EmbeddedSolr issues

Thu, 27 Jan 2011 10:02:14 -0800 

Hi,
Am getting the following messages while using EmbeddedSolr to retrieve the Term Vectors. I also happened to go through https://issues.apache.org/jira/browse/SOLR-914 . Should I ignore these messages and proceed or should I make any changes? 


[#|2011-01-27T11:56:34.593-0500|INFO|glassfish3.0.1|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadId=33|_ThreadName=21687399  
[Finalizer] Error org.apache.solr.core.CoreContainer - CoreContainer was 
not shutdown prior to finalize(), indicates a bug -- POSSIBLE RESOURCE 
LEAK!!!



[#|2011-01-27T11:56:34.609-0500|INFO|glassfish3.0.1|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadId=33|_ThreadName=21687415  
[Finalizer] Error org.apache.solr.core.SolrCore - Too many close 
[count:-1] on org.apache.solr.core.SolrCore@1638e30. Please report this 
exception to solr-user@lucene.apache.org



[#|2011-01-27T11:56:34.611-0500|INFO|glassfish3.0.1|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadId=33|_ThreadName=21687417  
[Finalizer] Error org.apache.solr.core.SolrCore - REFCOUNT ERROR: 
unreferenced org.apache.solr.core.SolrCore@1638e30 (UserIndexCore) has a 
reference count of -1



[#|2011-01-27T11:56:34.613-0500|INFO|glassfish3.0.1|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadId=33|_ThreadName=21687419  
[Finalizer] Error org.apache.solr.common.util.ConcurrentLRUCache - 
ConcurrentLRUCache was not destroyed prior to finalize(), indicates a 
bug -- POSSIBLE RESOURCE LEAK!!!



[#|2011-01-27T11:56:34.613-0500|INFO|glassfish3.0.1|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadId=33|_ThreadName=21687420  
[Finalizer] Error org.apache.solr.common.util.ConcurrentLRUCache - 
ConcurrentLRUCache was not destroyed prior to finalize(), indicates a 
bug -- POSSIBLE RESOURCE LEAK!!!



This is the code am using:
public static SolrCore USER_IDX_CORE;


public static Map<String, String> getTermsVector(String userId) throws 
ParserConfigurationException, IOException, SAXException {

Map<String, String> freqMap = new HashMap<String, String>();
        try {

            SolrConfig USER_IDX_SOLR_CONFIG = new 
SolrConfig(USER_IDX_CONFIG_FILE);
            IndexSchema USER_IDX_SCHEMA = new 
IndexSchema(USER_IDX_SOLR_CONFIG, USER_IDX_SCHEMA_FILE, null);
            CoreContainer USER_IDX_CONTAINER = new CoreContainer(new 
SolrResourceLoader(SolrIndexer.USER_IDX_SOLR_HOME));
            CoreDescriptor USER_IDX_CORE_DESCRIPTOR = new 
CoreDescriptor(USER_IDX_CONTAINER, USER_IDX_CORE_NAME, 
USER_IDX_SOLR_CONFIG.getResourceLoader()

                    .getInstanceDir());

            
USER_IDX_CORE_DESCRIPTOR.setConfigName(USER_IDX_SOLR_CONFIG.getResourceName()); 

            
USER_IDX_CORE_DESCRIPTOR.setSchemaName(USER_IDX_SCHEMA.getResourceName());
            USER_IDX_CORE = new SolrCore(null, USER_IDX_DATA_DIR, 
USER_IDX_SOLR_CONFIG, USER_IDX_SCHEMA, USER_IDX_CORE_DESCRIPTOR);
            USER_IDX_CONTAINER.register(USER_IDX_CORE_NAME, 
USER_IDX_CORE, false);
            SearchComponent tvComp = 
USER_IDX_CORE.getSearchComponent("tvComponent");


            ModifiableSolrParams params = new ModifiableSolrParams();
            params.add(CommonParams.Q, FIELD_USER_ID + ":" + userId);
            params.add(CommonParams.QT, "tvrh");
            params.add(TermVectorParams.TF, "true");
            params.add(TermVectorComponent.COMPONENT_NAME, "true");

            SolrRequestHandler handler = 
USER_IDX_CORE.getRequestHandler("tvrh");

            SolrQueryResponse rsp;
            rsp = new SolrQueryResponse();
            rsp.add("responseHeader", new SimpleOrderedMap());

            handler.handleRequest(new 
LocalSolrQueryRequest(USER_IDX_CORE, params), rsp);



            NamedList terms = (NamedList) ((NamedList) ((NamedList) 
rsp.getValues().get(TermVectorComponent.TERM_VECTORS)).getVal(0)).get(FIELD_USER_ALL); 


            if (terms != null) {
                for (int i = 0; i < terms.size(); i++) {
                    NamedList freq = (NamedList) terms.getVal(i);

                    freqMap.put(terms.getName(i), 
freq.getVal(0).toString());

                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                USER_IDX_CORE.close();
                USER_IDX_CONTAINER.shutdown();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        return freqMap;
}


Also, USER_IDX_CONTAINER.shutdown(); throws a NullPointerException 
indicating the reference doesn't exist by the time the code execution 
reaches it.


If I don't use thie snippet
            try {
            USER_IDX_CORE.close();
            USER_IDX_CONTAINER.shutdown();
            } catch (Exception e) {
                e.printStackTrace();
            }

I get a similar POSSIBLE RESORUCE LEAK!!! message that says SolrCore 
wasn't closed.


Am calling this code via a message queue, and no concurrent calls happen.

Thanks,
Karthik.














    











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