MOM and SOA on Linux?

dogmeant asks: "I have yet to see MOM (message oriented middleware) offerings on Linux much less open source projects that address the same. And while we're at it, what about tools that address SOA/BPM (Service oriented architecture/business process modeling) type architectures on Linux? Is the Open Source community ready to take on challenges like this?" If anyone else out there has this particular itch, maybe this will be another niche in which Open Source software can catch some Enterprise mindshare.

Comments

Buzzword bingo!

[cyberkreiger]

Bingo!

Ah, middleware

[JohnFluxx]

Middleware is an interesting area. The trouble is, is that it doesn't offer enough for someone to bother coding it.

It works well for companies because:
1) They can afford to put time and investment into 'the latest fad', whereas in the OS community the time is better spent elsewhere. (The point isn't phrased very well sorry - read on)

2) It is good for companies to produce middleware because they can offer a high level of intergration between their products - hence locking you into their whole range. E.g. Lotus domino - news server,web server, database all in one. In the OS community you would chose the best database applicable, the best web server applicable, and quickly write some scripts to communicate between them.

3) Middleware solves problems that people don't know they have - so don't notice that itch to solve them. However in business, companies produce such software, then tell other companies they have the problem, and solve it. (I'm not very good at getting point across today - sorry.) For example: IBM do a message passing program that basically consolidates errors between servers. Say a hub breaks down, and suddenly a load of machines report they can't access the machines behind the hub. What you want is for the computers to talk to a central node, and the central node to reduce all the errors down to a "x,y,z machines can't be reached, they are all behind router r, hence I suspect r is down." Then when the machine come back, delete the errors.

Re:Ah, middleware

[jsse]

Middleware solves problems that people don't know they have

Very true. Some are solving the problem in very complicated way, like Staffware, we used it in writing workflow application for JSP. It's supposed to make life easier, but turn out the total effort to collaborate and manintain this damn Staffware server is multiple times more than it takes to write a workflow mechanism on our own from the ground up.

What's worse is that most middleware introduce a vulnerable layer in a supposingly robust system. The above-mentioned system has a AIX+Oracle backend and it's supposed to be very reliable, but most of the time the system cease to function when that Windows server which host Staffware goes down. I swear to God I do not make this up.

When they sell you middleware and say "slip this in and you can save the money doing this layer yourself!". They lied, they just want your cash.

May be that's the major reason why opensource community seldom target on middleware, as most of them are useless.

Re:Ah, middleware

[jsse]

IBM and Oracle are competitors, but they do not apply this to the interoperative issue. To them, interoperability means profit. You can't apply the same mentality you've found in Microsoft in dealing with competition. I receive full support from IBM in getting AIX works with Oracle, and vice versa.

I must admit the choice is based on the business needs, not on the technical side, but technically I don't think DB2 shine on AIX. DB2 is great on MVS, I was a DB2/MVS developer.

Regardlessly, this combo seldom has problem. So far the AIX down once, and Oracle never. That Staffware on Windows 2K, on the other hand, down twice per week, at least.

Re:Ah, middleware

[dogmeant]

1) Actually, the idea that even large companies would want to write their own infrastructure is clearly out of date. The large company I work for has a stated direction to buy rather than build. This applies to packaged applications such as Siebel and SAP as well as middleware.

Building and especially maintaining infrastructure software is way to expensive for a single company to take on. This is where Open Source comes in. Albeit, a consortium of some sort would have to be put together.

isectd

[hdparm]

First link returned by Google on 'mom linux' is http://sourceforge.net/projects/isectd. Says there it's stable/production dev status.

IBM has middleware on Linux

[Vendekkai]

The IBM middleware family, formerly known as MQSeries, now called IBM WebSphere MQ family, has ports for Linux. More info on the IBM site

Vinci is a SOA for Linux. The site describes it as "a local area service-oriented architecture designed for rapid development and management of robust web applications"

I have attended presentations on MQ series, and found it interesting, but never had any opportunity to use it. I found the Vinci paper by googling.

MQ

[signifying nothing]

IBM's MQ Series (aka Websphere MQ) is a very high-quality MOM product which runs very well on Linux. We are beginning to use it at my place of work.

It's neither open source of free of charge, but certainly not expensive.

Jabber, XMLBlaster and friends

[Twylite]

Jabber is normally thought of as yet another IM system, but "Jabber is an open XML protocol for the real-time exchange of messages and presence between any two points on the Internet" (from the Jabber site). Its first application has been IM, but it is by no means limited to IM. Jabber is a protocol specification, and there are several open and closed source implementations of clients and servers.

xmlBlaster is a more traditional MOM offering, under LGPL. It supports numerous protocols and bindings into a number of languages.

