deadlock di aggiornamento dei metadati (spring-security-saml)

Question

ogni due giorni la nostra app Web che utilizza SAML Spring Security ha un deadlock. Deadlock si verifica sui metadati di aggiornamento.

Ho provato anche a capire qual è il problema dal codice sorgente ma senza successo.

Questo è stacktrace da tre fili che sono in stallo:

1. dello stack metadati-reload [136] (BLOCCO)

org.opensaml.saml2.metadata.provider.AbstractMetadataProvider.initialize line: 402 
    org.springframework.security.saml.metadata.ExtendedMetadataDelegate.initialize line: 167 
    org.springframework.security.saml.metadata.MetadataManager.initializeProvider line: 398 
    org.springframework.security.saml.metadata.MetadataManager.refreshMetadata line: 246 
    org.springframework.security.saml.metadata.CachingMetadataManager.refreshMetadata line: 86 
    org.springframework.security.saml.metadata.MetadataManager$RefreshTask.run line: 1027 
    java.util.TimerThread.mainLoop line: 555 
    java.util.TimerThread.run line: 505 

2. dello stack Timer-5 [135] (ATTESA)

sun.misc.Unsafe.park line: not available [native method] 
    java.util.concurrent.locks.LockSupport.park line: 186 
    java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt line: 834 
    java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued line: 867 
    java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire line: 1197 
    java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock line: 945 
    org.springframework.security.saml.metadata.MetadataManager.setRefreshRequired line: 983 
    org.springframework.security.saml.metadata.MetadataManager$MetadataProviderObserver.onEvent line: 1047 
    org.opensaml.saml2.metadata.provider.ChainingMetadataProvider.emitChangeEvent line: 359 
    org.opensaml.saml2.metadata.provider.ChainingMetadataProvider$ContainedProviderObserver.onEvent line: 371 
    org.opensaml.saml2.metadata.provider.AbstractObservableMetadataProvider.emitChangeEvent line: 62 
    org.opensaml.saml2.metadata.provider.AbstractReloadingMetadataProvider.processNonExpiredMetadata line: 427 
    org.opensaml.saml2.metadata.provider.AbstractReloadingMetadataProvider.processNewMetadata line: 355 
    org.opensaml.saml2.metadata.provider.AbstractReloadingMetadataProvider.refresh line: 261 
    org.opensaml.saml2.metadata.provider.AbstractReloadingMetadataProvider$RefreshMetadataTask.run line: 513 
    java.util.TimerThread.mainLoop line: 555 
    java.util.TimerThread.run line: 505 

3. Stack Trace http-bio-7020-exec-548 [614] (ATTESA)

sun.misc.Unsafe.park line: not available [native method] 
    java.util.concurrent.locks.LockSupport.park line: 186 
    java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt line: 834 
    java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared line: 964 
    java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared line: 1282 
    java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock line: 731 
    org.springframework.security.saml.metadata.CachingMetadataManager.getFromCacheOrUpdate line: 160 
    org.springframework.security.saml.metadata.CachingMetadataManager.getEntityDescriptor line: 116 
    org.springframework.security.saml.context.SAMLContextProviderImpl.populateLocalEntity line: 314 
    org.springframework.security.saml.context.SAMLContextProviderImpl.populateLocalContext line: 216 
    org.springframework.security.saml.context.SAMLContextProviderImpl.getLocalAndPeerEntity line: 126 
    org.springframework.security.saml.SAMLEntryPoint.commence line: 146 
    org.springframework.security.saml.SAMLEntryPoint.doFilter line: 107 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.FilterChainProxy.doFilterInternal line: 192 
    org.springframework.security.web.FilterChainProxy.doFilter line: 166 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter line: 199 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.authentication.logout.LogoutFilter.doFilter line: 110 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal line: 50 
    org.springframework.web.filter.OncePerRequestFilter.doFilter line: 106 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.session.ConcurrentSessionFilter.doFilter line: 125 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter line: 87 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.saml.metadata.MetadataGeneratorFilter.doFilter line: 87 
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter line: 342 
    org.springframework.security.web.FilterChainProxy.doFilterInternal line: 192 
    org.springframework.security.web.FilterChainProxy.doFilter line: 160 
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate line: 343 
    org.springframework.web.filter.DelegatingFilterProxy.doFilter line: 260 
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter line: 241 
    org.apache.catalina.core.ApplicationFilterChain.doFilter line: 208 
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal line: 88 
    org.springframework.web.filter.OncePerRequestFilter.doFilter line: 106 
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter line: 241 
    org.apache.catalina.core.ApplicationFilterChain.doFilter line: 208 
    hr.isvu.studomat.web.filter.RequestLoggerFilter.proslijediObraduZahtjeva line: 126 
    hr.isvu.studomat.web.filter.RequestLoggerFilter.doFilter line: 57 
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter line: 241 
    org.apache.catalina.core.ApplicationFilterChain.doFilter line: 208 
    org.apache.catalina.core.StandardWrapperValve.invoke line: 220 
    org.apache.catalina.core.StandardContextValve.invoke line: 122 
    org.apache.catalina.authenticator.AuthenticatorBase.invoke line: 501 
    org.apache.catalina.core.StandardHostValve.invoke line: 171 
    org.apache.catalina.valves.ErrorReportValve.invoke line: 102 
    org.apache.catalina.valves.AccessLogValve.invoke line: 950 
    org.apache.catalina.core.StandardEngineValve.invoke line: 116 
    org.apache.catalina.connector.CoyoteAdapter.service line: 408 
    org.apache.coyote.http11.AbstractHttp11Processor.process line: 1040 
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process line: 607 
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run line: 314 
    java.util.concurrent.ThreadPoolExecutor.runWorker line: 1145 
    java.util.concurrent.ThreadPoolExecutor$Worker.run line: 615 
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run line: 61 
    java.lang.Thread.run line: 722 

Usiamo:

1. primavera-sicurezza-SAML2-core 1.0.0.RELEASE
2. org.opensaml .opensaml 2.6.1

Questo è l'aggiornamento dei metadati di configurazione:

... 
     <!-- IDP Metadata configuration - paths to metadata of IDPs in circle of 
       trust is here --> 
     <bean id="metadata" 
       class="org.springframework.security.saml.metadata.CachingMetadataManager"> 
       <constructor-arg> 
         <list> 
           <bean class="org.opensaml.saml2.metadata.provider.HTTPMetadataProvider"> 
             <constructor-arg> 
               <value>https://www.example.org/saml2/idp/metadata.php</value> 
             </constructor-arg> 
             <constructor-arg> 
               <value type="int">5000</value> 
             </constructor-arg> 
             <property name="parserPool" ref="parserPool" /> 
           </bean> 
         </list> 
       </constructor-arg> 
     </bean> 
... 

Come possiamo risolvere questo deadlock?

Grazie in anticipo, Denis

Answer 1

Questa è una questione valida, ho aperto un ticket in Jira e spinto un fix to master. Ci dovrebbe essere una nuova build disponibile domani allo snapshot repo, puoi ripetere il test?