MySQL error 1030 (ER_GET_ERRNO) signals that the storage engine returned an operating-system errno, such as disk full or permission denied.
MySQL Error 1030: ER_GET_ERRNO appears when the storage engine relays an operating-system errno (for example, 28 means no disk space). Identify the errno with SHOW WARNINGS, then resolve the root cause—free disk, fix permissions, or increase file limits—to clear the error.
Got error %d from storage engine
Error 1030 fires when a MySQL storage engine cannot complete an I/O request and returns a low-level operating-system errno. The server surfaces the message as “Got error %d from storage engine,” where %d maps to an OS error like 28 (No space left on device) or 13 (Permission denied).
The problem usually emerges during disk-intensive statements such as INSERT, UPDATE, ALTER TABLE, or during temporary-table creation for large SELECT queries.
Because the errno originates outside MySQL, fixing it requires investigating the host system.
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The most common trigger is errno 28, indicating that the data or tmp directory has run out of space. Permissions errors (errno 13) arise when MySQL lacks read/write rights on data files or binary logs. Errno 24 points to the open-files limit, while errno 122 reveals a user or group disk-quota breach.
Other causes include corrupted InnoDB files, misconfigured symbolic links, and exhausted InnoDB file-per-table autoextend volumes. Each errno value narrows the investigation path.
First, capture the exact errno:
SHOW WARNINGS; -- returns the numeric errno
SHOW ENGINE INNODB STATUS\G; -- may show the same value
Next, map the errno to its meaning with perror N on Linux or consult the OS docs. Apply the appropriate remedy: free disk space for errno 28, adjust directory permissions for errno 13, or raise open_files_limit for errno 24.
Disk full (errno 28) – Purge logs, move large backups, or expand the partition. Restart MySQL if temp-file creation previously failed.
Permission denied (errno 13) – Ensure the MySQL user owns datadir, tmpdir, and log directories. Use chown -R mysql:mysql /path.
Too many open files (errno 24) – Increase ulimit -n and set open_files_limit in my.cnf, then restart.
Monitor disk usage with df -h and alert at 80% capacity. Rotate binary and relay logs automatically. Configure innodb_file_per_table to prevent oversized shared tablespaces. Set reasonable quotas and increase file-descriptor limits to match workload.
In Galaxy, you can schedule health-check queries (e.g., disk-usage percentage) and share them with your team, ensuring early visibility before MySQL hits critical thresholds.
ER_CANT_OPEN_FILE (1017) signals MySQL cannot open a table file. The fix often mirrors permission solutions for errno 13.
ER_RECORD_FILE_FULL (1114) occurs when a file or tablespace reaches its size limit. Extending InnoDB data files or enabling file-per-table resolves it.
ER_TOO_MANY_CONNECTIONS (1041) indicates resource exhaustion at the connection level; increase max_connections or use pooling.
Errno 28 fires when the partition holding datadir or tmpdir has no free blocks or inodes.
Errno 13 appears if the MySQL user lacks read/write rights to data files, binary logs, or the temporary directory.
Errno 24 surfaces when the process or system open-files limit is lower than the workload demands.
Errno 122 indicates user or group disk-quota exhaustion even when global free space exists.
A damaged file system or a mount remounted read-only can return errno 30 (Read-only file system) or similar.
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Immediately after the failure, run SHOW WARNINGS; or check the error log. The first number in the warning line is the operating-system errno.
No. Disk space (errno 28) is just the most common. The errno could also point to permission issues, open-file limits, or quotas.
Yes, if you resolve the underlying OS issue quickly. For example, freeing disk often lets the query succeed on retry without a restart.
Galaxy lets you save health-check queries that monitor disk usage and table sizes. Team alerts surface impending capacity issues before Error 1030 appears.
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