![]() PHP 8.1 & MySQL 5.7 Patch Failed to Apply.User interface changes API changes Data model changes Release notes snippet Decide if we want to add a setting to allow site owners to override the decision to use IMMEDIATE, and to stick with DEFERRED: basically if site owners would prefer the occasional deadlock over the performance cost.Decide if the performance cost is acceptable enough to commit the patch.Still, because an exception at this step becomes possible, this patch also moves the ->startTransaction() calls into the try block when the catch block does more than just roll back the transaction. However, this is less likely than the current deadlock problem, since this is not a deadlock but just a normal condition of waiting for another process to finish an operation that it isn't blocked on finishing. With the change to IMMEDIATE mode, it is now possible for ->startTransaction() to itself throw an exception due to not being able to acquire a write lock, if another process has a write lock for longer than the timeout.Reducing this might be possible (see #128 and #135 - #138), but what's being currently proposed for this issue is to punt those ideas to followups, and accept the performance hit for now. ![]()
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