small amount of RQL
  • DistSQL with the global release
  1. SHOW STORAGE UNITS
  2. SHOW *
  3. COUNT * RULES
  4. EXPORT DATABASE CONFIGURATION
  5. CONVERT YAML CONFIGURATION
  6. REGISTER LICENSE
  7. Transaction-related standard statements
  • The number of instances exceeds the limit and can be executed
  1. SET INSTANCE STATUS
  • DB’s SQL statement cannot be executed