As usual, Google offers a lot of advice on the topic of 'mom middleware "open source"', including a list of MOM implementations which tells us that JORAM is also open source, and an article entitle Open Source in Middleware.

Re:Jabber, XMLBlaster and friends

[tcopeland]

Like the parent poster said, Jabber is much more useful than just sending IMs around.

We're using Jabber on Linux to support http://cougaar.org/ administration - to stop/start/configure nodes, check on status, etc, etc. It's pretty sweet, especially when used via Rich Kilmer's Jabber4R Ruby Jabber client. Check out http://www.infoether.com/ruby/jabber4r/ for more info...

Tom
Find unused Java code with http://pmd.sf.net/

AQ

[sql*kitten]

I have yet to see MOM (message oriented middleware) offerings on Linux

If you have Oracle on Linux you can use AQ, and others have mentioned IBM's MQSeries. Also there is a pure Java one called SonicMQ but I've never used it.

MOM is SOL on Linux?

[DeadSea]

My mother wants to use powerpoint and play the latest games on Linux. Can anybody help her?

The joram project

[Matthias Wiesmann]

Check out the Objectweb project, and in particular Joram. Objectweb is a complete J2EE environnement that includes a MOM with a JMS interface. A XML-RPC interface is in the works.

The project is spear-headed by INRIA (a French research institute). The whole system is open-source and they are doing quite advanced stuff (including group communications).

It goes deeper than that.

[FreeLinux]

This is a common situation in open source and I don't see it changing anytime soon. The fact is that apps such as middleware are business apps. They aren't terribly sexy or cool. They are however, important to business and are usually specific to a particular business.

On the other hand, it seems that most open source developers are motivated to scratch their own itch. They are drawn to apps that are cool and apps that meet their needs. This is perfectly understandable but, it does result in a derth of open source business apps that are either mundane or just plain boaring. For this reason, open source offers an emormous assortment of "toy" apps. There are countless cd burners/rippers, MP3/Ogg players/encoders, Linux utilities and so forth. There are also a ridiculous amount of frameworks and libraries, usually all repeating the same theme. If I see another "yet another framework" project I'm going to be sick.

There are only a few business type open source projects and even fewer ones that could be considered mature enough and good enough to run your business on them. If a business wants a particular app they must build it themselves. This of course costs money and in some cases it costs a huge amount of money. And there in lies the problem. Most businesses that have spent large amounts of money on development are not interested or willing to give it away by making their project open source. For these two reasons there are very few business type open source apps like middleware and it will be a long time before there are, if ever.

JBOSSMQ

[trajano]

JBoss comes with a JMS component and a MOM server with it.

Haven't seen spread mentioned

[tony clifton]

Spread seems to offer some interesting MOM functionality. Pub/Sub systems are fun!

Spread is a toolkit that provides a high performance messaging service that is resilient to faults across external or internal networks. Spread functions as a unified message bus for distributed applications, and provides highly tuned application-level multicast and group communication support. Spread services range from reliable message passing to fully ordered messages with delivery guarantees, even in case of computer failures and network partitions.

Spread is designed to encapsulate the challenging aspects of asynchronous networks and enable the construction of scalable distributed applications, allowing application builders to focus on the differentiating components of their application.

MOM/SOA/ESB on Linux

[ESBdude]

no ...we're not talking alphabet soup. Mind you, in today's TLA craze, you just never know. I just read a max'd out thread on MOM offerigns for Linux and offer this.

While I'm a big fan of open-sourced solutions, there are plenty of commercial MOM offerings out there that run on Linux. A really solid one that I've worked with is SonicMQ. It runs on Linux and many other platforms. Being built 100% in Java makes that possible.

As for SOAs, there's another offering from Sonic called SonicXQ that offers a standards-based SOA that includes support for web services, content-based routing, transformation, and itinerary-based process flow, all done using proven standards. They recently added a suite of XML tools from the acquisition of eXcelon that gives them sophisticated XML storage and handling as well as stateful conversational BPM.

The industry has labeled this new form of SOA that combines MOM, Web services, cbr and transformation as an Enterprise Service Bus (ESB). Lots of talk about the ESB being a more flexible cost-effective integration strategy than the traditional integration brokers approach.

And this too runs on Linux.

You might want to do a little research...

[Phaid]

As has been said, IBM MQSeries / Websphere MQ is available for Linux. So is the granddaddy of all Message Oriented Middleware, BEA MessageQ, formerly known as DECMessageQ. So is BEA Tuxedo. So is Tibco Enterprise. I'm sure there are others but considering that the above four cover something like 99% of the MOM market, whether on Linux or not, it's pretty silly to say there are no MOM products available for Linux.