Skip to content

Latest commit

 

History

History
11 lines (11 loc) · 1.08 KB

2021-08-27-improved-data-consistency.md

File metadata and controls

11 lines (11 loc) · 1.08 KB
Raw
title issue author author_email author_github
Improved data consistency
NEXT-15805
Ulrich Thomas Gabor
ulrich.thomas.gabor@odd-solutions.de
UlrichThomasGabor

Core

  • All calls to beginTransaction have been replaced with the new RetryableTransaction class, as it provides a cleaner interface anyway and the previous code did not execute rollback on exceptions.
  • MultiInsertQueryQueue now uses RetryableTransaction as well as there is no use case where it is desirable that half of the inserts is in the DB and then the execution of the script stops and the other half is left in the wide nothingness.
  • Introduced transactions at multiple code positions to improve data consistency. Also removed all attempts to be smarter than the DBMS in case of a deadlock and try non-batchy execution of queries; executing single statements not within a transaction can lead to data inconsistency; executing single statements inside of a transaction is in no case beneficial to a batch statement. Catching exceptions also breaks the transaction control flow, i.e. they are not reverted correctly.