Content Replication Queue Blocked Detected- | Community
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AshishRa17
Level 2
March 12, 2025
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Content Replication Queue Blocked Detected-

  • March 12, 2025
  • 3 replies
  • 789 views

We have a big team of content authors and one of them was trying to publish and we got an alert saying - Blocked Replication Queue, which i already cleared and copied the logs for investigation. Can anyone please help to guide, if anything is wrong or the authors are publishing in a wrong manner?

 

2025/03/12 13:57:07:544 - INFO - Successfully applied package with id dstrpck-1741787823269-91c4fd10-6d60-45de-a58b-67d282f22df1, type ADD, paths [/content/kpmg/us/en/webcasts/2025/ask-the-experts, /content/dam/kpmg/event-hero/2025/ask-the-experts-2000x1125.jpg]
2025/03/12 14:07:34:120 - INFO - Request accepted with distribution package PackageMessage(pubSlingId=f1f2ea2c-c9f7-4757-b555-a51323af536b, reqType=ADD, pkgId=dstrpck-1741788454042-08512221-7f2c-4f12-ac0f-f14a5e2d0c01, pkgType=journal_filevault, pkgLength=52176, pubAgentName=preview, userId=replication-service, paths=[/content/kpmg/us/en/articles/2024/strategic-workforce-planning-in-the-age-of-genai], deepPaths=[], metadata={}) at offset=72840959, queueSize=1, queueSizeDelay=0
2025/03/12 14:07:37:879 - WARN - Message: Failed attempt (0/infinite) to import the distribution package PackageMessage(pubSlingId=f1f2ea2c-c9f7-4757-b555-a51323af536b, reqType=ADD, pkgId=dstrpck-1741788454042-08512221-7f2c-4f12-ac0f-f14a5e2d0c01, pkgType=journal_filevault, pkgLength=52176, pubAgentName=preview, userId=replication-service, paths=[/content/kpmg/us/en/articles/2024/strategic-workforce-planning-in-the-age-of-genai], deepPaths=[], metadata={}) at offset=72840959 because of 'javax.jcr.nodetype.ConstraintViolationException: OakConstraint0026: /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file[[nt:file]]: Mandatory child node jcr:content can not be removed', the importer will retry later,
Stacktrace: org.apache.sling.distribution.common.DistributionException: javax.jcr.nodetype.ConstraintViolationException: OakConstraint0026: /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file[[nt:file]]: Mandatory child node jcr:content can not be removed
at org.apache.sling.distribution.serialization.impl.vlt.FileVaultContentSerializer.importFromStream(FileVaultContentSerializer.java:159)
at org.apache.sling.distribution.packaging.impl.InMemoryDistributionPackageBuilder.installPackageInternal(InMemoryDistributionPackageBuilder.java:119)
at org.apache.sling.distribution.packaging.impl.AbstractDistributionPackageBuilder.installPackage(AbstractDistributionPackageBuilder.java:156)
at org.apache.sling.distribution.monitor.impl.MonitoringDistributionPackageBuilder.installPackage(MonitoringDistributionPackageBuilder.java:92)
at org.apache.sling.distribution.serialization.impl.vlt.VaultDistributionPackageBuilderFactory.installPackage(VaultDistributionPackageBuilderFactory.java:317)
at org.apache.sling.distribution.journal.bookkeeper.PackageHandler.installAddPackage(PackageHandler.java:78)
at org.apache.sling.distribution.journal.bookkeeper.PackageHandler.apply(PackageHandler.java:61)
at org.apache.sling.distribution.journal.bookkeeper.BookKeeper.importPackage(BookKeeper.java:164)
at org.apache.sling.distribution.journal.impl.subscriber.DistributionSubscriber.processQueueItem(DistributionSubscriber.java:397)
at org.apache.sling.distribution.journal.impl.subscriber.DistributionSubscriber.fetchAndProcessQueueItem(DistributionSubscriber.java:348)
at org.apache.sling.distribution.journal.impl.subscriber.DistributionSubscriber.processQueue(DistributionSubscriber.java:324)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: javax.jcr.nodetype.ConstraintViolationException: OakConstraint0026: /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file[[nt:file]]: Mandatory child node jcr:content can not be removed
at org.apache.jackrabbit.oak.api.CommitFailedException.asRepositoryException(CommitFailedException.java:226)
at org.apache.jackrabbit.oak.api.CommitFailedException.asRepositoryException(CommitFailedException.java:213)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.newRepositoryException(SessionDelegate.java:738)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.save(SessionDelegate.java:552)
at org.apache.jackrabbit.oak.jcr.session.SessionImpl$9.performVoid(SessionImpl.java:459)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.performVoid(SessionDelegate.java:300)
at org.apache.jackrabbit.oak.jcr.session.SessionImpl.save(SessionImpl.java:456)
at com.adobe.granite.repository.impl.CRX3SessionImpl.save(CRX3SessionImpl.java:220)
at org.apache.jackrabbit.vault.fs.io.AutoSave.saveWithBackoff(AutoSave.java:204)
at org.apache.jackrabbit.vault.fs.io.AutoSave.save(AutoSave.java:176)
at org.apache.jackrabbit.vault.fs.io.Importer.run(Importer.java:532)
at org.apache.sling.distribution.serialization.impl.vlt.FileVaultContentSerializer.importFromStream(FileVaultContentSerializer.java:151)
... 11 more
Caused by: org.apache.jackrabbit.oak.api.CommitFailedException: OakConstraint0026: /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file[[nt:file]]: Mandatory child node jcr:content can not be removed
at org.apache.jackrabbit.oak.plugins.nodetype.TypeEditor$1.onConstraintViolation(TypeEditor.java:110)
at org.apache.jackrabbit.oak.plugins.nodetype.TypeEditor.constraintViolation(TypeEditor.java:235)
at org.apache.jackrabbit.oak.plugins.nodetype.TypeEditor.childNodeDeleted(TypeEditor.java:323)
at org.apache.jackrabbit.oak.spi.commit.VisibleEditor.childNodeDeleted(VisibleEditor.java:110)
at org.apache.jackrabbit.oak.spi.commit.CompositeEditor.childNodeDeleted(CompositeEditor.java:135)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:165)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:581)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:597)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:444)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:597)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:444)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:444)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord$3.childNodeChanged(MapRecord.java:430)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:517)
at org.apache.jackrabbit.oak.segment.MapRecord.compareBranch(MapRecord.java:595)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:496)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:420)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:444)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:444)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:444)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:147)
at org.apache.jackrabbit.oak.composite.CompositeNodeState$WrappingDiff.childNodeChanged(CompositeNodeState.java:309)
at org.apache.jackrabbit.oak.composite.CompositeNodeState$ChildrenDiffFilter.childNodeChanged(CompositeNodeState.java:256)
at org.apache.jackrabbit.oak.segment.MapRecord$4.childNodeChanged(MapRecord.java:471)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:517)
at org.apache.jackrabbit.oak.segment.MapRecord.compare(MapRecord.java:462)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:650)
at org.apache.jackrabbit.oak.composite.CompositeNodeState.compareAgainstBaseState(CompositeNodeState.java:163)
at org.apache.jackrabbit.oak.spi.commit.EditorDiff.process(EditorDiff.java:51)
at org.apache.jackrabbit.oak.spi.commit.EditorHook.processCommit(EditorHook.java:54)
at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:60)
at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:60)
at org.apache.jackrabbit.oak.composite.CommitHookEnhancer.processCommit(CommitHookEnhancer.java:55)
at org.apache.jackrabbit.oak.segment.scheduler.Commit.apply(Commit.java:99)
at org.apache.jackrabbit.oak.segment.scheduler.LockBasedScheduler.execute(LockBasedScheduler.java:299)
at org.apache.jackrabbit.oak.segment.scheduler.LockBasedScheduler.schedule(LockBasedScheduler.java:270)
at org.apache.jackrabbit.oak.segment.SegmentNodeStore.merge(SegmentNodeStore.java:212)
at org.apache.jackrabbit.oak.composite.CompositeNodeStore.merge(CompositeNodeStore.java:150)
at org.apache.jackrabbit.oak.core.MutableRoot.commit(MutableRoot.java:261)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.commit(SessionDelegate.java:395)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.save(SessionDelegate.java:550)
... 19 more

