4087
MySQLERRORCommonHIGH confidence
InnoDB cannot read corrupted page
Production Risk
Critical — Corrupted pages cause data loss and may make the database unrecoverable without a backup.
Why it happens
- 1Physical disk failure or bad sector on the storage device.
- 2File system corruption resulting in garbled page data.
- 3Partial write caused by a crash left the page in an inconsistent state.
Fix 1
Run innochecksum to identify corrupted pages
Why this works
innochecksum -v /var/lib/mysql/ibdata1 reports checksum mismatches page by page.
Fix 2
Restore the affected tablespace from backup
Why this works
The only safe recovery from a corrupted page is restoring from a verified backup.
Fix 3
Use innodb_force_recovery as a last resort
Why this works
Set innodb_force_recovery=1 to 6 incrementally to dump data from a partially recoverable database.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 4087 ER_INNODB_CANNOT_READ_PAGE
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