Why use IBM MQSeries when Weblogic already provides JMS?

i kind of understand that MQSeries works the same as JMS provided by WebLogic, so there is not much a point to use MQSeries, but why do companies still use MQSeries when JMS is already provided by WebLogic?
what are the advantages of using MQSeries over WebLogic provided JMS?

I don't think there's necessarily much reason to adopt MQ, unless perhaps you have very specific messaging extensions or capability requirements. There are performance, manageability, and scalability benefits in using WebLogic JMS, especially when it is integrated with WebLogic applications. There also happen to be benefits in using the Oracle DB's built in messaging (AQ JMS).
There are tens of thousands (if not 100s of thousands) of production WL JMS deployments out in the wild - some of which are "mission critical" and quite large, and some of which have been running for 10+ years. It's not unlikely that you generate multiple WL JMS transactions per day, just going about your daily life (phone, bank, credit card, financials, etc.).
Of course your mileage may vary - and keep in mind that you're posting to WebLogic JMS forum. :-)
Tom Barnes
Oracle WebLogic Messaging Team

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i sync some movies and playlists.
easy enough
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Message was edited by: ninja_pimp

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We are facing a problem with our Java application distribution, since the software house sends us large JARs (around 10Mb) which must be deploy to our branches at around 64Kbauds, taking at least an hour for each one. When we look at the changes, only a few 100Kb where changed (only 10 or 20 Java routines) from one version to the other of the applications.
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How do i use a tc when i already have a wireless router

I have a wireless network set up in my house. I want to add a time capsule for data storage and backup. Do I have to plug the time capsule into the internet modem? I already have all ports full.

Yes, you do unless you want it to be very slow. You could purchase a switch, Netgear is a good brand of switch.

How to use IBM MQ as a JMS Provider?

Chapter 8.2 on session pools in the 1.0.2 spec seems to make no real mention
          of transansactions. If not could you point exactly where? What steps would
          one use to cause a foreign messaging-server to infect an async message
          with a JTA transaction using Chapter 8.2 session pools?
          Chapter 8.3 describes the XA libraries, which are not related to session pools.
          The general community feeling on Chapter 8.2 SessionPools is that in almost all
          cases they are
          inferior to MDBs. To make it worse, they are not a required part of the J2EE
          spec. Their
          only real advantage is that they can pool access to a single topic subscription.
          Nice, but hardly
          worth the trouble. Just brainstorming here, but the elegant solution here
          seems simple: extend
          the JMS spec to allow multiple consumers on a single subscription. This would
          also nicely solve
          one MDB/topic problem, as even with SessionPools, there is no way to have MDBs
          on multiple
          servers share a single subscription...
          I don't think the spec states that SessionPools should run on a client. I'm
          fairly sure
          that SessionPools were intended to be a server-side entity. The numerous
          repetitions stating
          that the MessageListener runs on the app server and that the app server controls
          the threads seems to support
          this. It is an extension past Chapter 8.2 to get them to work off-server.
          (Albeit potentially a nice one, if
          one is absolutely determined to use these things instead of MDBs.)
          Maciej Szefler wrote:
          > I've noticed that BEA maintains that this is a shortcoming in the JMS
          > spec -- particularly that there is no way to integrate XA messages from
          > other JMS implementations into Weblogic without the vendor implementing
          > propriatary Weblogic interfaces, I quote your FAQ:
          >
          > "The only reason this works for WebLogic Server JMS is that we have defined
          > a WebLogic Server extension interface that has a method to associate a
          > message with a transaction. This interface, MDBTransaction, is defined in
          > news://newsgroups.bea.com/[email protected]. It has one method,
          > associateTransaction(), that takes a javax.jms.Message parameter. This
          > message must be associated with the transaction. We are hoping that other
          > JMS vendors interested in integrating with WebLogic Server will implement
          > this interface. "
          >
          > "Another approach called source managed transactions, would be for there to
          > be an API to tell the JMS provider to start a transaction on your behalf
          > before delivering the message to an asynchronous consumer. This API doesn't
          > exist in J2EE either. Even if there were such a provision, few non-WLS JMS
          > providers can begin and drive such a transaction by themselves."
          >
          > I would like to know where it is that you guys came up with this novel (and
          > incorrect) position. The JMS API to do this exists, it is called ASF (JMS
          > spec chapter 8) and if WebLogic implemented it correctly then there would be
          > no problem driving XA MDBs using MQseries. The fact of the matter is that
          > Weblogic 6.1 server is simply not JMS compliant in this respect. The 6.1 JMS
          > implementation does not expose the ASF correctly (it relies on the client
          > using a special ServerSesisonPool implementation), nor does the MDB
          > container use the ASF (which I guess is understandable since it isn't
          > implemented correctly). The question is, is Weblogic 7.0 Server going to use
          > ASF to drive MDBs and is the Weblogic 7.0 JMS implemetation going to
          > correctly expose the ASF to advanced clients that may wish to use it?
          >
          > -Maciej Szefler
          > FiveSight Technologies Inc.
          >
          > "Tom Barnes" <[email protected]> wrote in message
          > news:[email protected]...
          > > Clarification. See in-line.
          > >
          > > Tom Barnes wrote:
          > >
          > > > Hi Steve,
          > > >
          > > > This request comes up numerous times in this newsgroup. Since
          > > > the FAQ isn't quite up to date, here is the cut-and-paste response:
          > > >
          > > > Resources:
          > > > Resource Library/White-Papers/WebLogic Server section on dev2dev site:
          > > >
          > http://dev2dev.bea.com/resourcelibrary/whitepapers.jsp?highlight=whitepapers
          > > > jmsproviders.doc, jmsmdb.doc, jmsjta.doc
          > > >
          > > > Code Library/Code Samples/WebLogic Server section on dev2dev site:
          > > > "WebLogic MQSeries JMS Support"
          > > > wlsmqseries.zip
          > > >
          > > > Code Library/Alpha Code/WebLogic Server section on dev2dev site:
          > > > "Sample JMSBridge For WebLogic 6.0"
          > > > JMSBridge60.zip
          > > >
          > >
          > > The above is 6.0 sample code that has nothing to do the below 6.1 alpha
          > bridge, and
          > > was not developed by anyone on the JMS team. The location for the 6.1
          > information is:
          > >
          > > Resource Library/Guides and Tutorials
          > > "Introducing WebLogic Messaging Bridge"
          > > MessagingBridge61.zip
          > >
          > > (see
          > >
          > http://dev2dev.bea.com/resourcelibrary/guidestutorials/technicalguides.jsp?h
          > ighlight=guidestutorials)
          > >
          > >
          > >
          > > >
          > > > The 6.1 MDB can be driven directly by standard JMS implementations -
          > but
          > > > not transactionally by vendors that do not implement the
          > > > weblogic.jms.extensions.MDBTransaction interface. Such vendors
          > > > (including MQSeries) can be made transactional by using a messaging
          > bridge
          > > > to synchronously forward MQSeries messages into WL queues that in turn
          > > > drive the MDB. The 7.0 MDB will be able to be driven transactionally
          > > > by non-WL vendors.
          > > >
          > > > The messaging bridge works with JMS implementations that implement
          > > > the standard J2EE JMS API. This bridge is available as alpha code
          > > > for 6.1, will be fully supported in 6.1SP3 (due out in June?), and is
          > also
          > > > part of 7.0 (currently released in beta).
          > > >
          > > > Tom
          > > >
          > > > steve chen wrote:
          > > >
          > > > > We like to use IBM MQ as our message provider, use Message Driven
          > Bean (Weblogic
          > > > > 6.1) as the consumer. How do we configure WLS so it uses IBM MQ
          > instead of WLS
          > > > > built in JMS as the provider?
          > > > >
          > > > > Thanks
          > >

