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https://issues.apache.org/jira/browse/OAK-9929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17603074#comment-17603074
 ] 

Thomas Mueller commented on OAK-9929:
-------------------------------------

[~reschke] I recommend to reconfigure the system to use an index of type 
"lucene".

http://oakutils.appspot.com/generate/index uses an older version of Oak, and 
doesn't support "first" and "option length", but the index would look something 
like this:
{noformat}
 - compatVersion = 2
  - async = "async"
  - jcr:primaryType = oak:QueryIndexDefinition
  - type = "lucene"
  + indexRules 
   + nt:base 
    + properties 
     + path 
      - name = "jcr:path"
      - ordered = true
     + vanityPath_1 
      - name = "function*first*@sling:vanityPath"
      - ordered = true
      - type = "Long"
     + vanityPath 
      - name = "sling:vanityPath"
      - propertyIndex = true
      - notNullCheckEnabled = true
{noformat}

Changing an existing index is an option.


> OPTION (LIMIT ...) doesn't prevent RuntimeNodeTraversalException
> ----------------------------------------------------------------
>
>                 Key: OAK-9929
>                 URL: https://issues.apache.org/jira/browse/OAK-9929
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: search
>    Affects Versions: 1.44.0
>            Reporter: Julian Reschke
>            Priority: Major
>
> It appears that the concept of paging doesn't help when the result of the 
> unpaged query exceeds the query limit.
> With >100K vanity paths and this query:
> {noformat}
> SELECT [sling:vanityPath], [sling:redirect], [sling:redirectStatus] 
> FROM [nt:base] WHERE NOT isdescendantnode('/jcr:system') 
> AND [sling:vanityPath] IS NOT NULL 
> ORDER BY FIRST([sling:vanityPath]), [jcr:path] OPTION (LIMIT 1000)
> {noformat}
> I get the following exeption:
> {noformat}08.09.2022 14:19:38.945 *ERROR* [FelixDispatchQueue] 
> org.apache.sling.resourceresolver.impl.CommonResourceResolverFactoryImpl 
> activate: Cannot access repository, failed setting up Mapping Support
> org.apache.jackrabbit.oak.query.RuntimeNodeTraversalException: The query read 
> or traversed more than 100000 nodes. To avoid affecting other tasks, 
> processing was stopped.
>         at 
> org.apache.jackrabbit.oak.query.FilterIterators.checkReadLimit(FilterIterators.java:70)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy$PathIterator.fetchNextPossiblyDuplicate(ContentMirrorStoreStrategy.java:459)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy$PathIterator.fetchNext(ContentMirrorStoreStrategy.java:402)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy$PathIterator.next(ContentMirrorStoreStrategy.java:488)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy$PathIterator.next(ContentMirrorStoreStrategy.java:338)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at com.google.common.collect.Iterators$5.next(Iterators.java:553) 
> [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
>  [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
>  [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.Iterators$7.computeNext(Iterators.java:646) 
> [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
>  [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) 
> [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.TransformedIterator.hasNext(TransformedIterator.java:43)
>  [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at com.google.common.collect.Iterators$5.hasNext(Iterators.java:542) 
> [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> org.apache.jackrabbit.oak.plugins.index.search.spi.query.FulltextIndex$FulltextPathCursor$1.hasNext(FulltextIndex.java:419)
>  [org.apache.jackrabbit.oak-lucene:1.44.0.T20220901123248-ccd9028]
>         at 
> com.google.common.collect.Iterators$7.computeNext(Iterators.java:645) 
> [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
>  [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) 
> [com.adobe.granite.osgi.wrapper.guava:15.0.0.0002]
>         at 
> org.apache.jackrabbit.oak.plugins.index.cursor.PathCursor.hasNext(PathCursor.java:70)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.plugins.index.search.spi.query.FulltextIndex$FulltextPathCursor.hasNext(FulltextIndex.java:452)
>  [org.apache.jackrabbit.oak-lucene:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.ast.SelectorImpl.nextInternal(SelectorImpl.java:529)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.ast.SelectorImpl.next(SelectorImpl.java:522) 
> [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.QueryImpl$RowIterator.fetchNext(QueryImpl.java:933)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.QueryImpl$RowIterator.hasNext(QueryImpl.java:960)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.FilterIterators$SortIterator.init(FilterIterators.java:207)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.FilterIterators$SortIterator.hasNext(FilterIterators.java:241)
>  [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.QueryImpl.getRows(QueryImpl.java:631) 
> [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.query.ResultImpl$1.iterator(ResultImpl.java:72) 
> [org.apache.jackrabbit.oak-core:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.jcr.query.QueryResultImpl$4.<init>(QueryResultImpl.java:177)
>  [org.apache.jackrabbit.oak-jcr:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.jackrabbit.oak.jcr.query.QueryResultImpl.getNodes(QueryResultImpl.java:174)
>  [org.apache.jackrabbit.oak-jcr:1.44.0.T20220901123248-ccd9028]
>         at 
> org.apache.sling.jcr.resource.internal.helper.jcr.BasicQueryLanguageProvider.findResources(BasicQueryLanguageProvider.java:83)
>  [org.apache.sling.jcr.resource:3.2.0]
>         at 
> org.apache.sling.resourceresolver.impl.providers.stateful.AuthenticatedResourceProvider.findResources(AuthenticatedResourceProvider.java:285)
>  [org.apache.sling.resourceresolver:1.10.1.SNAPSHOT]
>         at 
> org.apache.sling.resourceresolver.impl.helper.ResourceResolverControl.findResources(ResourceResolverControl.java:574)
>  [org.apache.sling.resourceresolver:1.10.1.SNAPSHOT]
>         at 
> org.apache.sling.resourceresolver.impl.ResourceResolverImpl.findResources(ResourceResolverImpl.java:574)
>  [org.apache.sling.resourceresolver:1.10.1.SNAPSHOT]
>         at 
> org.apache.sling.resourceresolver.impl.mapping.MapEntries.queryAllVanityPaths(MapEntries.java:1282)
>  [org.apache.sling.resourceresolver:1.10.1.SNAPSHOT]
> {noformat}
> That is, the querying code doesn't even get a query result it could iterate 
> on.
> (Please let me know if more information is needed to reproduce)



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