On Fri, Jul 18, 2014 at 2:51 AM, Isuru Perera <isu...@wso2.com> wrote:
> WSO2 maintains a separate version for slf4j to make it an OSGi bundle. See > [1]. Since Carbon runs on OSGi container, all JARs need to be OSGi bundles. > > Cartridge Agent is just a simple Java program and it's okay to exclude the > wso2 version of slf4j. > Exactly. So this should be fine. > > I hope this helps. > > Thanks! > > [1] > http://maven.wso2.org/nexus/content/repositories/wso2maven2/slf4j/wso2/slf4j/1.5.10.wso2v1/slf4j-1.5.10.wso2v1.pom > > > On Thu, Jul 17, 2014 at 10:52 AM, Jeffrey Nguyen (jeffrngu) < > jeffr...@cisco.com> wrote: > >> >> Thank you Isuru for the pointer. I was able to modify the file you >> mentioned and confirmed cartridge agent zip file doesn't have the wso2 >> version of slf4j. >> >> When we removed this jar file, we fixed the issue of spawned VM not >> converging to active. However, logging for cartridge agent stopped >> working. Martin in our team seems to have found a work-around to get >> logging working again. However, given you mentioned this jar file is part >> of core carbon components, is it safe to remove it from cartridge agent? >> I suppose the wso2 version of slf4j was customized for some good reason >> right? >> We just want to make sure nothing within cartridge agent depends on wso2 >> slf4j. >> >> -Jeffrey >> >> From: Isuru Haththotuwa <isu...@apache.org> >> Reply-To: "dev@stratos.apache.org" <dev@stratos.apache.org> >> Date: Wednesday, July 16, 2014 9:27 PM >> To: dev <dev@stratos.apache.org> >> Subject: Re: Multiple versions of slf4j used in Stratos >> >> Hi Jeffrey, >> >> The slf4j 1.5.10.wso2v1 jar seems to be coming from the core carbon >> kernel components. Therefore, its not possible to remove it from the build. >> Since you have mentioned that manually removing it resolved the issue, you >> can exclude it from the cartridge agent build and test if the issue is >> resolved. To do this, please add an exclusion condition to [1], in the >> dependencySets element in your local build. There are some existing >> exclusions that you can refer to. >> >> [1]. >> products/cartridge-agent/modules/distribution/src/main/assembly/bin.xml >> >> >> On Tue, Jul 15, 2014 at 8:51 PM, Jeffrey Nguyen (jeffrngu) < >> jeffr...@cisco.com> wrote: >> >>> Changed subject… >>> >>> Hi Devs, >>> >>> Anybody has any pointers/suggestions on how to fix this issue with >>> multiple versions of slf4j library? We found this dependency problem in >>> cartridge agent. Not sure if this affects any other components in Stratos. >>> >>> Thanks, >>> -Jeffrey >>> >>> From: jeffrngu <jeffr...@cisco.com> >>> Reply-To: "dev@stratos.apache.org" <dev@stratos.apache.org> >>> Date: Monday, July 14, 2014 7:21 PM >>> To: "dev@stratos.apache.org" <dev@stratos.apache.org> >>> Subject: Re: cartridge agent startup error (4.0.0 based source, local >>> build) >>> >>> Hi Devs, >>> >>> Just wanted to follow up on this issue. We've confirmed that >>> removing >>> apache-stratos-cartridge-agent-4.0.0/lib/slf4j-1.5.10.wso2v1.jar fixed >>> this issue. We're trying to see where this dependency is configured. I >>> found the references to slf4j in [1], [2], and [3] in our code base. I >>> assume [1] and [2] are auto-generated during maven build. >>> >>> Any idea which config file controls contents of [1] and [2]? >>> >>> I also see that Stratos CLI code uses slf4j version 1.7.6 while cloud >>> controller, load balancer and the rest uses version 1.6.4. Should we try >>> to ensure all Stratos components references the same version of sl4j? If >>> so, how? >>> >>> >>> 1/- >>> products/stratos/modules/p2-profile-gen/target/wso2carbon-core-4.2.0/repository/components/default/configuration/org.eclipse.equinox.simpleconfigurator/ >>> bundles.info >>> slf4j,1.5.10.wso2v1,../plugins/slf4j_1.5.10.wso2v1.jar,4,true >>> >>> 2/- >>> components/org.apache.stratos.cartridge.agent/target/maven-shared-archive-resources/META-INF/DEPENDENCIES >>> - slf4j.wso2 (http://wso2.org) slf4j.wso2:slf4j:bundle:1.5.10.wso2v1 >>> >>> 3/- components/org.apache.stratos.cartridge.agent/pom.xml >>> <dependency> >>> <groupId>org.slf4j</groupId> >>> <artifactId>slf4j-log4j12</artifactId> >>> <version>1.7.5</version> >>> </dependency> >>> >>> Thanks, >>> -Jeffrey >>> >>> From: "Martin Eppel (meppel)" <mep...@cisco.com> >>> Reply-To: "dev@stratos.apache.org" <dev@stratos.apache.org> >>> Date: Sunday, July 13, 2014 12:03 PM >>> To: "dev@stratos.apache.org" <dev@stratos.apache.org> >>> Cc: "d...@stratos.incubator.apache.org" <d...@stratos.incubator.apache.org >>> > >>> Subject: RE: cartridge agent startup error (4.0.0 based source, local >>> build) >>> >>> We merged our local changes which (were working and based on rc4), >>> with 4.0.0 and now we are seeing this issue. Did we change library versions >>> (used by cartridge agent) between rc4 and 4.0.0 ? Which pom files define >>> all the cartridge agent dependencies ? >>> >>> >>> >>> Thanks >>> >>> >>> >>> Martin >>> >>> >>> >>> *From:*isu...