EC
1721
MySQLERRORNotablePluginHIGH confidence

INSTALL PLUGIN is not permitted for this plugin

Production Risk

Low — operation rejected; server state unchanged.

What this means

The plugin was built with the PLUGIN_OPT_NO_INSTALL flag, meaning it can only be loaded via the --plugin-load server startup option and not dynamically via INSTALL PLUGIN.

Why it happens
  1. 1Attempting dynamic installation of a plugin that requires static loading.
How to reproduce
trigger — this will error
trigger — this will error
INSTALL PLUGIN ndbcluster SONAME 'ndbcluster.so';

expected output

ERROR 1721 (HY000): Plugin 'ndbcluster' cannot be installed.

Fix

Load the plugin via server startup configuration

Load the plugin via server startup configuration
-- In my.cnf:
-- plugin-load-add=ndbcluster.so
-- Then restart MySQL.

Why this works

Plugins requiring static loading must be specified in the server startup configuration.

What not to do

✕

Sources
Official documentation ↗

MySQL 8.0 — 1721 ER_PLUGIN_NO_INSTALL

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