JMS versus IBM MQSeries

1. What is the difference between JMS and IBM MQSeries ?
2. If JMS is all about APIs to interact with Message Oriented Middleware (MOM) that IBM MQSeries supports, why not use a simple JAVA program that would import com.ibm. * packages instead of JMS APIs ? What is the benefit we derive from using JMS ?

I think what you are saying is JMS is the preferred
way to communicate with MOM (i.e. MQ) as it is
standard and not vendor dependant. My concern is
this:
If we write a stand alone program to send/retrieve
meessage from MQ then how do we create
ConnectionFactory and connection? Personally I prefer to use Dependency Injection using a library like Spring to configure things like JMS connection factories, JDBC DataSources etc.
http://www.springframework.org/
though the more typical (and some would say official) way of doing it is to use JNDI in your application. So create a JNDI context and pull the JMS ConnectionFactory and destinations out of JNDI.
e.g. like this
http://svn.activemq.org/trunk/activemq/modules/core/src/test/org/activemq/demo/SimpleProducer.java?rev=1&view=auto
Then you need to refer to your JMS provider's documentation on how to configure a JNDI context. Typically its a case of adding a jndi.properties file to the classpath configured to your provider's JNDI provider.
Don't we need MQ
classes to create these objects.Yes, you need the classes from your JMS provider to create connections & sessions. (Its not like EJB remoting where you can create client side proxies from the EJB interfaces).
James
http://logicblaze.com/

Why use finally block

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Hi
We are planning to use IBM MQSeries as a JMS server for message driven beans.
We are using OC4J 2.0 developer preview, but can't figure out how to connect to MQSeries. It looks like we have to use JNDI, but how?
Best regards
Ole

Hi Ole,
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http://kb.atlassian.com/content/orion/docs/resource-providers/resource-providers.html
Good Luck,
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Hi All,
When I use the BAPI_HU_CREATE to create HU, the system give me a HU and it inserts a line in Table VEKP, however when I search in table VEKP with field HU EXIDV, I find two entries with the same HU, one of them has VPOBJ 01 and the other has VPOBJ 12, So when I execute transaction LM46 the system shows “The system could not find transfer order for execution” because the system search in table VEKP it find the first line with VPOBJKEY = delivery and STATUS = 0020, however those delivery is not assigned to transfer order that I want to confirm transfer order.
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Thank you!
Best regards

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Quote:
Re: v$log : How redo log file can have a status ACTIVE and be already archived?
Hemant K Chitale
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TanelPoder
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Aman.... wrote:
John,
Are you sure that the instance recovery (not the media recovery) would be using the archived redo logs? Since the only thing that would be lost is the isntance, there wouldn't be any archived redo log generated from the Current redo log and the previous archived redo logs, would be already checkpointed to the data file, IMHO archived redo logs won't participate in the instance recovery process. Yep, shall watch the video but tomorrow .
Regards
Aman....
That's what I said. Or meant to say. If Oracle used archivelogs for instance recovery, it would not be possible to recover in noarchive log mode. So recovery relies exclusively on the online log.
Sorry I wasted your time, I'll try to be less ambiguous in future

Why use IBM MQSeries when Weblogic already provides JMS?

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