August 2008 - jboss-dev-forums - Jboss List Archives

[Design of POJO Server] - Re: Looking at deployment structure - JBAS-5823

by scott.stark＠jboss.org

Its the StreamingDeploymentTarget that is choosing to copy the content to the server. The SerializableDeploymentID representing the deployment has a contentURL that could be used to represent the old style of external deployment that could be added via reference rather than by copy. As long as the url has a usable VirtualFile the PS should not care. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171339#4171339 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171339

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Paging discussion:

by timfox

"clebert.suconic(a)jboss.com" wrote : | | My first try was to have a single ref-counting for everything, and an attribute for isDurable on the message, but I realized that you could have some of the bindings durable, and some nonDurable. | Yes, durable is effectively an attribute of the reference not the method boolean durable = ref.getMessage().isDurable() && ref.getQueue().isDurable(). anonymous wrote : | So.. you would need to differentiate the two ref-countings. | Yes, the message can maintain a durable count and a non durable count, but you can use the same methods for incrementing / decrementing. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171336#4171336 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171336

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Paging discussion:

by clebert.suconic＠jboss.com

anonymous wrote : You should do the subtraction when the message is completely *acknowledged* (i.e. acked by all references) not when *delivered*. When it's delivered it's still in memory (the deliveries list in the session). | anonymous wrote : You mean "when the message is acked" :) Yes.. when the message is acked. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171333#4171333 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171333

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Paging discussion:

by clebert.suconic＠jboss.com

anonymous wrote : This is done on a separate thread? Yes... anonymous wrote : | ServerMessage already does reference counting - but only for durable messages. Instead of adding new methods you could just extend what is already there. My first try was to have a single ref-counting for everything, and an attribute for isDurable on the message, but I realized that you could have some of the bindings durable, and some nonDurable. So.. you would need to differentiate the two ref-countings. The Durable-ref-counting is used to delete the message from store, while the other one is used to subtract the size of the Address what will happen regardless of the message being durable or not. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171332#4171332 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171332

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Message redistribution in JBM 2.0 - request for feedback

by timfox

I think partial queues and message redistribution are orthogonal. You can have one without the other. In most cases consumers are deployed heterogenously across the cluster, so no message redistribution is necessary anyway. Some of our competitors who also use a similar partial queue approach don't have message redistribution I believe, or at least it is off by default. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171323#4171323 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171323

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Paging discussion:

by timfox

"clebert.suconic(a)jboss.com" wrote : I have added some size controlling per Address on the PostOffice. | | Whenever a message is routed, I'm adding the getEncodeSize() of the message to the PostOffice, and when the message is develiered I'm subtracting the queue size on the PostOffice. | You should do the subtraction when the message is completely *acknowledged* (i.e. acked by all references) not when *delivered*. When it's delivered it's still in memory (the deliveries list in the session). anonymous wrote : | To perform the "when the message is delivered" control, | You mean "when the message is acked" :) anonymous wrote : | I am adding the reference counting logic. When the counter==0 on the ACK of the message, I'm calling a method on the postOffice informing that the message was delivered and that method is subtracting the encode size of the address. If the size < watermark I start a depage thread. | This is done on a separate thread? ServerMessage already does reference counting - but only for durable messages. Instead of adding new methods you could just extend what is already there. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171320#4171320 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171320

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Build failed message

by timfox

"clebert.suconic(a)jboss.com" wrote : I assumed that a failure on the unit testsuite is a mandatory clause for commit so a failure would abort anything and would be considered a build failure, While a failure on the other testsuites would be considered just a unit-test failure. | | Notice that the other testsuites (stress, integration... etc) are not being executed on all-tests if there is a testsuite failure. | | But we could change that. I'd recommend applying the change consistently across all test suites View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171318#4171318 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171318

17 years, 7 months

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[Design the new POJO MicroContainer] - Re: Dependencies from scoped to global

by kabir.khan＠jboss.com

Registering it in the child controller somehow so it can be used for a lookup if it cannot be found in current or parent controller? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171315#4171315 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171315

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Message redistribution in JBM 2.0 - request for feedback

by jeffdelong

Thanks for the explanation of the round-robin nature of the clustered connection factory as well as message redistribution and partial queues. In general round robin is not as efficient as a "single" queue with multiple servers (as Tim pointed out in the initial email), which is what your partial queues with message redistribution attempts to simulate. So if you removed message redistribution (and partial queues), you would need another way to emulate a single logical queue for all nodes to consume from. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171308#4171308 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171308

17 years, 7 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Paging discussion:

by clebert.suconic＠jboss.com

I have added some size controlling per Address on the PostOffice. Whenever a message is routed, I'm adding the getEncodeSize() of the message to the PostOffice, and when the message is develiered I'm subtracting the queue size on the PostOffice. When the size hits the minimal size I set the address in page mode, and after that moment all the messages are being sent to the page instead of routing. To perform the "when the message is delivered" control, I am adding the reference counting logic. When the counter==0 on the ACK of the message, I'm calling a method on the postOffice informing that the message was delivered and that method is subtracting the encode size of the address. If the size < watermark I start a depage thread. The address will be in page mode until all the page files are consumed, and at that point the Address comes back to its regular state automatically. (There is a startPaging method on PagingManager, and there is no stopPaging method. The "stopPaging" event happens when everything is dequeued). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171304#4171304 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171304

17 years, 7 months

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jboss-dev-forums August 2008