AEM Author OnlineBackup failure with Server startup error:Attempt to read external blob with blobId [82f7921e11be8b37162750055df323760eaaa4f2#29624] without specifying BlobStore

I used AEM Author OnlineBackup feature for a backup action. The Author server size is round 280Gbyte and running well more than 2 months.

Action command:

curl -u admin:password -X POST http://localhost:4502/system/console/jmx/com.adobe.granite:type=Repository/op/startBackup/java.lang.String?target=backup_20180305

I have changed parameter delay=0 by JMX console before the action.

The backup process was done with completed status(in JMX console) and take about 8 hours:

After that, i copied the backup folder to another server uses same path/location/temp folder, then chmod -R 777 to the folder.

And then start it with no any other changes.

Action command:

/apps/author/crx-quickstart/bin/start

Following is the startup info(stdout.log):

07.03.2018 13:10:25.134 *INFO * [main] Setting sling.home=crx-quickstart (command line)

07.03.2018 13:10:25.165 *INFO * [main] No Apache Sling running at /127.0.0.1:37305

07.03.2018 13:10:25.166 *INFO * [main] Starting Apache Sling in /apps/author/crx-quickstart

07.03.2018 13:10:25.169 *INFO * [Apache Sling Control Listener@/127.0.0.1:46119] Apache Sling Control Listener started

07.03.2018 13:10:25.171 *INFO * [main] Sling  Extension Lib Home : /apps/author/crx-quickstart/launchpad/ext

07.03.2018 13:10:25.195 *INFO * [main] Checking launcher JAR in folder /apps/author/crx-quickstart/launchpad

07.03.2018 13:10:25.243 *INFO * [main] Existing launcher is up to date, using it: 5.4.0.2_6_10-B004 (org.apache.sling.launchpad.base.jar)

07.03.2018 13:10:25.245 *INFO * [main] Loading launcher class org.apache.sling.launchpad.base.app.MainDelegate from org.apache.sling.launchpad.base.jar

07.03.2018 13:10:25.245 *INFO * [main] External Libs Home (ext) is null or does not exists.

07.03.2018 13:10:25.293 *INFO * [main] Setting sling.launchpad=/apps/author/crx-quickstart/launchpad

07.03.2018 13:10:25.294 *INFO * [main] Setting sling.home=crx-quickstart

07.03.2018 13:10:25.294 *INFO * [main] Setting sling.properties=conf/sling.properties

07.03.2018 13:10:25.294 *INFO * [main] Setting org.osgi.service.http.port=4502

07.03.2018 13:10:25.294 *INFO * [main] Starting launcher ...

07.03.2018 13:10:25.312 *INFO * [main] HTTP server port: 4502

07.03.2018 13:10:40.320 *INFO* [FelixStartLevel] org.apache.sling.commons.logservice Service [org.apache.sling.commons.logservice.internal.LogServiceFactory,13, [org.osgi.service.log.LogService]] ServiceEvent REGISTERED

07.03.2018 13:10:40.324 *INFO* [OsgiInstallerImpl] org.apache.sling.installer.core.impl.OsgiInstallerImpl Apache Sling OSGi Installer Service started.

07.03.2018 13:10:40.327 *INFO* [FelixStartLevel] org.apache.sling.commons.logservice Service [org.apache.sling.commons.logservice.internal.LogReaderServiceFactory,14, [org.osgi.service.log.LogReaderService]] ServiceEvent REGISTERED

07.03.2018 13:10:40.327 *INFO* [FelixStartLevel] org.apache.sling.commons.logservice BundleEvent STARTED

07.03.2018 13:10:40.333 *INFO* [FelixStartLevel] slf4j.api BundleEvent STARTING

07.03.2018 13:10:40.333 *INFO* [FelixStartLevel] slf4j.api BundleEvent STARTED

07.03.2018 13:10:40.333 *INFO* [FelixStartLevel] org.apache.sling.commons.log BundleEvent STARTING

07.03.2018 13:10:40.359 *INFO* [FelixStartLevel] org.apache.sling.commons.log Service [org.apache.sling.commons.log.LogManager,15, [org.osgi.service.cm.ManagedService]] ServiceEvent REGISTERED

07.03.2018 13:10:40.359 *INFO* [FelixStartLevel] org.apache.sling.commons.log Service [org.apache.sling.commons.log.LogManager.factory.writer,16, [org.osgi.service.cm.ManagedServiceFactory]] ServiceEvent REGISTERED

