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https://issues.apache.org/jira/browse/SOLR-11164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125457#comment-16125457
]
Yuki Yano commented on SOLR-11164:
----------------------------------
With new patch, the reported case of
[SOLR-11180|https://issues.apache.org/jira/browse/SOLR-11180] seems to work
fine.
without re-ranking :
{{http://localhost:8983/solr/gettingstarted/query?q=test&fl=id,score,%5Bfeatures%5D}}
{code}
{
"responseHeader":{
"zkConnected":true,
"status":0,
"QTime":10,
"params":{
"q":"test",
"fl":"id,score,[features]"}},
"response":{"numFound":2,"start":0,"maxScore":1.7527907,"docs":[
{
"id":"GB18030TEST",
"[features]":"originalScore=1.7527907",
"score":1.7527907},
{
"id":"UTF8TEST",
"[features]":"originalScore=1.5209608",
"score":1.5209608}]
}}
{code}
with re-ranking :
{{http://localhost:8983/solr/gettingstarted/query?q=test&rq={!ltr%20model=model%20reRankDocs=100}&fl=id,score,[features]}}
{code}
{
"responseHeader":{
"zkConnected":true,
"status":0,
"QTime":12,
"params":{
"q":"test",
"fl":"id,score,[features]",
"rq":"{!ltr model=model reRankDocs=100}"}},
"response":{"numFound":2,"start":0,"maxScore":0.87639534,"docs":[
{
"id":"GB18030TEST",
"[features]":"originalScore=1.7527907",
"score":0.87639534},
{
"id":"UTF8TEST",
"[features]":"originalScore=1.5209608",
"score":0.7604804}]
}}
{code}
> 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
> Attachments: 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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