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Ron Veenstra commented on SOLR-236: ----------------------------------- Thanks for the replies. Thomas, I followed your steps, verifying same java version and build, etc. (all matched. I'm working with a CentOS 5 machine..Any potential for the problem being related to that?) Patching and installing all appeared successful, but the resulting jetty powered page still resulted in: org.apache.solr.common.SolrException: Error loading class 'org.apache.solr.handler.component.CollapseComponent' [followed by the long line of tracebacks..] My solrconfig.xml included the following (included in case there is an obvious flaw): <searchComponent name="collapse" class="org.apache.solr.handler.component.CollapseComponent" /> <requestHandler name="standard" class="solr.SearchHandler" default="true"> <!-- default values for query parameters --> <lst name="defaults"> <str name="echoParams">explicit</str> <!-- <int name="rows">10</int> <str name="fl">*</str> <str name="version">2.1</str> --> </lst> <arr name="components"> <str>collapse</str> </arr> </requestHandler> Stephen: I attempted your configuration as well, with the most recent patch and the patch you referenced, but the results were the same. I am going to attempt a fresh try on an Ubuntu Machine, but any other ideas would be most appreciated. > Field collapsing > ---------------- > > Key: SOLR-236 > URL: https://issues.apache.org/jira/browse/SOLR-236 > Project: Solr > Issue Type: New Feature > Components: search > Affects Versions: 1.3 > Reporter: Emmanuel Keller > Fix For: 1.5 > > Attachments: collapsing-patch-to-1.3.0-dieter.patch, > collapsing-patch-to-1.3.0-ivan.patch, collapsing-patch-to-1.3.0-ivan_2.patch, > collapsing-patch-to-1.3.0-ivan_3.patch, field-collapse-solr-236-2.patch, > field-collapse-solr-236.patch, field-collapsing-extended-592129.patch, > field_collapsing_1.1.0.patch, field_collapsing_1.3.patch, > field_collapsing_dsteigerwald.diff, field_collapsing_dsteigerwald.diff, > field_collapsing_dsteigerwald.diff, SOLR-236-FieldCollapsing.patch, > SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch, > solr-236.patch, SOLR-236_collapsing.patch, SOLR-236_collapsing.patch > > > This patch include a new feature called "Field collapsing". > "Used in order to collapse a group of results with similar value for a given > field to a single entry in the result set. Site collapsing is a special case > of this, where all results for a given web site is collapsed into one or two > entries in the result set, typically with an associated "more documents from > this site" link. See also Duplicate detection." > http://www.fastsearch.com/glossary.aspx?m=48&amid=299 > The implementation add 3 new query parameters (SolrParams): > "collapse.field" to choose the field used to group results > "collapse.type" normal (default value) or adjacent > "collapse.max" to select how many continuous results are allowed before > collapsing > TODO (in progress): > - More documentation (on source code) > - Test cases > Two patches: > - "field_collapsing.patch" for current development version > - "field_collapsing_1.1.0.patch" for Solr-1.1.0 > P.S.: Feedback and misspelling correction are welcome ;-) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.