July 2010 - jboss-dev-forums - Jboss List Archives

[jBPM Development] - JBPM-2795 erroneously filed as 'resolved'

by Per Christian Henden

Per Christian Henden [http://community.jboss.org/people/perchrh] created the discussion "JBPM-2795 erroneously filed as 'resolved'" To view the discussion, visit: http://community.jboss.org/message/554817#554817 -------------------------------------------------------------- https://jira.jboss.org/browse/JBPM-2795 https://jira.jboss.org/browse/JBPM-2795 is marked as resolved, but is not. It looks like the issue was closed by a mistake, as the fix was never applied to trunk. The issue is present in jBPM 4.4 (and likely all previous 4.x versions). A patch and unit-test is attached to the Jira-issue. I've verified that the patch fixes the issue in jBPM 4.4. No tests fail with the patch applied. I suggest the following. o The mentioned issue is reopened o The patch is applied to jBPM trunk o The unit-test is included in jBPM-trunk -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554817#554817] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss Tools Development] - Portlet Development is Effectively Unusable in JBoss Tools

by Max Andersen

Max Andersen [http://community.jboss.org/people/max.andersen%40jboss.com] replied to the discussion "Portlet Development is Effectively Unusable in JBoss Tools" To view the discussion, visit: http://community.jboss.org/message/554816#554816 -------------------------------------------------------------- Hi Robert, You really are having a bad week; lets see if I can make your week better ;) 1) Wizard not recognizing your portlet runtime. As said above, if you say you got a portlet runtime installed that we don't recognize then *please* open a jira with the details of what version and name of the Portlet container you used and what version of jboss tools so we can investigate. Our jira is at http://jira.jboss.org/browse/JBIDE http://jira.jboss.org/browse/JBIDE Without that information my team can't really help since our test shows multiple version of JBoss Portal, GateIn and EPP as being recognized - of course our tests can't cover all combinations that you as an user might do but we can fix this but to know where to start looking please open jira with portal name and version. 2) User libraries - I haven't seen the portal *force* me to select a user library; it should only be warning you that if you continue there are probably going to be compile errors since there is no located runtime (see #1). Note, if Portal is *forcing* you to select a runtime and not allowing you to continue then that is a bug and please report that in jira. 3) Eclipse Facet are supposed to provide this kind of dependency automatically - that is partly true, but how do you expect the portlet facet to provide the runtime dependencies when it is not finding it ? (see #1). If we were to shove down on you a specific jboss portlet version distributed together with jboss tools then we would really be giving you vendor lockin and really bad dependency management (see http://relation.to/Bloggers/NavelgazingClasspathContainersAnEclipseAntiPa... this for background). 4) I opened https://jira.jboss.org/browse/JBIDE-6719 https://jira.jboss.org/browse/JBIDE-6719 and Snjezana came back answering: There are the following JBoss Portlet Runtimes: - JBoss Portal 2.x bundled with JBOss AS 4.x - GateIn Portal 3.x bundled with JBoss AS 5.1 - JBoss Portlet Container 2.0 bundled with JBoss AS 4.2 and Tomcat - GateIn Portlet Container 2.1 bundled with JBoss AS 4.2, JBoss AS 5.1 and Tomcat - EPP The Portlet engine recognizes all these containers except GateIn Portlet Container bundled with JBoss AS 5.1. This server has a different name for simple-portal directory (simple-portal.sar instead of simple-portal). Can you confirm you are using GateIn Portal 3.x bundled with AS 5.1 ? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554816#554816] Start a new discussion in JBoss Tools Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss ESB Development] - ESB CEP support for multiple event streams

by Kevin Conner

Kevin Conner [http://community.jboss.org/people/Kevin.Conner%40jboss.com] replied to the discussion "ESB CEP support for multiple event streams" To view the discussion, visit: http://community.jboss.org/message/554771#554771 -------------------------------------------------------------- Please keep in mind that all new development has missed the cut-off for EBS 4.9 and will have to wait until later. Also, the majority of bugs have now missed cut-off with only those deemed 'critical' being allowed in to the release schedule for 4.9. Kev -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554771#554771] Start a new discussion in JBoss ESB Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss Tools Development] - JBoss Tools sources can not be checked out on Windows

by Stevo Slavic

Stevo Slavic [http://community.jboss.org/people/sslavic] replied to the discussion "JBoss Tools sources can not be checked out on Windows" To view the discussion, visit: http://community.jboss.org/message/554763#554763 -------------------------------------------------------------- Just found, there is issue for this in JBoss Tools tracker: https://jira.jboss.org/browse/JBIDE-6720 https://jira.jboss.org/browse/JBIDE-6720 -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554763#554763] Start a new discussion in JBoss Tools Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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[EJB 3.0 Development] - defining isolation level

by paresh bhavsar

paresh bhavsar [http://community.jboss.org/people/bhavsar.er] created the discussion "defining isolation level" To view the discussion, visit: http://community.jboss.org/message/554755#554755 -------------------------------------------------------------- Hi, Please note that we are using default isolation level(do not know which) with jboss 5.1 and oracle 10g. We would like to define our own isolation level. Kindly let me know where can we define the same ? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554755#554755] Start a new discussion in EJB 3.0 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss ESB Development] - ESB CEP support for multiple event streams

by David Ward

David Ward [http://community.jboss.org/people/dward] replied to the discussion "ESB CEP support for multiple event streams" To view the discussion, visit: http://community.jboss.org/message/554701#554701 -------------------------------------------------------------- Just to keep readers of this thread updated, Jeff and I received this information from Edson: "[Drools Fusion] is designed to support one thread per entry-point. So, if a session has the main entry point, plus entry points A, B and C, there could be 4 threads feeding events/facts in the working memory. Just each entry-point must not have more than one thread concurrently executing actions on it." This is good news. Thanks, Edson. I will come up with a propsed plan of attack tomorrow morning and respond back here for comments. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554701#554701] Start a new discussion in JBoss ESB Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss ESB Development] - How to configure and scale a large stateful CEP service?

