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https://issues.apache.org/jira/browse/OAK-216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13437653#comment-13437653
]
Chetan Mehrotra commented on OAK-216:
-------------------------------------
Got a similar exception while running Sling on accessing some urls. It went
away after server restart
{noformat}
19.08.2012 23:39:02.877 *ERROR* [127.0.0.1 [1345399742851] GET
/libs/granite/security/content/admin.html HTTP/1.1]
org.apache.sling.engine.impl.SlingMainServlet service: Uncaught Problem
handling the request org.apache.jackrabbit.mk.api.MicroKernelException:
org.apache.jackrabbit.mk.store.NotFoundException: 0000000000049ad0
at
org.apache.jackrabbit.mk.core.MicroKernelImpl.getNodes(MicroKernelImpl.java:352)
at
org.apache.jackrabbit.oak.kernel.KernelNodeState.init(KernelNodeState.java:94)
at
org.apache.jackrabbit.oak.kernel.KernelNodeState.getChildNode(KernelNodeState.java:156)
at
org.apache.jackrabbit.oak.spi.state.AbstractNodeState.hasChildNode(AbstractNodeState.java:61)
at
org.apache.jackrabbit.oak.plugins.memory.MemoryNodeBuilder.hasChildNode(MemoryNodeBuilder.java:226)
at
org.apache.jackrabbit.oak.core.TreeImpl.internalGetChild(TreeImpl.java:421)
at org.apache.jackrabbit.oak.core.TreeImpl.getTree(TreeImpl.java:409)
at org.apache.jackrabbit.oak.core.RootImpl.getTree(RootImpl.java:135)
at
org.apache.jackrabbit.oak.jcr.SessionDelegate.getTree(SessionDelegate.java:450)
at
org.apache.jackrabbit.oak.jcr.SessionDelegate.getNode(SessionDelegate.java:181)
at
org.apache.jackrabbit.oak.jcr.SessionImpl$4.perform(SessionImpl.java:208)
at
org.apache.jackrabbit.oak.jcr.SessionImpl$4.perform(SessionImpl.java:204)
at
org.apache.jackrabbit.oak.jcr.SessionDelegate.perform(SessionDelegate.java:116)
at
org.apache.jackrabbit.oak.jcr.SessionImpl.nodeExists(SessionImpl.java:204)
at
org.apache.jackrabbit.oak.jcr.SessionImpl.itemExists(SessionImpl.java:176)
at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.sling.jcr.base.SessionProxyHandler$SessionProxyInvocationHandler.invoke(SessionProxyHandler.java:109)
at $Proxy9.itemExists(Unknown Source)
at
org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.itemExists(JcrResourceProvider.java:204)
at
org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.createResource(JcrResourceProvider.java:171)
at
org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.listChildren(JcrResourceProvider.java:142)
at
org.apache.sling.resourceresolver.impl.tree.ResourceProviderFactoryHandler.listChildren(ResourceProviderFactoryHandler.java:118)
at
org.apache.sling.resourceresolver.impl.helper.ResourceIterator.seek(ResourceIterator.java:178)
at
org.apache.sling.resourceresolver.impl.helper.ResourceIterator.<init>(ResourceIterator.java:151)
at
org.apache.sling.resourceresolver.impl.ResourceResolverImpl.listChildren(ResourceResolverImpl.java:615)
at
org.apache.sling.servlets.resolver.internal.helper.ResourceCollector.getWeightedResources(ResourceCollector.java:191)
at
org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.getServlets(AbstractResourceCollector.java:90)
at
org.apache.sling.servlets.resolver.internal.SlingServletResolver.getServlet(SlingServletResolver.java:635)
at
org.apache.sling.servlets.resolver.internal.SlingServletResolver.handleError(SlingServletResolver.java:511)
at
org.apache.sling.engine.impl.SlingRequestProcessorImpl$2.render(SlingRequestProcessorImpl.java:349)
at
org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64)
at
org.apache.sling.rewriter.impl.RewriterFilter.doFilter(RewriterFilter.java:83)
at
org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at
org.apache.sling.engine.impl.SlingRequestProcessorImpl.handleError(SlingRequestProcessorImpl.java:356)
at
org.apache.sling.engine.impl.SlingRequestProcessorImpl.processRequest(SlingRequestProcessorImpl.java:221)
at
org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:206)
at
org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:96)
at
org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
at
org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:117)
at
org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
at
org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:179)
at
org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
at
org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:238)
at
org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
at
org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:75)
at
org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
at
org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
at
org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
at
org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:250)
at
com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:321)
at
com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:340)
at
com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:383)
at
com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:351)
at
com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:625)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.jackrabbit.mk.store.NotFoundException: 0000000000049ad0
at
org.apache.jackrabbit.mk.persistence.H2Persistence.readCommit(H2Persistence.java:175)
at
org.apache.jackrabbit.mk.store.DefaultRevisionStore.getCommit(DefaultRevisionStore.java:377)
at
org.apache.jackrabbit.mk.store.DefaultRevisionStore.getRootNode(DefaultRevisionStore.java:385)
at
org.apache.jackrabbit.mk.core.Repository.getNodeState(Repository.java:168)
at
org.apache.jackrabbit.mk.core.MicroKernelImpl.getNodes(MicroKernelImpl.java:343)
... 73 more
{noformat}
> Occasional org.apache.jackrabbit.mk.store.NotFoundExceptions
> ------------------------------------------------------------
>
> Key: OAK-216
> URL: https://issues.apache.org/jira/browse/OAK-216
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: mk
> Reporter: Jukka Zitting
>
> Every now and then our builds fail with one or another of the JCR TCK tests
> failing due to a {{org.apache.jackrabbit.mk.store.NotFoundException}} being
> thrown on some revision in the MicroKernel.
> Since the garbage collector is currently only instructed to remove revisions
> that are over 60 minutes old, such lost revisions should never occur in
> normal builds.
> The following change to line 163 of {{DefaultRevisionStore.java}} makes the
> problem easy to reproduce reliably, which strongly suggests that this problem
> indeed is caused or at least triggered by the garbage collector:
> {code}
> - }, 60, 60, TimeUnit.SECONDS);
> + }, 1, 1, TimeUnit.SECONDS);
> {code}
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