Hi,
I have a two shard collection running and I'm getting this error on each
query:
2014-03-21 17:08:42,018 [qtp-75] ERROR
org.apache.solr.servlet.SolrDispatchFilter -
*null:java.lang.IllegalArgumentException:
numHits must be > 0; please use TotalHitCountCollector if you just need the
total hit count*
at
org.apache.lucene.search.TopFieldCollector.create(TopFieldCollector.java:1130)
at
org.apache.lucene.search.TopFieldCollector.create(TopFieldCollector.java:1079)
at
org.apache.lucene.search.grouping.AbstractSecondPassGroupingCollector.<init>(AbstractSecondPassGroupingCollector.java:75)
at
org.apache.lucene.search.grouping.term.TermSecondPassGroupingCollector.<init>(TermSecondPassGroupingCollector.java:49)
at
org.apache.solr.search.grouping.distributed.command.TopGroupsFieldCommand.create(TopGroupsFieldCommand.java:129)
at
org.apache.solr.search.grouping.CommandHandler.execute(CommandHandler.java:142)
at
org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:387)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:214)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1916)
at
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:780)
Note that I'm using grouping and disabling it fixed the problem.
I was aware that SolrCloud does not fully supports grouping in a
distributed setup but I was expecting incorrect results (that have to
addressed with custom hashing afaik) and not an error.
Does anyone see this error before?
Ugo