07.03.2018 13:10:40.360 *INFO* [FelixStartLevel] org.apache.sling.commons.log Service [org.apache.sling.commons.log.LogManager.factory.config,17, [org.osgi.service.cm.ManagedServiceFactory]] ServiceEvent REGISTERED

07.03.2018 13:10:40.361 *INFO* [FelixStartLevel] org.apache.sling.commons.log Service [Sling Log Support,18, [javax.servlet.Servlet]] ServiceEvent REGISTERED

07.03.2018 13:10:40.362 *INFO* [FelixStartLevel] org.apache.sling.commons.log Service [Sling Log Configuration Printer,19, [org.apache.sling.commons.log.logback.internal.SlingConfigurationPrinter]] ServiceEvent REGISTERED

07.03.2018 13:10:40.363 *INFO* [FelixStartLevel] org.apache.sling.commons.log Service [Sling Log Reset Event Handler,20, [org.osgi.service.event.EventHandler]] ServiceEvent REGISTERED

07.03.2018 13:10:40.375 *INFO* [FelixStartLevel] org.apache.sling.commons.log.logback.internal.Activator LogbackManager initialized at bundle startup

07.03.2018 13:10:40.380 *INFO* [FelixStartLevel] org.apache.sling.commons.log BundleEvent STARTED

07.03.2018 13:10:40.381 *INFO* [FelixStartLevel] org.apache.sling.settings BundleEvent STARTING

07.03.2018 13:10:40.394 *INFO* [FelixStartLevel] org.apache.sling.settings.impl.SlingSettingsServiceImpl Read Sling ID 9bd74279-7e17-4ab0-bfc3-691fde09339c from file /apps/author/crx-quickstart/launchpad/felix/bundle11/data/sling.id.file

07.03.2018 13:10:40.406 *INFO* [FelixStartLevel] org.apache.sling.settings.impl.SlingSettingsServiceImpl Active run modes: [author, crx3tar, crx3, qa, nosamplecontent, china]

07.03.2018 13:10:40.407 *INFO* [FelixStartLevel] org.apache.sling.launchpad.installer Service [Apache Sling Launchpad Startup Listener,22, [org.apache.sling.installer.api.event.InstallationListener]] ServiceEvent REGISTERED

07.03.2018 13:10:40.411 *INFO* [FelixStartLevel] org.apache.sling.launchpad.installer.impl.LaunchpadConfigInstaller Activating launchpad config installer, configuration path=resources/config, install path=resources/install

07.03.2018 13:10:45.551 *ERROR* [CM Configuration Updater (ManagedServiceFactory Update: factoryPid=[org.apache.sling.commons.log.LogManager.factory.config])] org.apache.felix.configadmin Service [org.apache.felix.cm.ConfigurationAdmin,26, [org.osgi.service.cm.ConfigurationAdmin]] [org.osgi.service.cm.ManagedServiceFactory, id=17, bundle=9/slinginstall:org.apache.sling.commons.log-3.0.0.jar]: Updating property org.apache.sling.commons.log.names of configuration org.apache.sling.commons.log.LogManager.factory.config.bf341473-b4ca-4785-9afd-80987e6243a5 caused a problem: Category log.history already defined by configuration org.apache.sling.commons.log.LogManager.factory.config.bf341473-b4ca-4785-9afd-80987e6243a5 (org.osgi.service.cm.ConfigurationException: org.apache.sling.commons.log.names : Category log.history already defined by configuration org.apache.sling.commons.log.LogManager.factory.config.bf341473-b4ca-4785-9afd-80987e6243a5)

org.osgi.service.cm.ConfigurationException: org.apache.sling.commons.log.names : Category log.history already defined by configuration org.apache.sling.commons.log.LogManager.factory.config.bf341473-b4ca-4785-9afd-80987e6243a5

        at org.apache.sling.commons.log.logback.internal.config.LoggerManagedServiceFactory.updated(LoggerManagedServiceFactory.java:36)

        at org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.updated(ManagedServiceFactoryTracker.java:159)

        at org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.provideConfiguration(ManagedServiceFactoryTracker.java:93)

        at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceFactoryUpdate.provide(ConfigurationManager.java:1602)

        at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceFactoryUpdate.run(ConfigurationManager.java:1545)

        at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:143)

        at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:110)

        at java.lang.Thread.run(Thread.java:722)

Caused by: org.apache.sling.commons.log.logback.internal.config.ConfigurationException:

        at org.apache.sling.commons.log.logback.internal.LogConfigManager.updateLoggerConfiguration(LogConfigManager.java:533)

        at org.apache.sling.commons.log.logback.internal.config.LoggerManagedServiceFactory.updated(LoggerManagedServiceFactory.java:34)

