Windsurf
database
Cascade Changed Transaction Isolation Level
Data consistency issues appear after Cascade modified transaction isolation level. Race conditions occur where two concurrent operations see inconsistent data. Dirty reads allow transactions to see uncommitted changes from other transactions.
Cascade likely changed isolation level to improve performance without understanding the consequences.
Error Messages You Might See
Lost update: concurrent modification detected
Dirty read: saw uncommitted data
Fantom read: rows added during transaction
Pessimistic lock timeout
Common Causes
- Cascade changed isolation level from SERIALIZABLE to READ_UNCOMMITTED
- Removed @Transactional or changed propagation policy
- Cascade removed optimistic locking (@Version) from entities
How to Fix It
Verify transaction isolation level is appropriate (typically READ_COMMITTED or REPEATABLE_READ). Use @Transactional on business operations. Implement optimistic locking with @Version for concurrent updates. Use pessimistic locking if needed for critical sections. Review git diff for transaction configuration changes.
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Get HelpFrequently Asked Questions
What isolation levels prevent what?
READ_UNCOMMITTED: none. READ_COMMITTED: dirty reads. REPEATABLE_READ: phantoms. SERIALIZABLE: all.
How do I handle concurrent updates?
Use @Version for optimistic locking. Retry on StaleObjectStateException. Or use SELECT FOR UPDATE for pessimistic.