Top "Race-condition" questions

A race condition is when multiple threads/processes/clients all use a resource, without proper use of locks.

What is a race condition?

When writing multithreaded applications, one of the most common problems experienced is race conditions. My questions to the community are: …

multithreading concurrency terminology race-condition
How to get last inserted row ID from WordPress database?

My WordPress plugin has a table with a AUTO_INCREMENT primary key field called ID. When a new row is …

wordpress auto-increment race-condition
MySQL INSERT IF (custom if statements)

First, here's the concise summary of the question: Is it possible to run an INSERT statement conditionally? Something akin to …

mysql concurrency insert if-statement race-condition
Difference between racearound condition and deadlock

What is the difference between a dead lock and a race around condition in programming terms?

multithreading deadlock race-condition
Avoiding a javascript race condition

Here's the scenario: My users are presented a grid, basically, a stripped down version of a spreadsheet. There are textboxes …

javascript javascript-events race-condition
Atomic increment of a counter in django

I'm trying to atomically increment a simple counter in Django. My code looks like this: from models import Counter from …

python django transactions race-condition
Multi-Threading on different instances of same object in Java

I've learned that every class byte code is been loaded to the memory once for each class loader, thus when …

java multithreading synchronization race-condition
How to correctly use sync.Cond?

I'm having trouble figuring out how to correctly use sync.Cond. From what I can tell, a race condition exists …

go synchronization race-condition
How to make BackgroundWorker ProgressChanged events execute in sequence?

Consider the following code: private static BackgroundWorker bg = new BackgroundWorker(); static void Main(string[] args) { bg.DoWork += bg_DoWork; bg.…

c# .net backgroundworker race-condition
Atomic UPDATE .. SELECT in Postgres

I'm building a queuing mechanism of sorts. There are rows of data that need processing, and a status flag. I'm …

multithreading postgresql concurrency race-condition transaction-isolation