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Posted to dev@lucene.apache.org by "Christine Poerschke (JIRA)" <ji...@apache.org> on 2017/08/24 10:35:00 UTC
[jira] [Assigned] (SOLR-11164) OriginalScoreFeature causes
NullPointerException during feature logging with SolrCloud mode.
[ https://issues.apache.org/jira/browse/SOLR-11164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christine Poerschke reassigned SOLR-11164:
------------------------------------------
Assignee: Christine Poerschke
> OriginalScoreFeature causes NullPointerException during feature logging with SolrCloud mode.
> --------------------------------------------------------------------------------------------
>
> Key: SOLR-11164
> URL: https://issues.apache.org/jira/browse/SOLR-11164
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LTR
> Affects Versions: 6.6
> Reporter: Yuki Yano
> Assignee: Christine Poerschke
> Attachments: SOLR-11164_master.patch, SOLR-11164.patch, SOLR-11164.patch
>
>
> In FeatureTransfer, OriginalScoreFeature uses original Query instance preserved in LTRScoringQuery for the evaluation.
> This query is set in RankQuery#wrap during QueryComponent#process.
> With SolrCloud mode, document searches take two steps: finding top-N document ids, and filling documents of found ids.
> In this case, FeatureTransformer works in the second step and tries to extract features with LTRScoringQuery built in QueryComponent#prepare.
> However, because the second step doesn't call QueryComponent#process, the original query of LTRScoringQuery remains null and this causes NullPointerException while evaluating OriginalScoreFeature.
> We can get the original query from ResultContext which is an argument of DocTransformer#setContext, thus this problem can solve by using it if LTRScoringQuery doesn't have correct original query.
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