Debug Information in mysqldump

The mysqldump command in MySQL is used to create backups of MySQL databases. One of the options available is --debug-info, which includes additional debugging information in the output of mysqldump. This can be particularly useful for diagnosing issues or understanding the internal workings of the dump process.

Here are several examples demonstrating the usage of --debug-info in mysqldump:

Example 1:
mysqldump --debug-info -u username -p password dbname > dump.sql
This command dumps the database dbname to dump.sql while including debug information. The output file dump.sql will contain additional debug details if any issues arise during the dump process.

Example 2:
mysqldump --debug-info --single-transaction dbname > dump.sql
Here, --single-transaction ensures a consistent snapshot of the database, and --debug-info adds debugging data to the dump file dump.sql.

Example 3:
mysqldump --debug-info --skip-lock-tables dbname > dump.sql
This command skips locking tables during the dump process, making it suitable for databases with active transactions, while also providing debug information in the output file.

Example 4:
mysqldump --debug-info --routines dbname > dump.sql
Including --routines ensures that stored procedures and functions are included in the dump. Adding --debug-info provides insights into routine dump operations.

Example 5:
mysqldump --debug-info --triggers dbname > dump.sql
This command includes triggers in the dump file dump.sql and enhances it with debug information, aiding in trigger-related troubleshooting.

Example 6:
mysqldump --debug-info --no-create-db dbname > dump.sql
By using --no-create-db, the command excludes database creation statements. The addition of --debug-info gives insights into the dump process without the creation SQL statements.

Example 7:
mysqldump --debug-info --no-create-info dbname > dump.sql
Here, --no-create-info skips dumping table creation statements. Including --debug-info offers additional information about the dump operation without schema details.

Example 8:
mysqldump --debug-info --lock-tables=false dbname > dump.sql
This command disables table locking during the dump, suitable for databases with ongoing write operations. --debug-info enriches the dump file with debugging insights.

Example 9:
mysqldump --debug-info --complete-insert dbname > dump.sql
Using --complete-insert ensures complete INSERT statements in the dump file. With --debug-info, the output file includes additional debugging details about each insert operation.

Example 10:
mysqldump --debug-info --skip-comments dbname > dump.sql
By excluding comments with --skip-comments, the command simplifies the dump file. --debug-info enhances the output with detailed debug data despite skipping comments.

To verify whether the --debug-info option was executed successfully, you can inspect the content of the dump file created (dump.sql). Look for additional debug information interspersed throughout the file, providing insights into various stages of the dump process. This debug data can help diagnose any issues encountered during the database dump.

Also check similar articles.

Debug Check in mysqldump
Debugging Options in mysqldump
Dump Multiple Databases with mysqldump
Including MySQL Specific Create Options in mysqldump
Using Compression in mysqldump Output