CometD and Opera

The Opera browser is working well with the CometD JavaScript library. However, recently a problem was reported by the BlastChat guys: with Opera, long-polling requests were strangely disconnecting and immediately reconnecting. This problem was only happening if the long poll request was held by the CometD server for the whole Read more…

CometD 2.4.0.beta1 Released

CometD 2.4.0.beta1 has been released. This is a major release that brings in a few new Java API (see this issue) – client-side channels can now be released to save memory, along with an API deprecation (see this issue) – client-side publish() should not specify the message id. On the Read more…

Prelim Cometd WebSocket Benchmarks

I have done some very rough preliminary benchmarks on the latest cometd-2.4.0-SNAPSHOT with the latest Jetty-7.5.0-SNAPSHOT and the results are rather impressive.  The features that these two releases have added are: Optimised Jetty NIO with latest JVMs and JITs considered. Latest websocket draft implemented and optimised. Websocket client implemented. Jackson Read more…

CometD Introduction

The CometD project provides tools to write server-side event-driven web applications. This kind of web application is becoming more popular, thanks to the fact that browsers have become truly powerful (JavaScript performance problems are now a relic of the past) and are widely deployed, so they are a very good Read more…