        ... 7 common frames omitted

07.03.2018 13:10:45.628 *INFO* [CM Configuration Updater (ManagedService Update: pid=[org.apache.aries.transaction])] org.apache.aries.transaction.manager Service [40, [org.apache.aries.transaction.AriesTransactionManager, javax.transaction.TransactionManager, javax.transaction.TransactionSynchronizationRegistry, javax.transaction.UserTransaction, org.apache.geronimo.transaction.manager.RecoverableTransactionManager]] ServiceEvent REGISTERED

07.03.2018 13:10:45.668 *INFO* [FelixStartLevel] com.adobe.cq.cq-deserialization-firewall Service [com.adobe.cq.deserfw.impl.DeserializationFirewallImpl,41, [com.adobe.cq.deserfw.impl.intapi.DeserializationFirewallStatus]] ServiceEvent REGISTERED

07.03.2018 13:10:45.674 *INFO* [FelixStartLevel] com.adobe.cq.cq-deserialization-firewall Service [com.adobe.cq.deserfw.impl.healthcheck.DeserializationAgentVMClassCheck,42, [org.apache.sling.hc.api.HealthCheck]] ServiceEvent REGISTERED

07.03.2018 13:10:45.675 *INFO* [FelixStartLevel] com.adobe.cq.cq-deserialization-firewall Service [com.adobe.cq.deserfw.impl.healthcheck.DeserializationAgentLoadedCheck,43, [org.apache.sling.hc.api.HealthCheck]] ServiceEvent REGISTERED

07.03.2018 13:10:45.676 *INFO* [FelixStartLevel] com.adobe.cq.cq-deserialization-firewall Service [com.adobe.cq.deserfw.impl.healthcheck.DeserializationAgentFunctionalCheck,44, [org.apache.sling.hc.api.HealthCheck]] ServiceEvent REGISTERED

Attempting to load ESAPI.properties via file I/O.

Attempting to load ESAPI.properties as resource file via file I/O.

Not found in 'org.owasp.esapi.resources' directory or file not readable: /apps/author/ESAPI.properties

Not found in SystemResource Directory/resourceDirectory: .esapi/ESAPI.properties

Not found in 'user.home' (/root) directory: /root/esapi/ESAPI.properties

Loading ESAPI.properties via file I/O failed. Exception was: java.io.FileNotFoundException

Attempting to load ESAPI.properties via the classpath.

SUCCESSFULLY LOADED ESAPI.properties via the CLASSPATH from '/ (root)' using class loader for DefaultSecurityConfiguration class!

Attempting to load validation.properties via file I/O.

Attempting to load validation.properties as resource file via file I/O.

Not found in 'org.owasp.esapi.resources' directory or file not readable: /apps/author/validation.properties

Not found in SystemResource Directory/resourceDirectory: .esapi/validation.properties

Not found in 'user.home' (/root) directory: /root/esapi/validation.properties

Loading validation.properties via file I/O failed.

Attempting to load validation.properties via the classpath.

SUCCESSFULLY LOADED validation.properties via the CLASSPATH from '/ (root)' using class loader for DefaultSecurityConfiguration class!

RAWProcessor succesfully installed

Exception in thread "sling-event-processing-pool-1" java.lang.IllegalStateException: Attempt to read external blob with blobId [82f7921e11be8b37162750055df323760eaaa4f2#29624] without specifying BlobStore

        at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.readBlob(FileStore.java:1337)

        at org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.getBlob(SegmentBlob.java:261)

        at org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.getLength(SegmentBlob.java:269)

        at org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.length(SegmentBlob.java:109)

        at org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectory$OakIndexFile.<init>(OakDirectory.java:330)

        at org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectory$OakIndexInput.<init>(OakDirectory.java:507)

        at org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectory.fileLength(OakDirectory.java:144)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier$CopyOnReadDirectory.copyFilesToLocal(IndexCopier.java:457)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier$CopyOnReadDirectory.prefetchIndexFiles(IndexCopier.java:413)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier$CopyOnReadDirectory.<init>(IndexCopier.java:324)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier.wrapForRead(IndexCopier.java:140)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode.open(IndexNode.java:53)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexTracker.findIndexNode(IndexTracker.java:179)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexTracker.acquireIndexNode(IndexTracker.java:154)

        at org.apache.jackrabbit.oak.plugins.index.lucene.LucenePropertyIndex.getPlans(LucenePropertyIndex.java:243)

