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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8496) Facet search count numbers are falsified by older document versions when multi-select is used
Date Sat, 16 Jan 2016 19:13:39 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15103384#comment-15103384
] 

Yonik Seeley commented on SOLR-8496:
------------------------------------

bq. I'm concerned this bug may be hitting us in many different places besides facets, such
as field collapsing, and exporting.

If you're wondering about post filters, I think it depends on how they get their docs.
If it's through the normal mechanism (search(query, collector)) then we're good.  Lucene filters
out deleted docs before they hit the collector.
If you ever feed a collector yourself, you need to ensure that it isn't fed deleted docs.

> Facet search count numbers are falsified by older document versions when multi-select
is used
> ---------------------------------------------------------------------------------------------
>
>                 Key: SOLR-8496
>                 URL: https://issues.apache.org/jira/browse/SOLR-8496
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 5.4
>         Environment: Linux 3.16.0-4-amd64 x86_64 Debian 8.2
> openjdk-7-jre-headless:amd64   version 7u91-2.6.3-1~deb8u1
> solr-5.4.0, extracted from official tar
> Default solr settings from install script:SOLR_HEAP="512m"
> GC_LOG_OPTS="-verbose:gc -XX:+PrintHeapAtGC -XX:+PrintGCDetails \
> -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime"
> GC_TUNE="-XX:NewRatio=3 \
> -XX:SurvivorRatio=4 \
> -XX:TargetSurvivorRatio=90 \
> -XX:MaxTenuringThreshold=8 \
> -XX:+UseConcMarkSweepGC \
> -XX:+UseParNewGC \
> -XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
> -XX:+CMSScavengeBeforeRemark \
> -XX:PretenureSizeThreshold=64m \
> -XX:+UseCMSInitiatingOccupancyOnly \
> -XX:CMSInitiatingOccupancyFraction=50 \
> -XX:CMSMaxAbortablePrecleanTime=6000 \
> -XX:+CMSParallelRemarkEnabled \
> -XX:+ParallelRefProcEnabled"
> SOLR_OPTS="$SOLR_OPTS -Xss256k"
>            Reporter: Andreas Müller
>            Assignee: Yonik Seeley
>             Fix For: 5.5, Trunk
>
>         Attachments: SOLR-8496.patch
>
>
> Our setup is based on multiple cores. In One core we have a multi-filed with integer
values. and some other unimportant fields. We're using multi-faceting for this field.
> We're querying a test scenario with:
> {code}
> http://localhost:8983/solr/core-name/select?q=dummyask: (true) AND manufacturer: false
AND id: (15039 16882 10850 20781)&fq={!tag=professions}professions: (59)&fl=id&wt=json&indent=true&facet=true&facet.field={!ex=professions}professions
> {code}
> - Query: (numDocs:48545, maxDoc:48545)
> {code:xml}
> <response>
> <lst name="responseHeader">
> <int name="status">0</int>
> <int name="QTime">1</int>
> </lst>
> <result name="response" numFound="4" start="0">
> <doc>
> <int name="id">10850</int>
> </doc>
> <doc>
> <int name="id">16882</int>
> </doc>
> <doc>
> <int name="id">15039</int>
> </doc>
> <doc>
> <int name="id">20781</int>
> </doc>
> </result>
> <lst name="facet_counts">
> <lst name="facet_queries"/>
> <lst name="facet_fields">
> <lst name="professions">
> <int name="59">4</int>
> </lst>
> </lst>
> <lst name="facet_dates"/>
> <lst name="facet_ranges"/>
> <lst name="facet_intervals"/>
> <lst name="facet_heatmaps"/>
> </lst>
> </response>
> {code}
> - Then we update one document and change some fields (numDocs:48545, maxDoc:48546) *The
number of maxDocs is increased*
> {code:xml}
> <response>
> <lst name="responseHeader">
> <int name="status">0</int>
> <int name="QTime">1</int>
> </lst>
> <result name="response" numFound="4" start="0">
> <doc>
> <int name="id">10850</int>
> </doc>
> <doc>
> <int name="id">16882</int>
> </doc>
> <doc>
> <int name="id">15039</int>
> </doc>
> <doc>
> <int name="id">20781</int>
> </doc>
> </result>
> <lst name="facet_counts">
> <lst name="facet_queries"/>
> <lst name="facet_fields">
> <lst name="professions">
> <int name="59">5</int>
> </lst>
> </lst>
> <lst name="facet_dates"/>
> <lst name="facet_ranges"/>
> <lst name="facet_intervals"/>
> <lst name="facet_heatmaps"/>
> </lst>
> </response>
> {code}
> *The Problem:*
> In the first query, we're getting a facet count of 4, which is correct. After updating
one document, we're getting 5 as a result wich is not correct.



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