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https://issues.apache.org/jira/browse/SOLR-12460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amrit Sarkar updated SOLR-12460:
--------------------------------
Attachment: car_stuff.zip
> Filtercache getting filled up when domain switches are involved in Json facets
> ------------------------------------------------------------------------------
>
> Key: SOLR-12460
> URL: https://issues.apache.org/jira/browse/SOLR-12460
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Facet Module
> Affects Versions: master (8.0)
> Reporter: Amrit Sarkar
> Priority: Major
> Attachments: car_stuff.zip
>
>
> FacetProcessor.java :: {{handleJoinField}} calls
> SolrIndexSearcher.getDocSet(..domainquery..) which eventually cache join
> queries like:
> {code}
> key:{ !join from=[vin_l-value] to=[vin_l-value] } { !cache=false }
> ConstantScore(BitSetDocTopFilter)
> value: org.apache.solr.search.SortedIntDocSet@40886054 lastAccessed:824,
> {code}
> and when we execute the same query again, some of the entries are not getting
> used at all. Please note: the filterCache entries are not getting used
> strictly when we have more than 1 shard in the collection.
> Sample: {{car_stuff}} collection with multiple doc-types: vehicle, claims,
> defects - 10 shards
> {code}
> http://localhost:8983/solr/car_stuff/query?rows=0&q=doc_type_s:vehicle AND
> v_model_s:model_009&json.facet={
> models:{
> type:terms,
> field:"v_model_s",
> limit:-1,
> facet:{
> year_per_model:{
> type:terms,
> field:"v_year_i",
> limit:-1,
> facet:{
> claim_month:{
> domain:{
> join:{
> from:"vin_l",
> to:"vin_l"
> },
> filter:"doc_type_s:claim"
> },
> type:terms,
> field:"claim_opcode_s",
> limit:-1
> }
> }
> }
> }
> }
> }
> {code}
> After executing this query for first time, filterCache for one of the cores
> looks like:
> {code}
> "CACHE.searcher.filterCache":{
> "lookups":151,
> "hits":49,
> "cumulative_evictions":0,
> "size":103,
> "hitratio":0.32,
> "evictions":0,
> "cumulative_lookups":151,
> "cumulative_hitratio":0.32,
> "warmupTime":0,
> "inserts":103,
> "cumulative_inserts":103,
> "cumulative_hits":49}
> {code}
> 2nd time executing same query:
> {code}
> "CACHE.searcher.filterCache":{
> "lookups":303,
> "hits":151,
> "cumulative_evictions":0,
> "size":153,
> "hitratio":0.5,
> "evictions":0,
> "cumulative_lookups":303,
> "cumulative_hitratio":0.5,
> "warmupTime":0,
> "inserts":153,
> "cumulative_inserts":153,
> "cumulative_hits":151}
> {code}
> Looking into the entries of the filterCache looks like this:
> {code}
> .....
> key: v_year_i:[1977 TO 1977] value:
> org.apache.solr.search.BitDocSet@1524fa9c lastAccessed:457,
> key: v_model_s:model_003 value: org.apache.solr.search.BitDocSet@61f348dd
> lastAccessed:157,
> key:{ !join from=[vin_l-value] to=[vin_l-value] } { !cache=false }
> ConstantScore(BitSetDocTopFilter)
> value: org.apache.solr.search.SortedIntDocSet@40886054 lastAccessed:824,
> .....
> {code}
> The collection backup is uploaded on the JIRA.
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