        at org.apache.jackrabbit.oak.query.QueryImpl.getBestSelectorExecutionPlan(QueryImpl.java:1016)

        at org.apache.jackrabbit.oak.query.QueryImpl.getBestSelectorExecutionPlan(QueryImpl.java:949)

        at org.apache.jackrabbit.oak.query.ast.SelectorImpl.prepare(SelectorImpl.java:288)

        at org.apache.jackrabbit.oak.query.QueryImpl.prepare(QueryImpl.java:631)

        at org.apache.jackrabbit.oak.query.QueryEngineImpl.prepareAndSelect(QueryEngineImpl.java:298)

        at org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:273)

        at org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:233)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:314)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:308)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:304)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.getTree(IdentifierManager.java:133)

        at org.apache.jackrabbit.oak.security.user.AuthorizableBaseProvider.getByContentID(AuthorizableBaseProvider.java:56)

        at org.apache.jackrabbit.oak.security.user.AuthorizableBaseProvider.getByID(AuthorizableBaseProvider.java:51)

        at org.apache.jackrabbit.oak.security.user.UserProvider.getAuthorizable(UserProvider.java:211)

        at org.apache.jackrabbit.oak.security.user.UserManagerImpl.getAuthorizable(UserManagerImpl.java:110)

        at org.apache.jackrabbit.oak.jcr.delegate.UserManagerDelegator$1.performNullable(UserManagerDelegator.java:64)

        at org.apache.jackrabbit.oak.jcr.delegate.UserManagerDelegator$1.performNullable(UserManagerDelegator.java:61)

        at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.performNullable(SessionDelegate.java:243)

        at org.apache.jackrabbit.oak.jcr.delegate.UserManagerDelegator.getAuthorizable(UserManagerDelegator.java:61)

        at org.apache.sling.jcr.resource.internal.JcrSystemUserValidator.isValid(JcrSystemUserValidator.java:114)

        at org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl.isValidUser(ServiceUserMapperImpl.java:379)

        at org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl.getServiceUserID(ServiceUserMapperImpl.java:196)

        at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getServiceResourceResolver(ResourceResolverFactoryImpl.java:82)

        at com.day.cq.wcm.core.impl.devicedetection.DeviceIdentificationModeImpl$2.run(DeviceIdentificationModeImpl.java:245)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

        at java.lang.Thread.run(Thread.java:722)

07.03.2018 13:11:59.703 *INFO * [main] Startup completed

After startup completed,i try to open Welcome page(http://backupserver:4502/welcome) in all browsers(IE/Firefox/Chrome)after wait 2 minutes, got following error infomation. meanwhile, CPU works in high usage rate!

HTTP ERROR: 500

Problem accessing /libs/granite/core/content/login.html. Reason:

    java.lang.StackOverflowError

Powered by Jetty://

And so much error output(circularly) in file error.log:

07.03.2018 14:20:36.154 *INFO* [qtp859942854-181] org.apache.sling.auth.core.impl.SlingAuthenticator handleLoginFailure: Unable to authenticate anonymous user: java.lang.IllegalStateException: Attempt to read external blob with blobId [82f7921e11be8b37162750055df323760eaaa4f2#29624] without specifying BlobStore

        at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.readBlob(FileStore.java:1337)

        at org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.getBlob(SegmentBlob.java:261)

        at org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.getLength(SegmentBlob.java:269)

        at org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.length(SegmentBlob.java:109)

        at org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectory$OakIndexFile.<init>(OakDirectory.java:330)

        at org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectory$OakIndexInput.<init>(OakDirectory.java:507)

        at org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectory.fileLength(OakDirectory.java:144)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier$CopyOnReadDirectory.copyFilesToLocal(IndexCopier.java:457)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier$CopyOnReadDirectory.prefetchIndexFiles(IndexCopier.java:413)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier$CopyOnReadDirectory.<init>(IndexCopier.java:324)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier.wrapForRead(IndexCopier.java:140)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode.open(IndexNode.java:53)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexTracker.findIndexNode(IndexTracker.java:179)

        at org.apache.jackrabbit.oak.plugins.index.lucene.IndexTracker.acquireIndexNode(IndexTracker.java:154)

        at org.apache.jackrabbit.oak.plugins.index.lucene.LucenePropertyIndex.getPlans(LucenePropertyIndex.java:243)

        at org.apache.jackrabbit.oak.query.QueryImpl.getBestSelectorExecutionPlan(QueryImpl.java:1016)

