Hi,
I'm writing a custom handler that forwards a request to a handler of another
core. The custom handler is defined in "core0" and the core I try to send
the request to is "core2" which has a mlt handler. Here is the code of my
custom handler (extends RequestHandlerBase and implements SolrCoreAware):
public void inform(SolrCore core) {
this.core = core;
this.cores = core.getCoreDescriptor().getCoreContainer();
this.multiCoreHandler = cores.getMultiCoreHandler();
}
public void handleRequestBody(SolrQueryRequest request, SolrQueryResponse
response)
throws Exception {
SolrCore coreToRequest = cores.getCore("core2");
ModifiableSolrParams params = new ModifiableSolrParams();
params.set("q", "Lucene");
params.set("mlt.fl", "body");
params.set("debugQuery", "true");
request = new LocalSolrQueryRequest(coreToRequest, params);
SolrRequestHandler mlt = coreToRequest.getRequestHandler("/mlt");
coreToRequest.execute(mlt, request, response);
coreToRequest.close();
}
I'm calling this handler from firefox with this url (the path of my custom
handler is /nlt):
http://localhost:8080/solr/core0/nlt
With my debugger, I can see, after the execute() method is executed, this
line in the log:
13-Mar-2009 4:25:59 PM org.apache.solr.core.SolrCore execute
INFO: [core2] webapp=/solr path=/nlt params={} webapp=null path=null
params={q=Lucene&mlt.fl=body&debugQuery=true} status=0 QTime=125
Which seems logical: the core2 is executing the request (though I'm
wondering how core2 knows about the "/nlt" path)
After, I let the debugger resume the program and I see those lines:
13-Mar-2009 4:25:59 PM org.apache.solr.core.SolrCore execute
INFO: [core0] webapp=/solr path=/nlt params={} webapp=null path=null
params={q=Lucene&mlt.fl=body&debugQuery=true} status=0 QTime=125 status=0
QTime=141
13-Mar-2009 4:25:59 PM org.apache.solr.common.SolrException log
SEVERE: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.apache.lucene.index.MultiSegmentReader.document(MultiSegmentReader.java:259)
at
org.apache.lucene.index.IndexReader.document(IndexReader.java:632)
at
org.apache.solr.search.SolrIndexSearcher.doc(SolrIndexSearcher.java:371)
at org.apache.solr.request.XMLWriter$3.writeDocs(XMLWriter.java:479)
It looks like core0 is also trying to handle the request. With the debugger,
I discover that the code is trying to access a document with an id of the
index of core2 within the index of core0, which fails
(SolrIndexSearcher.java:371).
Any idea with there seems to be two cores that try to handle the request?
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