Nexus 3.9.0: BrowseNodeEntityAdapter$RetryUpsertException: Node already has an asset

[7Books]

Hi,

since I'm using Nexus 3.9.0 I have plenty warnings in the log which look like this one but are related to various different maven-metadata.xml:

2018-04-10 15:39:21,663+0200 WARN  [event-10-thread-453397]  anonymous org.sonatype.nexus.repository.browse.internal.BrowseNodeManager - Problem generating browse nodes for Asset{metadata=AttachedEntityMetadata{schema=asset, document=#11:103030010{bucket:#9:66,format:maven2,last_updated:Tue Apr 10 15:39:19 CEST 2018,attributes:[5],component:null,name:org/codehaus/mojo/maven-metadata.xml,size:20447,content_type:application/xml,created_by:anonymous,created_by_ip:10.233.17.123,blob_ref:orbis-groups@616CB638-51579A2A-47959392-B47F6818-4BCF3D04:74358cf4-c0a4-49f7-9e22-e945f47fc321,last_downloaded:Tue Apr 10 15:39:19 CEST 2018,blob_created:Tue Apr 10 15:39:19 CEST 2018,blob_updated:Tue Apr 10 15:39:19 CEST 2018} v1}, name=org/codehaus/mojo/maven-metadata.xml}
org.sonatype.nexus.repository.storage.BrowseNodeEntityAdapter$RetryUpsertException: Node already has an asset
    DB name="component"
    at org.sonatype.nexus.repository.storage.BrowseNodeEntityAdapter.createAssetNode(BrowseNodeEntityAdapter.java:266)
    at org.sonatype.nexus.repository.storage.BrowseNodeStoreImpl.lambda$1(BrowseNodeStoreImpl.java:132)
    at org.sonatype.nexus.orient.transaction.OrientOperations.lambda$2(OrientOperations.java:63)
    at org.sonatype.nexus.transaction.OperationPoint.lambda$0(OperationPoint.java:53)
    at org.sonatype.nexus.transaction.OperationPoint.proceed(OperationPoint.java:64)
    at org.sonatype.nexus.transaction.TransactionalWrapper.proceedWithTransaction(TransactionalWrapper.java:56)
    at org.sonatype.nexus.transaction.Operations.transactional(Operations.java:200)
    at org.sonatype.nexus.transaction.Operations.run(Operations.java:155)
    at org.sonatype.nexus.orient.transaction.OrientOperations.run(OrientOperations.java:63)
    at org.sonatype.nexus.repository.storage.BrowseNodeStoreImpl.createAssetNode(BrowseNodeStoreImpl.java:132)
    at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)
    at org.sonatype.nexus.common.stateguard.StateGuard$GuardImpl.run(StateGuard.java:270)
    at org.sonatype.nexus.common.stateguard.GuardedInterceptor.invoke(GuardedInterceptor.java:53)
    at org.sonatype.nexus.repository.browse.internal.BrowseNodeManager.createBrowseNodes(BrowseNodeManager.java:106)
    at org.sonatype.nexus.repository.browse.internal.BrowseNodeManager.createFromAsset(BrowseNodeManager.java:77)
    at org.sonatype.nexus.repository.browse.internal.BrowseNodeEventHandler.on(BrowseNodeEventHandler.java:58)
    at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at org.sonatype.nexus.thread.internal.MDCAwareRunnable.run(MDCAwareRunnable.java:40)
    at org.apache.shiro.subject.support.SubjectRunnable.doRun(SubjectRunnable.java:120)
    at org.apache.shiro.subject.support.SubjectRunnable.run(SubjectRunnable.java:108)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

My question is: Can this warnings be ignored (i.e. I would change the Log Level in this case) or do I need to take further action in order to resolve the problem with the maven-metadata.xml files or is it related to some bug in N3?

Thanks for any further info.

[Rok Prodan]

Hello,

I am observing the same kind of warnings from time to time on NXRM instance 3.7.1

Regards, Rok Prodan

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[mma...@sonatype.com]

Feel free to ignore these warnings. They are related to how the new tree browsing structure is created in parallel and when they occur the other thread which conflicted should generate the correct data. We haven't seen any actual problems with the final tree structure since we released 3.7.1. If for some reason you do see any problems please open a JIRA ticket so we can investigate.

Thanks,

Michael Martz

Sr Software Engineer

[Peter Lynch]

These WARN messages are being tracked here: https://issues.sonatype.org/browse/NEXUS-15557

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