The experimental highlighter fails with common terms query
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	dcausse
	Sep 16 2015, 12:44 PM

Description

The hightlighter seems to have specific code to handle CommonTermsQuery but it does not work:

org.elasticsearch.search.fetch.FetchPhaseExecutionException: [cirrustestwiki_content_1438190225][0]: query[filtered(((all.plain:prefix | all:prefix^0.5) all_near_match:prefix)~1)->cache(_type:page)],from[0],size[20]: Fetch Failed [Failed to highlight field [title]]
	at org.elasticsearch.search.highlight.ExperimentalHighlighter.highlight(ExperimentalHighlighter.java:92)
	at org.elasticsearch.search.highlight.HighlightPhase.hitExecute(HighlightPhase.java:133)
	at org.elasticsearch.search.fetch.FetchPhase.execute(FetchPhase.java:194)
	at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:516)
	at org.elasticsearch.search.action.SearchServiceTransportAction$17.call(SearchServiceTransportAction.java:452)
	at org.elasticsearch.search.action.SearchServiceTransportAction$17.call(SearchServiceTransportAction.java:449)
	at org.elasticsearch.search.action.SearchServiceTransportAction$23.run(SearchServiceTransportAction.java:559)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassCastException: org.apache.lucene.search.TermQuery cannot be cast to org.apache.lucene.search.BooleanQuery
	at org.wikimedia.highlighter.experimental.lucene.QueryFlattener.flattenQuery(QueryFlattener.java:401)
	at org.wikimedia.highlighter.experimental.lucene.QueryFlattener.flatten(QueryFlattener.java:145)
	at org.wikimedia.highlighter.experimental.lucene.QueryFlattener.flattenQuery(QueryFlattener.java:214)
	at org.wikimedia.highlighter.experimental.lucene.QueryFlattener.flatten(QueryFlattener.java:123)
	at org.wikimedia.highlighter.experimental.lucene.QueryFlattener.flatten(QueryFlattener.java:103)
	at org.wikimedia.highlighter.experimental.lucene.hit.weight.BasicQueryWeigher.<init>(BasicQueryWeigher.java:46)
	at org.elasticsearch.search.highlight.ExperimentalHighlighter$HighlightExecutionContext.ensureWeigher(ExperimentalHighlighter.java:286)
	at org.elasticsearch.search.highlight.ExperimentalHighlighter$HighlightExecutionContext.highlight(ExperimentalHighlighter.java:177)
	at org.elasticsearch.search.highlight.ExperimentalHighlighter.highlight(ExperimentalHighlighter.java:86)
	... 9 more

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Mentioned In: T112178: Relax 'AND' operator with the common term query

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dcausse created this task.Sep 16 2015, 12:44 PM

dcausse raised the priority of this task from to Needs Triage.

dcausse updated the task description. (Show Details)

dcausse added projects: CirrusSearch, Discovery-Search (Current work).

dcausse subscribed.

Restricted Application added a project: Discovery-ARCHIVED. · View Herald TranscriptSep 16 2015, 12:44 PM

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dcausse mentioned this in T112178: Relax 'AND' operator with the common term query.Sep 16 2015, 12:46 PM

dcausse moved this task from Needs triage to Search on the Discovery-ARCHIVED board.Sep 16 2015, 4:48 PM

dcausse removed a project: Discovery-Search (Current work).

dcausse set Security to None.

@dcausse Do you recommend pulling this into the sprint?

No, I think the fix is pretty easy and the workaround we use is maybe better. This is just a reminder for when I'll have time, it should not take more than 2/3 hours.

In T112746#1649997, @dcausse wrote:

No, I think the fix is pretty easy and the workaround we use is maybe better. This is just a reminder for when I'll have time, it should not take more than 2/3 hours.

Great. Thanks!

• Deskana triaged this task as Low priority.Sep 17 2015, 5:55 PM

• ksmith added a project: Essential-Work.Oct 8 2015, 11:58 PM

The experimental highlighter fails with common terms queryOpen, LowPublicActions

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The experimental highlighter fails with common terms query
Open, LowPublic
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