This looks to be caused by the request for the XHTML DTD being rejected by the W3C web server with a 503 error - see http://www.w3.org/blog/systeam/2008/02/08/w3c_s_excessive_dtd_traffic for details. It looks like the fix will be to modify the RssParser class from RSS4J to use the Xerces XML Catalog (http://xerces.apache.org/xerces2-j/faq-xcatalogs.html) support to cache the XHTML DTD and other DTDs, schemas, etc. Based on the comments on the W3C blog, we may also need to set the User-Agent to tell the W3C web server we're not the raw Java libs. Note, we need to find out where the source code for our forked RSS4J version lives, since we'll need to update it. Jess Sant worked on that. Charles said John Sanda may know where it is. Here's the stack trace for the error: 2009-09-11 11:19:46,613 INFO [org.quartz.core.JobRunShell] Job syncContentSource.f57d23fd--d225257a--123a9b04a3f threw a JobExecutionException: org.quartz.JobExecutionException: Failed to sync content source in job [JobDetail 'syncContentSource.f57d23fd--d225257a--123a9b04a3f': jobClass: 'org.rhq.enterprise.server.scheduler.jobs.ContentSourceSyncJob isStateful: true isVolatile: false isDurable: false requestsRecovers: false] [See nested exception: java.lang.Exception: Failed to sync content source [10001]] at org.rhq.enterprise.server.scheduler.jobs.ContentSourceSyncJob.execute(ContentSourceSyncJob.java:89) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525) Caused by: java.lang.Exception: Failed to sync content source [10001] at org.rhq.enterprise.server.plugin.content.ContentSourceAdapterManager.synchronizeContentSource(ContentSourceAdapterManager.java:261) at org.rhq.enterprise.server.content.ContentSourceManagerBean.internalSynchronizeContentSource(ContentSourceManagerBean.java:717) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) at org.rhq.enterprise.server.common.TransactionInterruptInterceptor.addCheckedActionToTransactionManager(TransactionInterruptInterceptor.java:77) at sun.reflect.GeneratedMethodAccessor159.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118) at org.rhq.enterprise.server.authz.RequiredPermissionsInterceptor.checkRequiredPermissions(RequiredPermissionsInterceptor.java:153) at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118) at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPolicy.invokeInNoTx(TxPolicy.java:66) at org.jboss.aspects.tx.TxInterceptor$Never.invoke(TxInterceptor.java:66) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:240) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:210) at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:84) at $Proxy254.internalSynchronizeContentSource(Unknown Source) at org.rhq.enterprise.server.scheduler.jobs.ContentSourceSyncJob.synchronizeAndLoad(ContentSourceSyncJob.java:142) at org.rhq.enterprise.server.scheduler.jobs.ContentSourceSyncJob.execute(ContentSourceSyncJob.java:84) ... 2 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.rhq.enterprise.server.plugin.content.ContentSourceAdapterManager$IsolatedInvocationHandler.invoke(ContentSourceAdapterManager.java:571) at $Proxy446.synchronizePackages(Unknown Source) at org.rhq.enterprise.server.plugin.content.ContentSourceAdapterManager.synchronizeContentSource(ContentSourceAdapterManager.java:206) ... 45 more Caused by: java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd at churchillobjects.rss4j.parser.RssParser.parseRss(RssParser.java:221) at churchillobjects.rss4j.parser.RssParser.parseRss(RssParser.java:117) at org.rhq.enterprise.server.plugins.jboss.software.JBossSoftwareContentSourceAdapter.retrieveRssDocument(JBossSoftwareContentSourceAdapter.java:227) at org.rhq.enterprise.server.plugins.jboss.software.JBossSoftwareContentSourceAdapter.synchronizePackages(JBossSoftwareContentSourceAdapter.java:120) ... 52 more
The RSS4J source is available in the Maven repo (http://repository.jboss.com/maven2/rss4j/rss4j/0.92-on.2/rss4j-0.92-on.2-sources.jar). If we can't find where it is in some SVN repo, we may just want to add it to the RHQ SVN repo and use that location to maintain it from here on out. Charles, to clarify, did you say to ask John because the CSP also uses the same modified RSS4J that we do and it therefore might live in their SVN?
This bug was previously known as http://jira.rhq-project.org/browse/RHQ-2421
Temporarily adding the keyword "SubBug" so we can be sure we have accounted for all the bugs. keyword: new = Tracking + FutureFeature + SubBug
making sure we're not missing any bugs in rhq_triage
ips - what's status on this?