Tagged with "concurrency"

Fun MySQL fact of the day: group commit

We now know that each MySQL thread has its own binary log cache to which it writes the binary log events for a single transaction. We also briefly discussed that MySQL will, upon commit of a transaction, write the thread's binary log cache to the actual binary log file ... read more

The Cost Of Consistency: When 9ms Is 1s Too Much

The CAP theorem remains one of the most important tools in my software developer's toolbelt. Used correctly, it can help create services and products that can offer an excellent user experience and protect revenue during partial failures. Used incorrectly, it can lead to a poor user experience and loss ... read more

Pessimistic Optimism: The Case Of Unexpected Deadlocks

Despite the fact I've been developing software in one way or another for almost 20 years, I'm constantly surprised how things work, and, once the frustration wears off, I'm intrigued when things break. Lucky for me, over the last few weeks, I've been surprised, frustrated, and ... read more

No ConcurrentHashSet? No Problem

The JDK provides several concurrent Set classes, each with their own application, but it does not provide a ConcurrentHashSet. Using the Collections utility class, however, such a structure may be created. ... read more

The Concurrency Of ConcurrentHashMap

Java's ConcurrentHashMap is an excellent point of study when learning about Java's Memory Model. It employs numerous techniques to provide lock-free reads while still guaranteeing safe publication of objects. This article represents my attempt to take the magic out of the ConcurrentHashMap implementation. ... read more
1 2