MySQL cannot open an internal table required by a plugin, so the plugin fails to initialize or operate.
ER_PLUGIN_FAILED_TO_OPEN_TABLE means a MySQL plugin could not open the table it needs. Check file permissions, repair or recreate the table, and restart the server to restore normal operation.
ER_PLUGIN_FAILED_TO_OPEN_TABLE
MySQL raises ER_PLUGIN_FAILED_TO_OPEN_TABLE when a storage engine or plugin cannot open an internal table that it needs to operate. The error message includes the schema, table, and plugin name so you can identify the failing component.
The condition was introduced in MySQL 5.7.22 and usually appears during server start, plugin load, or query execution that triggers a plugin action. Fixing it quickly is critical because the affected plugin may refuse to start, leaving data inaccessible or degrading performance.
Missing or incorrect file system permissions prevent the MySQL process from reading or writing the physical table files.
Corrupted .frm, .ibd, or .myd files stop the plugin from interpreting the table definition.
Incompatible plugin version or an incomplete upgrade leaves metadata out of sync with the binary or table definition.
The table was dropped, renamed, or moved outside MySQL, so the plugin references a path that no longer exists.
First, identify the plugin and table in the server error log. Confirm the table exists in the data directory and that the mysql user owns the files.
If files are present, run CHECK TABLE and REPAIR TABLE to heal logical corruption or restore from backup if repair fails.
Verify plugin compatibility with SHOW PLUGINS. Reinstall or upgrade the plugin to match the server version.
After corrections, restart MySQL and monitor the log to confirm the error has cleared.
On replication setups, the table exists on the master but not the replica. Create the table manually or run mysqlpump to sync.
During upgrade, the audit plugin fails to open its log table. Re-run mysql_upgrade or reinstall the plugin .so file.
SELinux blocks the mysqld process from opening the file. Update the security context or disable SELinux for the directory.
Keep plugins and server versions in lockstep during upgrades to avoid metadata mismatches.
Store data on filesystems with stable permissions and monitor for unexpected ownership changes.
Enable periodic CHECK TABLE jobs and nightly backups so corruption can be fixed with minimal data loss.
Track DDL changes in version control or with a tool like Galaxy so renamed or dropped tables are documented and discoverable.
ER_PLUGIN_IS_NOT_LOADED indicates the plugin binary failed to load, often preceding table open failures.
ER_TABLE_CORRUPT signals that the table structure itself is damaged; repair or restore the table.
ER_CANT_OPEN_FILE points to the underlying filesystem denying access, not the plugin layer.
Mysqld lacks read or write permission on the .frm, .ibd, or .myd files.
Physical or logical corruption prevents the plugin from recognizing the table header.
A newer or older plugin binary cannot parse the existing table structure.
The table was dropped, renamed, or not replicated to this server.
SELinux or antivirus denies mysqld the right to open the file path.
Plugin failed to load into the server, often leading to table open issues.
Server detected corruption in the table structure.
Mysqld could not access the underlying file path.
No space left on device prevents table creation or open.
Yes. If a plugin cannot open its table, data written through that plugin may be lost or inaccessible until the issue is fixed.
No. The plugin may silently disable itself, leading to missed logging, auditing, or partition maintenance.
Sometimes. If the problem is transient lock or permissions glitch, a restart clears it. Persistent issues need deeper fixes.
Galaxy surfaces server errors inline in its editor, stores trusted repair queries in shared Collections, and tracks DDL changes to reduce missing table scenarios.
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