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bfvaughn
Level 3
May 6, 2016 8:47 PM UTC

Oak - No indexes were used.

Hello,  I'm working with a long running query.  I've used the Query Explanation feature in AEM 6.1 to review my query.  It is not hitting my index.  Any help would be appreciated.

 

 

Query:

[nt:base] as [parent] /* traverse "/content/dam/mw/videos//*" where (isdescendantnode([parent], [/content/dam/mw/videos])) and ([parent].[primaryProduct] = 'product:AT') and ([parent].[asset_language] = 'asset-language:en') */

 

Index A:

<mwRelatedVideos jcr:primaryType="oak:QueryIndexDefinition" propertyNames="[primaryProduct,asset_language]" reindex="{Boolean}false" reindexCount="{Long}5" type="property"/>

Index B:

<mwRelatedVideosIndex jcr:primaryType="oak:QueryIndexDefinition" async="async" compatVersion="{Long}2" reindex="{Boolean}false" reindexCount="{Long}6" type="lucene"> <aggregates jcr:primaryType="nt:unstructured"> <dam:Asset jcr:primaryType="nt:unstructured"> <include0 jcr:primaryType="nt:unstructured" path="jcr:content/metadata/mw/*"/> </dam:Asset> </aggregates> <indexRules jcr:primaryType="nt:unstructured"> <nt:base jcr:primaryType="nt:unstructured"> <properties jcr:primaryType="nt:unstructured"> <primaryProduct jcr:primaryType="nt:unstructured" name="primaryProduct" propertyType="{Boolean}true"/> <asset_language jcr:primaryType="nt:unstructured" name="asset_language" propertyType="{Boolean}true"/> </properties> </nt:base> </indexRules> </mwRelatedVideosIndex>
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3 replies

smacdonald2008
smacdonald2008
Level 10
May 6, 2016 9:08 PM UTC

Looks like something was not configured properly so that the OAK index was used Wathc this GEMS session on OAK index where they cover how to configure it: 

http://dev.day.com/content/ddc/en/gems/oak-lucene-indexes.html

Hope this helps. 

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Lokesh_Shivalingaiah
Lokesh_Shivalingaiah
Level 10
May 9, 2016 8:28 AM UTC

Also refer some of the docs [1] [2] to understand about indexes and its configuration

[1] https://docs.adobe.com/docs/en/aem/6-0/deploy/upgrade/queries-and-indexing.html

[2] http://jackrabbit.apache.org/oak/docs/query/lucene.html

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bfvaughnAuthor
Level 3
May 9, 2016 3:11 PM UTC

So this has helped a lot but I'm still not seeing the index get used.  Looks like the execution plan is using the index.

Indexes Used

No indexes were used.

Execution Plan

[dam:Asset] as [p] /* lucene:mwRelatedVideosIndex(/oak:index/mwRelatedVideosIndex) :ancestors:/content/dam/mw/videos where (isdescendantnode([p], [/content/dam/mw/videos])) and ([p].[jcr:content/metadata/mw/primaryProduct] = 'product:EC') and ([p].[jcr:content/metadata/mw/asset_language] = 'asset-language:de') */
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