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Best answer by DPrakashRaj

Log suggest that this file has a problem.

content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file

From log 

org.apache.jackrabbit.oak.api.CommitFailedException: OakConstraint0026: /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file[[nt:file]]: Mandatory child node jcr:content can not be removed
at org.apache.jackrabbit.oak.plugins.nodetype.TypeEditor$1.onConstraintViolation(TypeEditor.java:110)

 

suggestion: when posting logs on this forum try to mask the sitename directly for more security and my be to comply with your office IT policy

3 replies

DPrakashRaj
Community Advisor
DPrakashRajCommunity AdvisorAccepted solution
Community Advisor
March 12, 2025

Log suggest that this file has a problem.

content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file

From log 

org.apache.jackrabbit.oak.api.CommitFailedException: OakConstraint0026: /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file[[nt:file]]: Mandatory child node jcr:content can not be removed
at org.apache.jackrabbit.oak.plugins.nodetype.TypeEditor$1.onConstraintViolation(TypeEditor.java:110)

 

suggestion: when posting logs on this forum try to mask the sitename directly for more security and my be to comply with your office IT policy

    giuseppebaglio
    giuseppebaglio
    Level 10
    March 14, 2025

    The error occurs because the mandatory jcr:content node is missing or removed from the nt:file node under the specified path. Here’s a quick attempt to fix:

    1. Verify the node structure in CRXDE Lite and ensure the jcr:content node exists under the file node.
    2. If missing, recreate the jcr:content node with the required properties (jcr:mimeType, jcr:lastModified, etc.).
    3. Investigate scripts or processes that might be removing the node to prevent future issues.

    If needed, use AEM logs or audit trails to identify the root cause.

      AmitVishwakarma
      Community Advisor
      AmitVishwakarmaCommunity Advisor
      Community Advisor
      March 15, 2025

      Hi @ashishra17 ,

      It looks like the replication failure happened due to a missing jcr:content node under an nt:file node. This mandatory node must exist, and any attempt to remove or modify it incorrectly causes a ConstraintViolationException.


      Steps to Fix:

      1. Check Node Structure in CRXDE Lite:

           - Navigate to /content/kpmg/us/en/wireframe-designs/chitvan-wireframing-space/strategic-workforce-planning-in-the-age-of-genai/jcr:content/image/file
           - Ensure that the jcr:content node exists under the file node.

      2. Recreate the jcr:content Node (If Missing):

           - Add a jcr:content node under the file node.
           - Set the required properties:

                - jcr:mimeType
                - jcr:lastModified
           - Any other required metadata.

      3. Check for Any Custom Code or Workflows:

           - Identify scripts or workflows that might be incorrectly deleting or modifying this node.
           - Review the replication logs and audit logs to see when this node was removed or modified.


      4. Retry Replication After Fixing:

           - After restoring the correct structure, clear the replication queue again and attempt to republish the content.

      Regards,
      Amit Vishwakarma

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