Error
Error Code:
1534
MariaDB Error 1534: Binary Log Row Write Failure
Description
Error 1534 signifies that MariaDB encountered a problem writing a single row-based event to its binary log. This critical failure means that a transaction, or part of one, could not be reliably recorded, which is essential for replication and data recovery. It typically indicates an underlying issue preventing the database from maintaining a consistent transaction history.
Error Message
Writing one row to the row-based binary log failed
Known Causes
4 known causesInsufficient Disk Space
The server's disk where the binary log files are stored may have run out of free space, preventing new log entries from being written.
Binary Log File Permissions
The MariaDB server process lacks the necessary write permissions to create or append to the binary log files in its designated directory.
Underlying Storage I/O Error
Problems with the underlying storage system, such as a failing disk, corrupted filesystem, or network storage issues, can prevent write operations to the binary log.
File System Size Limits
The operating system or file system might have limits on the maximum size of a single file, which the binary log could have exceeded, especially on older systems.
Solutions
3 solutions available1. Restart the MariaDB Server easy
A simple restart can resolve temporary issues with the binary log.
1
Connect to your MariaDB server as a user with administrative privileges.
2
Gracefully shut down the MariaDB server. The command may vary depending on your operating system and installation method.
sudo systemctl stop mariadb3
Wait a few moments for the server to fully stop.
4
Start the MariaDB server again.
sudo systemctl start mariadb5
Check the MariaDB error logs for any recurring issues after the restart.
2. Check and Clear Disk Space easy
Insufficient disk space is a common cause for binary log write failures.
1
Determine the location of your MariaDB binary logs. This is typically specified by the `log_bin` and `datadir` variables in your `my.cnf` or `my.ini` configuration file.
SHOW VARIABLES LIKE 'log_bin';2
Use your operating system's disk usage tools to check the available space on the partition where your binary logs are stored.
df -h /var/lib/mysql3
If disk space is low, free up space by deleting old binary log files. MariaDB automatically rotates binary logs based on `expire_logs_days` or `binlog_expire_logs_seconds`. You can manually purge older logs.
PURGE BINARY LOGS TO 'mysql-bin.000123';4
Alternatively, you can configure automatic purging in your MariaDB configuration file.
[mysqld]
log_bin=mysql-bin
expire_logs_days=75
Ensure that the MariaDB process has the necessary write permissions to the directory where binary logs are stored.
3. Verify Binary Log Format and Data Integrity medium
Corrupted binary logs or incompatible row formats can lead to write errors.
1
Check the configured binary log format. Row-based replication (`binlog_format=ROW`) is the default and generally recommended, but issues can arise. If you are not using ROW format, consider switching to it or investigating potential issues with statement-based or mixed formats.
SHOW VARIABLES LIKE 'binlog_format';2
Inspect the binary logs for any obvious corruption. You can use the `mysqlbinlog` utility to view the contents. Look for errors or unusual entries.
mysqlbinlog /path/to/your/binlog.0000013
If you suspect a specific table is causing issues, you can temporarily disable binary logging for that table (if applicable and safe for your replication strategy) or investigate the data within that table for unusual characters or data types that might not be compatible with the binary log format.
4
Consider enabling `binlog_row_image=FULL` if it's not already set. This provides more detailed information in the binary log, which might help pinpoint the exact row causing the issue. This is a more verbose setting and can increase disk usage.
[mysqld]
binlog_row_image=FULL5
If corruption is suspected and the binary logs are critical for replication, you might need to consider rebuilding your replica(s) from a fresh backup if the issue cannot be resolved by other means.