EC
SQLITE_IOERR_SEEK
SQLiteFATALCriticalI/O Errorofficial confidence

I/O error during file seek

Production Risk

Critical — hardware failure; restore from backup.

What this means

SQLITE_IOERR_SEEK (5642) is returned when the OS reports an error during an lseek() call on the database file. Usually indicates a hardware or filesystem failure.

Why it happens
  1. 1Hardware failure on the storage device.
  2. 2File offset exceeds device capacity.
  3. 3Filesystem corruption.
How to reproduce

Random-access reads and writes that use lseek() to position the file cursor.

trigger — this will error
trigger — this will error
# Triggered by hardware failure; surfaces as:
# sqlite3.DatabaseError: disk I/O error

expected output

sqlite3.DatabaseError: disk I/O error

Fix 1

Fix 2

Fix 3

Sources
Official documentation ↗

sqlite3.h — SQLITE_IOERR_SEEK = 5642

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