JMS and Trusted Solaris

I have also posted this on the Trusted Solaris Forum, but I figured someone here might have an idea too.
Trusted Solaris 8 7/03 with application servers running at multiple classification levels. I can have single level producers and consumers communicate at each level, but I need a single consumer to be able to subscribe to topics at both levels.
Thanks,
Alan

Within Trusted Solaris, a port is a triple(ip:port:classification), not a tuple (ip:port). There are mechanisms within the C API to trusted solaris to bind to a MLS port. This is doable because the process is actually able to process multiple levels of data, however the JVM is running at a single level and is unaware that it is running on a MLS operating system. I am looking for either a clean way to tell the JVM to connect to a polyinstantiated port (and be able to read data whose label is dominated) or to communicate to a JVM running at a different classification.

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hi sushmac,
I could start the portal server. basically it was a CACAO problem. I first checked whether my cacao was up or not. Actually the cacao was not up as I didn't had any JDMK home in my system . So, in the next step I downloaded SUNJDMK and then setted the jdmk home parameter for cacao as well as the Javahome parameter.. After this I rebuild the dependencies
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HI andouille07,
What application are you trying to install.
Have you tried fallowing this article?
Enable DVD or CD Sharing
http://support.apple.com/kb/ht1131
Enable DVD or CD Sharing should be performed on your desktop.
while "Use a shared DVD or CD:" should be on the air.
If you do not see the remote disk on the air. make sure both your desktop and macbook air are connected to the same network over wifi.
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Hi,
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Is it a complex task to translate between JMS and MQ?

Hello!
I wonder if it is a complex task to translate a JMS message (javax.jms.Message) to a MQ message (com.xxx.MQMessage)?
xxx=I do not remember the package name for MQMessage
Right now I participate in a project where we need to do this translation.
(I must admit that I thougt there was no need for a translation. I thought that JMS was transparent to MQ and vice versa. But I guess I was wrong)
I would love to hear some experiance and perhaps if there is some "best practice", please let me know!
Best regards
Fredrik

antsbull wrote:
I'm happy for you that you use WebLogic - however WebSphere MQ is the leading messaging technology in the industry. If it is configured correctly it guarantees 100% message retention. You may beg to differ, but you have nothing to back it up with so far - maybe IBM should be sued for false advertising if it is impossible (as you say)?Not really. IBM isn't a very important software company, IMO. They're huge in global services, but they passed leadership in hardware and software off to others decades ago. Or maybe you're one of those people who still lives in the 80s and thinks of IBM as a "leader".
There's a lot of IBM legacy out there. Banks are still running DB2, but nobody thinks it's a leader in the relational database space. There's a lot of Cobol code with CICS running on mainframes, but surely you're not going to cite that as cutting edge, are you?
Just curious - do you work for IBM?
All I know is that MQ is the industry standard, as you can easily discover on google or wikipedia or whatever you want. Wikipedia? Is that your best source? LOL!
Let's look at Wikipedia, shall we? Your own source tells me that WebSphere is ~40% of the market:
http://en.wikipedia.org/wiki/MQSeries
I'm even suspicious of these numbers, because I think they leave out the open source parts of the market. How do you quantify that? # downloads? # of systems in production? I'll bet that survey doesn't exist. And it looks different depending on whether we're talking about large or small companies.
Why don't you find some links to support your claim? You've done nothing but say "industry leading" and "guarantees 100%". Your "because I said so" isn't convincing, either.
Come back in a month - I have time.
Maybe if you are such a messaging expert you would have some reasons why the majority of the industry use MQ and not WebLogic even though WebLogic is supposedly better? Because the entire world isn't IBM anymore.
I worked on a Ministry of Justice project that used WebLogic application server and its JMS queues for a critical messaging component - and at least once every two weeks the queues would go down and there would be a mad rush to get them back up - this was probably a poorly configured installation of WebLogic, and is only one example, but it left me with a pretty poor opinion of the product.That's fair. I don't know anything about the version or the admins or the servers or even you. But if that's what your experience has been, I can't question it. Maybe I can question the competence of a Ministry of Justice (which country?) that doesn't seem to train their WebLogic and server admins properly. Maybe it's an organizational problem.
I can say that we have farms of WebLogic running on Solaris servers that are very reliable. I developed one app that faces out to the Internet that uses JMS, and that app hasn't had to come down in almost three years. Reliable enough?
WebSphere and WebLogic have been neck and neck in the Java EE app server space for a long time, each controlling 35-40% of the market. I think JBOSS and Glassfish are making some inroads there. Spring is making it possible to write enterprise apps that can be deployed on servlet/JSP engines.
And all of this discussion leaves out Microsoft, .NET, and MSMQ.
I would believe that MQ series has the lion's share of the middleware/messaging market, but I'd bet that it has less to do with the clear superiority of the product and more to do with the large legacy base that IBM has out there. It's a very old mainframe/COBOL/CICS kind of technology, and the organizations that brought it in tend to be large and conservative.
You didn't ask any questions about the OP's organization. I think that ought to factor into the discussion.
Oh, and by the way more than 80% of the companies on the Fortune 100 use WebSphere MQ - maybe you should inform them how rubbish it is?And 76.273% of all statistics are made up on the spot.
I'm not interested in convincing anybody of anything. It's my opinion that if I had a Java EE app server with JMS on it that I wouldn't bring in IBM's MQ Series just for the sake of having it. If there was a legacy system that I needed to integrate with that demanded I use MQ Series there'd be no question.
But why does it seem sensible to bring in yet another moving part, another expense, another separate piece to be configured and maintained and upgraded? Applications are hard enough to develop. I wouldn't use MQ Series for its own sake, and I'd challenge anybody who brought it in because "they said so".
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Unable to read from JMS queue on Solaris

