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https://issues.apache.org/jira/browse/SOLR-272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan McKinley updated SOLR-272:
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Attachment: SolrInputDoc.patch
This is an alternative version of SolrDocument that only creates Collections
for mulitvalued fields... The one big difference to Yoniks suggestion above is
that it returns a Collection<Object> for getFieldValues() even if it is a
single valued field.
Running the perf test for 1M docs 5 times for each implementation:
[1000000] SolrInputDocument: 9992 9827 9823 9854 9948
[1000000] SolrInputDocument2: 9636 9719 9699 9807 9729
[1000000] DocumentBuilder: 8866 8818 8946 8812 8953
To be honest, I'm not sure the complexity of dealing with a Map<String,Object>
(where the Object may be a collection or not) is worth the marginal speedup. I
suppose if the docs are all single valued it would be a more substantial
difference.
> SolrDocument performance testing
> --------------------------------
>
> Key: SOLR-272
> URL: https://issues.apache.org/jira/browse/SOLR-272
> Project: Solr
> Issue Type: Test
> Affects Versions: 1.3
> Reporter: Ryan McKinley
> Attachments: SOLR-272-SolrDocumentPerformanceTesting.patch,
> SOLR-272-SolrDocumentPerformanceTesting.patch,
> SolrDocumentPerformanceTester.java, SolrDocumentPerformanceTester.java,
> SolrInputDoc.patch, SolrInputDoc.patch
>
>
> In 1.3, we added SolrInputDocument -- a temporary class to hold document
> information. There is concern that this may be less then ideal
> performance-wise.
> To settle some concerns (mine included) I want to compare a few SolrDocument
> implementations to make sure we are not doing something crazy.
> I implemented a LuceneInputDocument subclass of SolrInputDocument that stores
> its values directly in Lucene Document (rather then a Map<String,Collection>).
> This is a quick test comparing:
> 1. Building documents with SolrInputDocument
> 2. Building documents with LuceneInputDocument (same interface writing
> directly to Document)
> 3. using DocumentBuilder (solr 1.2, solr 1.1)
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