SQLITE_IOERR_RDLOCKERRORTier 2 — Caution⚠️ MEDIUM confidenceI/O error checking reserved read lock
Category: I/O ErrorVersions: 3.0+
🔴 Production Risk Error
Medium — transaction cannot start.
What this means
SQLITE_IOERR_RDLOCK (2314) is returned when the OS reports an error while SQLite checks whether a reserved read lock is held on the database file.
Why it happens
- 1OS error during fcntl() lock check.
- 2Filesystem does not support advisory lock queries.
How to reproduce
Lock state checks during transaction begin.
trigger — this will ERROR
# Surfaces as disk I/O error during BEGINsqlite3.DatabaseError: disk I/O error
Fix 1
Why this works
Use local filesystems that support POSIX advisory locks.
Fix 2
Why this works
Retry the operation.
Sources
📚 Official docs: https://www.sqlite.org/rescode.html#ioerr_rdlock
🔧 Source ref: sqlite3.h — SQLITE_IOERR_RDLOCK = 2314
Confidence assessment
⚠️ MEDIUM confidence
Stable.
See also
⚙️ This error reference was generated with AI assistance and reviewed for accuracy. Examples are provided to illustrate common scenarios and may not cover every case. Always test fixes in a development environment before applying to production. Spotted an error? Suggest a correction →