Common SQL Errors

MySQL Error 3091: ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID - How to Fix and Prevent

Galaxy Team
August 8, 2025

The server could not write a DROP DATABASE statement to the binary log because some tables still existed, so the GTID could not be recorded.

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What is MySQL error 3091 ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID?

ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID appears when MySQL with GTID enabled cannot fully drop a database, leaving orphan files and blocking binary logging. Remove leftover files, set GTID_NEXT to the reported GTID, and re-run DROP DATABASE to clear the error.

Error Highlights

Typical Error Message

ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID

Error Type

DDL Error

Language

MySQL

Symbol

but the database directory remains. The GTID has not been added to GTID_EXECUTED and the statement was not written to the binary log. Fix this as follows: (1) remove all files from the database directory %s; (2) SET GTID_NEXT='%s'; (3) DROP DATABASE `%s`. ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID was added in 5.7.6.

Error Code

3091

SQL State

HY000

Explanation

Table of Contents

What is MySQL error 3091 ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID?

The error is raised when a DROP DATABASE statement runs under GTID replication but cannot cleanly remove every table inside the target schema. Because the database directory still contains objects, the server refuses to write the statement to the binary log and does not add the GTID to gtid_executed.

This behavior protects replicas from diverging. Until the administrator resolves the mismatch, the schema may be half-dropped locally yet still exist on replicas, creating serious data drift.

What Causes This Error?

The most common trigger is a corrupted or orphaned .frm, .ibd, or partition file that MySQL cannot delete. File system permission issues, lingering open file handles, or crash recovery remnants also leave objects behind.

Running DROP DATABASE while tables are locked, referenced by a foreign key in another database, or being copied by backup tools can stop MySQL from deleting them and provoke the error.

How to Fix ER_CANNOT_LOG_PARTIAL_DROP_DATABASE_WITH_GTID

First confirm which files remain in the data directory, then remove them manually or with MySQL commands. Next, set GTID_NEXT to the GTID shown in the error, execute DROP DATABASE again, and finally reset GTID_NEXT to AUTOMATIC.

These steps record the failed statement in the binary log, keep the GTID sequence consistent, and fully remove the schema on every replica.

Common Scenarios and Solutions

On Linux, leftover InnoDB tablespace files (.ibd) are typical. Stopping MySQL, deleting the files, and restarting lets DROP DATABASE succeed. On Windows, antivirus software may lock files; disabling the scanner during the operation fixes the problem.

If foreign keys in another schema block deletion, drop or alter those constraints first, then retry the database drop.

Best Practices to Avoid This Error

Always drop individual tables before dropping the database when running important production operations. Verify no process is accessing the schema and ensure backups are not running.

Use a modern SQL editor like Galaxy that highlights object dependencies and warns when foreign keys or locks could block a drop, reducing surprises during DDL.

Related Errors and Solutions

ER_DROP_TABLESPACE_EXISTS arises when files remain after a failed tablespace drop. ER_TABLE_EXISTS_ERROR appears if you attempt to recreate an already partially dropped table. Handling the orphaned files similarly resolves these issues and keeps GTID sequences valid.

Common Causes

Leftover table files

Orphaned .frm or .ibd files in the database directory stop DROP DATABASE from succeeding.

File system permissions

MySQL lacks rights to delete files, often after manual chmod or chown changes.

Open file handles

Backup or monitoring processes keep table files open, blocking removal.

Foreign key constraints

Tables in other schemas reference objects in the target database, preventing deletion.

Related Errors

ER_DROP_TABLESPACE_EXISTS

Tablespace file not removed; delete file then retry DROP TABLESPACE.

ER_TABLE_EXISTS_ERROR

Table creation fails because remnants of the same name exist; clean the directory.

ER_GTID_NEXT_TYPE_UNDEFINED_GROUP

Incorrect GTID_NEXT assignment; set GTID_NEXT properly before manual statements.

FAQs

Does this error occur without GTID enabled?

No. Without GTID mode, MySQL will still warn about partial drops but does not block binary logging the same way.

Can I ignore the error if the database is already gone?

Ignoring leaves GTID gaps and makes replicas inconsistent. Always clean files and replay the GTID.

How does Galaxy help?

Galaxy surfaces object dependencies and live locks in its SQL editor, letting you spot blockers before issuing DROP DATABASE.

Is downtime required?

Usually no; you can remove orphaned files and replay the GTID during normal operation, but ensure backups are paused.

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