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Posted to dev@lucene.apache.org by "rajanimaski (JIRA)" <ji...@apache.org> on 2015/10/20 18:52:27 UTC
[jira] [Updated] (SOLR-8174) group.ngroups results are not returned when documents indexed to same shard — with Document routing via composite keys
[ https://issues.apache.org/jira/browse/SOLR-8174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
rajanimaski updated SOLR-8174:
------------------------------
Priority: Minor (was: Major)
> group.ngroups results are not returned when documents indexed to same shard — with Document routing via composite keys
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-8174
> URL: https://issues.apache.org/jira/browse/SOLR-8174
> Project: Solr
> Issue Type: Bug
> Components: search, SolrCloud
> Affects Versions: 5.3
> Reporter: rajanimaski
> Priority: Minor
>
> System setup —
> It’s a 2 sharded collection with Collection Name - anotherEtailSkus and the two shard core names are : anotherEtailSkus_shard1_replica1, anotherEtailSkus_shard2_replica1
> The collection is created with the following http rest api
> http://localhost:8983/solr/admin/collections?action=CREATE&name=anotherEtailSkus&numShards=2&replicationFactor=1&collection.configName=FileTest&maxShardsPerNode=2&router.name=compositeId
> Sample Documents Indexed —
> {"id":"125!1","groupedItemId_i":"1"}
> {"id":"7!1","groupedItemId_i":"2"}
> Problem Statement —
> Now, with grouping paramters, on any shard with _route_ param the response of group result is different. One of the shard returns group.ngroups and other does not. Please find the attached screenshot and query for reference in google doc link.
> Group query on a shard with the change in shard core only.
> http://localhost:8983/solr/anotherEtailSkus_shard2_replica1/select?q=*%3A*&fl=id,groupedItemId_i&wt=json&indent=true&group=true&group.format=simple&group.field=groupedItemId_i&group.ngroups=true&group.facet=true&_route_=125!
> -----groups.ngroups are not returned in response
> http://localhost:8983/solr/anotherEtailSkus_shard1_replica1/select?q=*%3A*&fl=id,groupedItemId_i&wt=json&indent=true&group=true&group.format=simple&group.field=groupedItemId_i&group.ngroups=true&group.facet=true&_route_=125!
> ----- group.ngroups are returned.
> Document routing via composite key should have routed documents with same key to same shards thus returning group results correctly— as per link [2]. But is not the case.
> Refer to the below google doc for detailed description.
> https://docs.google.com/document/d/1g3M8sm0xGKJt5u26Qab6qawm5GgMzs58pe76uUoJQwk/edit?usp=sharing
> [2]https://cwiki.apache.org/confluence/display/solr/Result+Grouping#ResultGrouping-DistributedResultGroupingCaveats
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