Hello, I have been trying out deduplication in solr by following: http://wiki.apache.org/solr/Deduplication. I have defined a signature field to hold the values of the signature created based on few other fields in a document and the idea seems to work like a charm in a single solr instance. But, when I have multiple cores and try to do a distributed search ( Http://localhost:8080/solr/core0/select?q=*&shards=localhost:8080/solr/dedupe,localhost:8080/solr/dedupe2&facet=true&facet.field=doc_id) I get the error pasted below. While normal search (with just q) works fine, the facet/stats queries seem to be the culprit. The doc_id contains duplicate ids since I'm testing the same set of documents indexed in both the cores(dedupe, dedupe2). Any insights would be highly appreciated.
Thanks 20-Apr-2012 11:39:35 PM org.apache.solr.common.SolrException log SEVERE: java.lang.NullPointerException at org.apache.solr.handler.component.QueryComponent.mergeIds(QueryComponent.java:887) at org.apache.solr.handler.component.QueryComponent.handleRegularResponses(QueryComponent.java:633) at org.apache.solr.handler.component.QueryComponent.handleResponses(QueryComponent.java:612) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:307) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129) at org.apache.solr.core.SolrCore.execute(SolrCore.java:1540) at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:435) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:256) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662)
