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Posted to dev@lucene.apache.org by "Hoss Man (JIRA)" <ji...@apache.org> on 2018/01/06 22:53:00 UTC
[jira] [Resolved] (SOLR-11824) distributed json.facet "type:range"
can return buckets out of order when mincount>0
[ https://issues.apache.org/jira/browse/SOLR-11824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hoss Man resolved SOLR-11824.
-----------------------------
Resolution: Fixed
Fix Version/s: 7.3
master (8.0)
> distributed json.facet "type:range" can return buckets out of order when mincount>0
> -----------------------------------------------------------------------------------
>
> Key: SOLR-11824
> URL: https://issues.apache.org/jira/browse/SOLR-11824
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Facet Module
> Reporter: Hoss Man
> Assignee: Hoss Man
> Fix For: master (8.0), 7.3
>
> Attachments: SOLR-11824.patch
>
>
> Discovered this while working on SOLR-3218, but it's a general problem with how the code is designed (and the existing code even has a TODO in FacetRangeMerger refering to the problem) ... this is essentially the same bug FacetComponent's {{facet.range}} had that was fixed in SOLR-6154: When he coordinator "combines" the response from each shard, the buckets can get out of order depending on which buckets were excluded by the first shard to respond.
> Depending on how many shards you have, it's fairly trivial to reproduce using {{bin/solr -e cloud}} and the {{exampledocs/*.xml}} files...
> {noformat}
> $ curl http://localhost:8983/solr/techproducts/select -d 'q=*:*&rows=0&wt=xml&json.facet={
> foo:{ type:range, field:price, start:0, end:2000, gap:100, other:all, mincount:1} }'
> <?xml version="1.0" encoding="UTF-8"?>
> <response>
> <lst name="responseHeader">
> <bool name="zkConnected">true</bool>
> <int name="status">0</int>
> <int name="QTime">13</int>
> <lst name="params">
> <str name="q">*:*</str>
> <str name="json.facet">{
> foo:{ type:range, field:price, start:0, end:2000, gap:100, other:all, mincount:1} }</str>
> <str name="rows">0</str>
> <str name="wt">xml</str>
> </lst>
> </lst>
> <result name="response" numFound="32" start="0" maxScore="1.0">
> </result>
> <lst name="facets">
> <long name="count">32</long>
> <lst name="foo">
> <arr name="buckets">
> <lst>
> <float name="val">0.0</float>
> <long name="count">7</long>
> </lst>
> <lst>
> <float name="val">100.0</float>
> <long name="count">2</long>
> </lst>
> <lst>
> <float name="val">300.0</float>
> <long name="count">3</long>
> </lst>
> <lst>
> <float name="val">400.0</float>
> <long name="count">1</long>
> </lst>
> <lst>
> <float name="val">200.0</float>
> <long name="count">1</long>
> </lst>
> <lst>
> <float name="val">600.0</float>
> <long name="count">1</long>
> </lst>
> </arr>
> <lst name="before">
> <long name="count">0</long>
> </lst>
> <lst name="after">
> <long name="count">1</long>
> </lst>
> <lst name="between">
> <long name="count">15</long>
> </lst>
> </lst>
> </lst>
> </response>
> {noformat}
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