Keep pace with change

Instant Messaging is a rapidly developing and expanding industry. It is therefore not surprising that change happens quickly.

Through our blog, ProcessOne aims to help people to stay informed about the latest developments for both ejabberd and Instant Messaging in general. Scroll down the page to read our comments on the activities of major players in the industry and our opinions about new technology developments.

ejabberd 1.1.4 released

Jérôme Sautret - 17 Sep 2007

A new ejabberd version, 1.1.4, has been published on ProcessOne's web site. This is mainly a bugfix release. The binary installers have also been improved: all installers can now support SMP, and a new x86-64 (aka amd64) installer is available. Binary installers and source code are available for download here.

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Angie: plugin-based publish and subscribe is a huge leap toward rich presence

Process-one - 12 Aug 2007

The XMPP Standards Foundation has defined a standard protocol to add publish and subscribe mechanisms to XMPP (XEP-0060). It is currently not largely used because of one missing implementation element: it should be implemented as the base of an application server to spread adoption among service developers. The next version of ejabberd will introduce a plugin-based publish and subscribe implementation

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Planet Erlang updated

Mickaël Rémond - 03 Aug 2007

Planet Erlang has been updated to make possible to embrace all articles and posts that are published every day on Erlang on Internet.

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Live code upgrade: A must-have feature for high-availability deployments

Mickaël Rémond - 16 Jul 2007

Erlang has the ability to upgrade the code of a live system. This is a feature which is very appreciated by our customers. They can apply the patch we provide for their Instant Messaging system without having to stop / restart the service. This article from Bill Clementson does a good job in explaining what is the magic behind Erlang live code upgrade.

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Message Archiving Benchmark: How Many Letters Are in Messages?

Alexey Shchepin - 08 Jul 2007

Let's look at distribution of the number of letters in message's body. Note, that it's not a byte length, it's an amount of Unicode symbols. Cyrillic characters are represented using 2 bytes in UTF-8, so some messages can be actually 2 times longer in bytes. Also AFAIK English sentences are generally shorter than Russian, so average message length should be less for servers with English-speaking users.

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Message Archiving Benchmark: General Statistics

Alexey Shchepin - 08 Jul 2007

A few days ago I updated mod_archive (XEP-0136) ejabberd module to support PostgreSQL with text search feature (tsearch2). Simple benchmarks looked good, so to benchmark it on real traffic I ran it with enabled automated archiving on one of two jabber.ru nodes for 24 hours on business day. It worked smoothly and I didn't notice any performance downgrades or higher CPU load.

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