<p>MySQL cannot create a FEDERATED table because it fails to connect to or read the definition of the remote table.</p>
<p>MySQL Error 1434: ER_CANT_CREATE_FEDERATED_TABLE means the server could not create the FEDERATED table because the remote data source was unreachable or misconfigured. Verify the CONNECTION string, ensure the remote table exists, and confirm user privileges to resolve the issue.</p>
Can't create federated table. Foreign data src error: %s
MySQL throws Error 1434 when the server tries to create a FEDERATED table but cannot fetch the remote table definition or data.
The error text is: "Can't create federated table. Foreign data src error: %s". The %s placeholder shows the lower level cause returned by the remote source.
This error blocks table creation, halting scripts that rely on FEDERATED links for cross-server queries.
The failure appears during CREATE TABLE statements that specify ENGINE=FEDERATED or when ALTER TABLE converts a local table to FEDERATED.
It can also surface while restoring dumps that include FEDERATED tables if the target cannot reach the original host.
Unresolved, the error leaves dependent applications without access to required remote data, causing runtime failures and broken reporting pipelines.
Production environments may experience downtime if critical lookup or logging tables fail to initialize.
Network issues, authentication failures, or mismatched schemas are typical triggers. The server aborts creation as soon as any validation step fails.
Incorrect CONNECTION strings are the most frequent culprit, especially after host migrations or password changes.
Start by confirming the remote host, port, database, and table names in the CONNECTION string. Validate credentials and privileges next. Finally, ensure column definitions are identical on both sides.
If the remote table was renamed, recreate it or update the CONNECTION string. When the remote server enforces SSL, add the SSL parameters in the federated connection options.
During backups, exclude FEDERATED tables or create the underlying table on the target host before import.
Store CONNECTION strings in environment variables and regenerate CREATE TABLE statements with CI pipelines to keep them current.
Run periodic health checks from Galaxy or a cron job that selects one row from each FEDERATED table to detect connectivity loss early.
Other remote-access errors like ER_PLUGIN_IS_DISABLED or ER_TABLEACCESS_DENIED_ERROR often share root causes. Fixing network or privilege settings usually resolves them together.
The host or port in the CONNECTION string cannot be contacted due to DNS issues, firewalls, or downtime.
The referenced table name is misspelled or was dropped, so the remote server returns an unknown table error.
The user lacks SELECT access on the remote table, causing authentication to succeed but metadata retrieval to fail.
The remote table structure changed, and the local CREATE statement no longer aligns with it.
Missing user:password@ or db.tablename segments lead to parse failures during connection setup.
The FEDERATED storage engine plugin is disabled, so all federated operations fail.
The user lacks permissions to access the remote table, producing a privilege-related denial.
The target database in the CONNECTION string does not exist on the remote server.
The CONNECTION string format is invalid, leading to parsing issues before connection attempts.
Yes. Use the --ignore-table option with mysqldump or exclude them via a where clause in Galaxy export scripts.
No. It only impacts tables that use the FEDERATED engine because they depend on external data sources.
Galaxy stores and versions your CREATE statements, making it easy to audit CONNECTION strings and roll back risky changes.
Only if the remote server enforces it. Append ssl=true and related parameters in the CONNECTION string when needed.
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