by Edson Tirelli

Edson Tirelli [http://community.jboss.org/people/tirelli] replied to the discussion "How to configure and scale a large stateful CEP service?" To view the discussion, visit: http://community.jboss.org/message/554689#554689 -------------------------------------------------------------- That is a broad question! :) > Jeff DeLong wrote: > > The question is how to deploy and scale a large stateful CEP service. CEP services could be required to handle thousands or more events per minute, and hold millions of events in working memory (along with a huge number of facts). The memory requirements could be enormous (several gigabytes) > > An initial approach to these sorts of requirements is to deploy the CEP service on its own dedicated SOA-P server, and configure it's VM sizing appropriately. What would be reasonable here? I.e. what is the largest reasonable single server JVM configuration? 6 GB RAM, 8 GB RAM, ...? > > However, if the volume of events would overwhelm a single server, what are the options for scalability? Can a working memory be spread across VMs? Could Drools take advantage of a federated cache such as Infinispan? What other options are there to scale. > > Even if a single server is capable of handling the load, what would a highly available topology look like? Could a second server be deployed with the same configuration, and configure a service invoker load balancing policy that always went to the first service if it were available? Regarding memory, we have customers with up to 32Gb of memory running Drools, although I am not aware of any actually using over 20Gb. On 64 bits machines there is no real problem in increasing the heap if the memory is available. Regarding topology, a WM can not be distributed over multiple JVMs. There is some research going on on using Infinispan cache, but there is nothing yet on versions up to Drools 5.1. I think it is important to realize that competing products in general split and execute each and every query in a separate space with its own "local" memory. An analogy would be to create a separate knowledge base in drools for each rule/query and then spawn a separate session for each kbase. This is obviously sub-optimal as we would not benefit from inter-rule optimizations. So, we will probably have to try tunning large use cases by creating multiple kbases of "related" rules. This would allow us to easily distribute each kbase over different JVMs with their respective sessions. HA is something we need to discuss in separate. The engine does not support HA internally as of 5.1. It can be implemented as a master/master HA using external tools, and that is how it is usually done today. Although, alternatives need to be developed for the future. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554689#554689] Start a new discussion in JBoss ESB Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss ESB Development] - ESB CEP support for multiple event streams

by David Ward

David Ward [http://community.jboss.org/people/dward] replied to the discussion "ESB CEP support for multiple event streams" To view the discussion, visit: http://community.jboss.org/message/554682#554682 -------------------------------------------------------------- Not sure that another thread is necessary for the performance/scalability discussion. It's kinda ingrained as an aspect of this use case, right? On a somewhat related note, I'm concerned about thread safety. Gut first reaction to support what you want would be to have another action (or a property of this action), which specifies the a combination of the original ruleProperties (which is how we cache stateful sessions today) PLUS an entry-point name perhaps? The problem with that, in my mind, is synchronization, as stateful sessions are not thread-safe. In BusinessRulesProcessor, we currently lock() on access to the cached session. To have multiple actions being executed by services in different threads lock on the same stateful session is not very condusive to CEP applications, where Very High throughput is expected. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554682#554682] Start a new discussion in JBoss ESB Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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[JBoss ESB Development] - How to configure and scale a large stateful CEP service?

by Jeff DeLong

Jeff DeLong [http://community.jboss.org/people/jeffdelong] created the discussion "How to configure and scale a large stateful CEP service?" To view the discussion, visit: http://community.jboss.org/message/554681#554681 -------------------------------------------------------------- The question is how to deploy and scale a large stateful CEP service. CEP services could be required to handle thousands or more events per minute, and hold millions of events in working memory (along with a huge number of facts). The memory requirements could be enormous (several gigabytes) An initial approach to these sorts of requirements is to deploy the CEP service on its own dedicated SOA-P server, and configure it's VM sizing appropriately. What would be reasonable here? I.e. what is the largest reasonable single server JVM configuration? 6 GB RAM, 8 GB RAM, ...? However, if the volume of events would overwhelm a single server, what are the options for scalability? Can a working memory be spread across VMs? Could Drools take advantage of a federated cache such as Infinispan? What other options are there to scale. Even if a single server is capable of handling the load, what would a highly available topology look like? Could a second server be deployed with the same configuration, and configure a service invoker load balancing policy that always went to the first service if it were available? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554681#554681] Start a new discussion in JBoss ESB Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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Re: [jboss-dev-forums] [JBoss ESB Development] - ESB CEP support for multiple event streams

by Jeff DeLong

Jeff DeLong [http://community.jboss.org/people/jeffdelong] replied to the discussion "ESB CEP support for multiple event streams" To view the discussion, visit: http://community.jboss.org/message/554678#554678 -------------------------------------------------------------- In reviewing the original thread I think there is another point that was raised that deserves addressing, and that it scalability. I will start another thread and email Edson so that he can join in. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554678#554678] Start a new discussion in JBoss ESB Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 9 months

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jboss-dev-forums July 2010