        at org.apache.jackrabbit.oak.query.QueryImpl.getBestSelectorExecutionPlan(QueryImpl.java:949)

        at org.apache.jackrabbit.oak.query.ast.SelectorImpl.prepare(SelectorImpl.java:288)

        at org.apache.jackrabbit.oak.query.QueryImpl.prepare(QueryImpl.java:631)

        at org.apache.jackrabbit.oak.query.QueryEngineImpl.prepareAndSelect(QueryEngineImpl.java:298)

        at org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:273)

        at org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:233)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:314)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:308)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:304)

        at org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.getTree(IdentifierManager.java:133)

        at org.apache.jackrabbit.oak.security.user.AuthorizableBaseProvider.getByContentID(AuthorizableBaseProvider.java:56)

        at org.apache.jackrabbit.oak.security.user.AuthorizableBaseProvider.getByID(AuthorizableBaseProvider.java:51)

        at org.apache.jackrabbit.oak.security.user.UserProvider.getAuthorizable(UserProvider.java:211)

        at org.apache.jackrabbit.oak.security.user.UserManagerImpl.getAuthorizable(UserManagerImpl.java:110)

        at org.apache.jackrabbit.oak.security.user.UserAuthentication.authenticate(UserAuthentication.java:100)

        at org.apache.jackrabbit.oak.security.authentication.user.LoginModuleImpl.login(LoginModuleImpl.java:131)

        at org.apache.felix.jaas.boot.ProxyLoginModule.login(ProxyLoginModule.java:52)

        at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:601)

        at javax.security.auth.login.LoginContext.invoke(LoginContext.java:784)

        at javax.security.auth.login.LoginContext.access$000(LoginContext.java:203)

        at javax.security.auth.login.LoginContext$5.run(LoginContext.java:721)

        at javax.security.auth.login.LoginContext$5.run(LoginContext.java:719)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.login.LoginContext.invokeCreatorPriv(LoginContext.java:718)

        at javax.security.auth.login.LoginContext.login(LoginContext.java:590)

        at org.apache.jackrabbit.oak.core.ContentRepositoryImpl.login(ContentRepositoryImpl.java:165)

        at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl.login(RepositoryImpl.java:280)

        at com.adobe.granite.repository.impl.CRX3RepositoryImpl.login(CRX3RepositoryImpl.java:94)

        at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl.login(RepositoryImpl.java:219)

        at org.apache.sling.jcr.base.AbstractSlingRepository2.login(AbstractSlingRepository2.java:288)

        at org.apache.sling.jcr.resource.internal.helper.jcr.JcrProviderStateFactory.createProviderState(JcrProviderStateFactory.java:121)

        at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.authenticate(JcrResourceProvider.java:267)

        at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.authenticate(JcrResourceProvider.java:78)

        at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticate(ProviderManager.java:161)

        at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.getOrCreateProvider(ProviderManager.java:87)

        at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticateAll(ProviderManager.java:129)

        at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.createControl(ResourceResolverImpl.java:154)

        at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.<init>(ResourceResolverImpl.java:116)

        at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.<init>(ResourceResolverImpl.java:110)

        at org.apache.sling.resourceresolver.impl.CommonResourceResolverFactoryImpl.getResourceResolverInternal(CommonResourceResolverFactoryImpl.java:258)

        at org.apache.sling.resourceresolver.impl.CommonResourceResolverFactoryImpl.getResourceResolver(CommonResourceResolverFactoryImpl.java:163)

        at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getResourceResolver(ResourceResolverFactoryImpl.java:101)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.getAnonymousResolver(SlingAuthenticator.java:861)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.handleLoginFailure(SlingAuthenticator.java:964)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.getAnonymousResolver(SlingAuthenticator.java:883)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.handleLoginFailure(SlingAuthenticator.java:964)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.getAnonymousResolver(SlingAuthenticator.java:883)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.handleLoginFailure(SlingAuthenticator.java:964)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.getAnonymousResolver(SlingAuthenticator.java:883)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.handleLoginFailure(SlingAuthenticator.java:964)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.getAnonymousResolver(SlingAuthenticator.java:883)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.handleLoginFailure(SlingAuthenticator.java:964)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.getAnonymousResolver(SlingAuthenticator.java:883)

        at org.apache.sling.auth.core.impl.SlingAuthenticator.handleLoginFailure(SlingAuthenticator.java:964)

... ...

... ...

Any good guys can help to see if it's a AEM Onlinebackup functional bug or is my operational issue?

Many thanks!!