Files
zoneminder/scripts/ZoneMinder/lib
Isaac ConnorandClaude Opus 4.7 73126938c4 feat: auto-retry zmDbDo on InnoDB deadlock errno 1213
Deadlock detection (errno 1213) is part of normal InnoDB operation
under contention; the engine rolls back the loser and expects the
caller to re-run the statement on a fresh transaction. Most callers
into zmDbDo go through autocommit, where there's no caller-managed
transaction state for a retry to disturb.

When AutoCommit is on, retry the statement up to 5 times with
exponential backoff (~100ms -> ~1.6s, jittered). When AutoCommit is
off, the caller owns the transaction and a unilateral retry would
silently succeed against a TX that no longer reflects the work the
caller staged before this statement; preserve the existing behavior
of logging and returning undef so the caller can rebuild the TX
itself.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 15:13:37 -04:00
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