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Description

MySQL Error 1527 occurs when an option within a `CREATE TABLESPACE` or `ALTER TABLESPACE` statement is specified more than once. MySQL does not permit redundant or repeated definitions for certain tablespace parameters, leading to this error during statement execution.

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Error Message

It is not allowed to specify %s more than once

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Known Causes

4 known causes

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Duplicate DATAFILE Clause

The `DATAFILE` path or other storage-related options are specified more than once in a single `CREATE TABLESPACE` statement.

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Repeated ENGINE Option

The `ENGINE` type, such as `INNODB`, is provided more than once when defining or modifying a tablespace.

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Redundant AUTOEXTEND_SIZE

The `AUTOEXTEND_SIZE` parameter is included multiple times in the same `CREATE TABLESPACE` or `ALTER TABLESPACE` statement.

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Other Duplicate Tablespace Parameters

Any other tablespace-specific parameter (e.g., `INITIAL_SIZE`, `MAX_SIZE`) is accidentally repeated in the statement.

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Solutions

3 solutions available

1. Identify and Remove Duplicate Tablespace Options in `CREATE TABLE` Statement easy

Correctly format your `CREATE TABLE` statement by ensuring no tablespace-related options are repeated.

1

Carefully examine the `CREATE TABLE` statement that is causing the error. Look for any options related to tablespaces, such as `tablespace_name` or `DATAFILE` clauses.

2

Identify if any of these tablespace-related options are specified more than once within the same `CREATE TABLE` statement.

3

Remove the duplicate occurrence of the tablespace option. MySQL only allows each option to be specified once.

Example of a problematic statement:
CREATE TABLE my_table (
    id INT PRIMARY KEY
) ENGINE=InnoDB DATAFILE='/path/to/data1.ibd' DATAFILE='/path/to/data2.ibd';

Corrected statement:
CREATE TABLE my_table (
    id INT PRIMARY KEY
) ENGINE=InnoDB DATAFILE='/path/to/data1.ibd';

Or if using tablespace_name:
CREATE TABLE my_table (
    id INT PRIMARY KEY
) ENGINE=InnoDB TABLESPACE=my_tablespace TABLESPACE=another_tablespace;

Corrected statement:
CREATE TABLE my_table (
    id INT PRIMARY KEY
) ENGINE=InnoDB TABLESPACE=my_tablespace;

4

Re-execute the corrected `CREATE TABLE` statement.

2. Review `ALTER TABLE` Statements for Duplicate Tablespace Configurations medium

Check and correct `ALTER TABLE` statements that attempt to reconfigure tablespaces with redundant options.

1

If the error occurs during an `ALTER TABLE` operation, inspect the statement for any `ADD DATAFILE`, `CHANGE DATAFILE`, or `TABLESPACE` clauses.

2

Verify that no tablespace-related options are being applied multiple times in the same `ALTER TABLE` statement. This is particularly common if you are trying to move a table to a new tablespace and accidentally include the `TABLESPACE` option twice or specify multiple `DATAFILE` options when only one is permitted for certain operations.

Example of a problematic statement:
ALTER TABLE my_table
ADD DATAFILE '/path/to/new_data.ibd' DATAFILE '/path/to/another_new_data.ibd';

Corrected statement:
ALTER TABLE my_table
ADD DATAFILE '/path/to/new_data.ibd';

Or if trying to move to a new tablespace:
ALTER TABLE my_table
TABLESPACE=new_tablespace TABLESPACE=yet_another_tablespace;

Corrected statement:
ALTER TABLE my_table
TABLESPACE=new_tablespace;

3

Remove the redundant tablespace option from the `ALTER TABLE` statement.

4

Execute the corrected `ALTER TABLE` statement.

3. Inspect `CREATE LOGFILE GROUP` Statements for Duplicate Options medium

Ensure that when creating log file groups, each option is specified only once.

1

If the error occurs when creating a log file group, examine the `CREATE LOGFILE GROUP` statement.

2

Look for any options that might be repeated. While less common than with `CREATE TABLE`, it's possible to accidentally specify options like `INITIAL_SIZE` or `UNDO_BUFFER_SIZE` more than once.

Example of a problematic statement:
CREATE LOGFILE GROUP my_log_group
ADD LOGFILE 'log1.log' SIZE 10M, 'log2.log' SIZE 10M INITIAL_SIZE 20M INITIAL_SIZE 30M;

Corrected statement:
CREATE LOGFILE GROUP my_log_group
ADD LOGFILE 'log1.log' SIZE 10M, 'log2.log' SIZE 10M INITIAL_SIZE 30M;

3

Remove any duplicate options from the `CREATE LOGFILE GROUP` statement.

4

Execute the corrected `CREATE LOGFILE GROUP` statement.

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Related Errors

5 related errors

MySQL Error 1527: Duplicate Tablespace Option