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Posted to dev@jackrabbit.apache.org by "Shashank Gupta (JIRA)" <ji...@apache.org> on 2015/05/06 12:26:59 UTC
[jira] [Assigned] (JCR-3873) CachingDataStore not safe against
crashes, corrupted uploads file will prevent system startup
[ https://issues.apache.org/jira/browse/JCR-3873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shashank Gupta reassigned JCR-3873:
-----------------------------------
Assignee: Shashank Gupta
> CachingDataStore not safe against crashes, corrupted uploads file will prevent system startup
> ---------------------------------------------------------------------------------------------
>
> Key: JCR-3873
> URL: https://issues.apache.org/jira/browse/JCR-3873
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-data
> Affects Versions: 2.9.1
> Reporter: Alexander Klimetschek
> Assignee: Shashank Gupta
>
> An NPE in OAK-2811 lead to the data store not being closed normally on shutdown, in turn leaving the {{async-pending-uploads.ser}} file corrupted (on this system, binaries were constantly uploaded, so likely the queue to upload it to S3 in this case was still full) and then on the next startup, the CachingDataStore failed to start up, preventing the repository and the system from starting:
> {noformat}
> 24.04.2015 13:21:28.602 *ERROR* [FelixStartLevel] org.apache.jackrabbit.oak-core [org.apache.jackrabbit.oak.plugins.blob.datastore.S3DataStore(79)] The activate method has thrown an exception (javax.jcr.RepositoryException: java.io.EOFException)
> javax.jcr.RepositoryException: java.io.EOFException
> at org.apache.jackrabbit.core.data.CachingDataStore.init(CachingDataStore.java:337)
> at org.apache.jackrabbit.oak.plugins.blob.datastore.AbstractDataStoreService.activate(AbstractDataStoreService.java:61)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:222)
> at org.apache.felix.scr.impl.helper.BaseMethod.access$500(BaseMethod.java:37)
> at org.apache.felix.scr.impl.helper.BaseMethod$Resolved.invoke(BaseMethod.java:615)
> at org.apache.felix.scr.impl.helper.BaseMethod.invoke(BaseMethod.java:499)
> at org.apache.felix.scr.impl.helper.ActivateMethod.invoke(ActivateMethod.java:295)
> at org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject(SingleComponentManager.java:302)
> at org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent(SingleComponentManager.java:113)
> at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:832)
> at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:799)
> at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:724)
> at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:399)
> at org.apache.felix.scr.impl.config.ConfigurableComponentHolder.enableComponents(ConfigurableComponentHolder.java:669)
> at org.apache.felix.scr.impl.BundleComponentActivator.initialEnable(BundleComponentActivator.java:184)
> at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:332)
> at org.apache.felix.scr.impl.Activator.access$000(Activator.java:49)
> at org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:257)
> at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259)
> at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232)
> at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:482)
> at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:415)
> at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232)
> at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444)
> at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:913)
> at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:834)
> at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:516)
> at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4531)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:2169)
> at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1368)
> at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.io.EOFException: null
> at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2325)
> at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2794)
> at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:801)
> at java.io.ObjectInputStream.<init>(ObjectInputStream.java:299)
> at org.apache.jackrabbit.core.data.AsyncUploadCache.deserializeAsyncUploadMap(AsyncUploadCache.java:311)
> at org.apache.jackrabbit.core.data.AsyncUploadCache.init(AsyncUploadCache.java:243)
> at org.apache.jackrabbit.core.data.CachingDataStore.init(CachingDataStore.java:264)
> ... 35 common frames omitted
> {noformat}
> We had to manually remove the file so that the system would start again. AFAIU, this meant some data loss.
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