Hi all,
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public void sendMessage(TransferMessage aMessage) throws JMSException, IOException {
BytesMessage aMsg = createBytesMessage();
aMsg.setStringProperty(jmsReceiverSessionProperty, aMessage.getReceiverSessionID());
aMsg.setStringProperty(jmsSenderSessionProperty, getSessionID());
sendMessage(aMsg);
Everything works great in Windows XP/7/2008 server 64 virtual machine or not but it fails in Solaris.
The messages are written to the queue as I can see them in the queue table but they never get read from the queue...Oh I missed a bit of information, I use onMessage to handle new message on queues.
The Solaris server is at client environment and I have no remote access to it.
I can run my my simple connectivity tests on a Solaris instance if anyone care to provide me with credentials and 2 queues or even better I can send the jars to run on local environment.
Any help would be much appreciated. Thanks,
Eddie

Moderator Action:
This post has been moved from the Java Message Service (JMS),
to the suggested Database Advanced Queuing forum, for closer topic alignment.

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I'm new to JMS and have been following Suns JMS tutorial here....
[http://java.sun.com/javaee/5/docs/tutorial/doc/bncfa.html#bncfc|http://java.sun.com/javaee/5/docs/tutorial/doc/bncfa.html#bncfc]
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Hi,
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Problem solved.
/Jon

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But your answer show me the right way, big thanks.
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Hey all,
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So I am curious what anyone thinks.. especially anyone that is knowledgeable with JMS and may understand REST as well. What benefits do we lose out on via JMS. Mind you, we were using a single queue and not broadcasting messages.. we wanted to make sure that one and only one end server got the message and handled it.
Thanks..look forward to anyone's thoughts on this.

851827 wrote:
Thank you for the reply. One of the main reasons to switch to REST was JMS is strongly tied to Java. While I believe it can work with other message brokers that other platforms/languages can also use, we didn't want to spend more time researching all those paths. REST is very simple, works very well and is easy to implement in almost any language and platform. Our architecture is basically a front end rest API consumed by clients, and the back end servers are more like worker threads. We apply a set of rules, validations, and such on the front end, then send the work to be done to the back end. We could do it all in one server tier, but we also want to allow other 3rd parties to implement the "worker" server pieces in their own domains with their own language/platform of choice. Now, with this model, they simply provide a URL to send some REST calls to, and send some REST calls back to our servers.well, this sounds like this would be one of those requirements which might make jms not a good fit. as ejp mentioned, message brokers usually have bindings in multiple languages, so jms does not necessarily restrict you from using other languages/platforms as the worker nodes. using a REST based api certainly makes that more simple, though.
As for load balancing, I am not entirely sure how glassfish or JBoss does it. Last time I did anything with scaling, it involved load balancers in front of servers that were session/cookie aware for stateful needs, and could round robin or based on some load factor on each server send requests to appropriate servers in a cluster. If you're saying that JBoss and/or GlassFish no longer need that.. then how is it done? I read up on HornetQ where a request sent to one ip/hornetq server could "discover" other servers in a cluster and balance the load by sending requests to other hornetq servers. I assume this is how the JEE containers are now doing it? The problem with that to me is.. you have one server that is loaded with all incoming traffic and then has to resend it on to other servers in the cluster. With enough load, it seems that the glassfish or jboss server become a load balancer and not doing what they were designed to do.. be a JEE container. I don't recall now if load balancing is in the spec or not..I would think it would not be required to be part of a container though, including session replication and such? Is that part of the spec now?you are confusing many different types of scaling. different layers of the jee stack scale in different ways. you usually scale/load balance at the web layer by putting a load balancer in front of your servers. at the ejb layer, however, you don't necessarily need that. in jboss, the client-side stub for invoking remote ejbs in a cluster will actually include the addresses for all the boxes and do some sort of work distribution itself. so, no given ejb server would be receiving all the incoming load. for jms, again, there are various points of work to consider. you have the message broker itself which is scaled/load balanced in whatever fashion it supports (don't know many details on actual message broker impls). but, for the mdbs themselves, each jee server is pretty independent. each jee server in the cluster will start a pool of mdbs and setup a connection to the relevant queue. then, the incoming messages will be distributed to the various servers and mdbs accordingly. again, no single box will be more loaded than any other.
load balancing/clustering is not part of the jee "spec", but it is one of the many features that a decent jee server will handle for you. the point of jee was to specify patterns for doing work which, if followed, allow the app server to do all the "hard" parts. some of those features are required (transactions, authentication, etc), and some of those features are not (clustering, load-balancing, other robustness features).
I still would think dedicated load balancers, whether physical hardware or virtual software running in a cloud/VM setup would be a better solution for handling load to different tiers?like i said, that depends on the tier. makes sense in some situations, not others. (for one thing, load-balancers tend to be http based, so they don't work so well for non-http protocols.)

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