@wso2.com [mailto:isu...@wso2.com <isu...@wso2.com>] *On >>> Behalf Of *Isuru Haththotuwa >>> *Sent:* Sunday, July 13, 2014 7:21 AM >>> *To:* dev >>> *Cc:* d...@stratos.incubator.apache.org >>> *Subject:* Re: cartridge agent startup error (4.0.0 based source, local >>> build) >>> >>> >>> >>> Hi Martin, >>> >>> I have not seen this, but a Google search tells me what you thought is >>> correct. There are different versions of API and Integration libraries. Do >>> you have any local changes? If so, please check in those classes if there >>> are any imports related to a different version of SL4J. >>> >>> >>> >>> On Sun, Jul 13, 2014 at 3:46 PM, Martin Eppel (meppel) <mep...@cisco.com> >>> wrote: >>> >>> We are getting an error when the cartridge agent is starting, looks like >>> the (local) build it is pulling 2 different versions of SLF4J (see >>> exception below) when the cartridge zip file is generated which causes an >>> incompatibility, has anyone else seen this ? >>> >>> Any idea what's causing it and how to resolve it ? >>> >>> Thanks >>> >>> Martin >>> >>> >>> log4j:WARN Please initialize the log4j system properly. >>> SLF4J: Class path contains multiple SLF4J bindings. >>> SLF4J: Found binding in >>> [jar:file:/opt/apache-stratos-cartridge-agent-4.0.0/lib/slf4j-1.5.10.wso2v1.jar!/org/slf4j/impl/StaticLoggerBinder.class] >>> SLF4J: Found binding in >>> [jar:file:/opt/apache-stratos-cartridge-agent-4.0.0/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class] >>> SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an >>> explanation. >>> log4j:WARN Please initialize the log4j system properly. >>> SLF4J: Class path contains multiple SLF4J bindings. >>> SLF4J: Found binding in >>> [jar:file:/opt/apache-stratos-cartridge-agent-4.0.0/lib/slf4j-1.5.10.wso2v1.jar!/org/slf4j/impl/StaticLoggerBinder.class] >>> SLF4J: Found binding in >>> [jar:file:/opt/apache-stratos-cartridge-agent-4.0.0/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class] >>> SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an >>> explanation. >>> "/var/log/apache-stratos/cartridge-agent.log" 48L, 5449C >>> 1,1 Top >>> at >>> org.apache.activemq.transport.AbstractInactivityMonitor.onException(AbstractInactivityMonitor.java:310) >>> at >>> org.apache.activemq.transport.TransportSupport.onException(TransportSupport.java:96) >>> at >>> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:200) >>> at java.lang.Thread.run(Thread.java:745) >>> Exception in thread "Thread-3" java.lang.NoSuchMethodError: >>> org.slf4j.helpers.MessageFormatter.format(Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/String; >>> at >>> org.slf4j.impl.Log4jLoggerAdapter.debug(Log4jLoggerAdapter.java:246) >>> at >>> org.apache.activemq.thread.TaskRunnerFactory.init(TaskRunnerFactory.java:91) >>> at >>> org.apache.activemq.thread.TaskRunnerFactory.execute(TaskRunnerFactory.java:149) >>> at >>> org.apache.activemq.thread.TaskRunnerFactory.execute(TaskRunnerFactory.java:145) >>> at >>> org.apache.activemq.transport.tcp.TcpTransport.doStop(TcpTransport.java:538) >>> at >>> org.apache.activemq.util.ServiceSupport.stop(ServiceSupport.java:71) >>> at >>> org.apache.activemq.transport.tcp.TcpTransport.stop(TcpTransport.java:582) >>> at >>> org.apache.activemq.transport.AbstractInactivityMonitor.stop(AbstractInactivityMonitor.java:145) >>> at >>> org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:65) >>> at >>> org.apache.activemq.transport.WireFormatNegotiator.stop(WireFormatNegotiator.java:91) >>> at >>> org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:65) >>> at >>> org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:65) >>> at >>> org.apache.activemq.transport.ResponseCorrelator.stop(ResponseCorrelator.java:132) >>> at >>> org.apache.activemq.util.ServiceSupport.dispose(ServiceSupport.java:43) >>> at >>> org.apache.activemq.ActiveMQConnection.close(ActiveMQConnection.java:725) >>> at >>> org.apache.stratos.messaging.broker.connect.TopicConnector.close(TopicConnector.java:86) >>> at >>> org.apache.stratos.messaging.broker.subscribe.TopicSubscriber.run(TopicSubscriber.java:157) >>> at java.lang.Thread.run(Thread.java:745) >>> >>> -- >>> >>> Thanks and Regards, >>> >>> Isuru H. >>> >>> +94 716 358 048 >>> >>> -- >>> <%2B94%20716%20358%20048> >>> <%2B94%20716%20358%20048> >>> Thanks and Regards, >>> >>> Isuru H. >>> <%2B94%20716%20358%20048> >>> +94 716 358 048* <http://wso2.com/>* >>> >>> >>> * <http://wso2.com/>* >>> >>> >>> > > > -- > Isuru Perera > Senior Software Engineer | WSO2, Inc. | http://wso2.com/ > Lean . Enterprise . Middleware > > about.me/chrishantha > > -- > <http://about.me/chrishantha> > Thanks and Regards, > > Isuru H. > <http://about.me/chrishantha> > +94 716 358 048 <http://about.me/chrishantha>* <http://wso2.com/>* > > > * <http://wso2.com/>* > > >
