Hi folks, I use to search within multiple indexes using ParallelMultiSearcher. All the indexes are remote. There are many index servers and each of them contains multiple indexes.
While searching, I am getting exception when one of the indexes has a problem. The exception is given. I edited the following methods, 1. MultiSearcher : public int docFreq(Term term) throws IOException 2. ParallelMultiSearcher : TopDocs search I deleted all problematic searchable objects from the list and did the search again. Now its working ok. Is this a feasible solution..? please comment about this. Thanks, Vipin R caught a class java.lang.NullPointerException with message: null Exception in thread "main" java.lang.NullPointerException at org.apache.lucene.index.TermInfosReader.ensureIndexIsRead( TermInfosReader.java:100) at org.apache.lucene.index.TermInfosReader.get( TermInfosReader.java:133) at org.apache.lucene.index.SegmentReader.docFreq ( SegmentReader.java:358) at org.apache.lucene.search.IndexSearcher.docFreq( IndexSearcher.java:79) at org.apache.lucene.search.RemoteSearchable.docFreq( RemoteSearchable.java:57) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke( DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke( Method.java:585) at sun.rmi.server.UnicastServerRef.dispatch( UnicastServerRef.java:294) at sun.rmi.transport.Transport$1.run( Transport.java:153) at java.security.AccessController.doPrivileged (Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:149) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run (TCPTransport.java:701) at java.lang.Thread.run(Thread.java:595) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer( StreamRemoteCall.java:247) at sun.rmi.transport.StreamRemoteCall.executeCall( StreamRemoteCall.java:223) at sun.rmi.server.UnicastRef.invoke( UnicastRef.java:126) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod( RemoteObjectInvocationHandler.java:179) at java.rmi.server.RemoteObjectInvocationHandler.invoke ( RemoteObjectInvocationHandler.java:132) at $Proxy0.docFreq(Unknown Source) at org.apache.lucene.search.MultiSearcher.docFreq(MultiSearcher.java:140) at org.apache.lucene.search.ParallelMultiSearcher.docFreq ( ParallelMultiSearcher.java:46) at org.apache.lucene.search.Similarity.idf( Similarity.java:457) at org.apache.lucene.search.TermQuery$TermWeight.( TermQuery.java:44) at org.apache.lucene.search.TermQuery.createWeight ( TermQuery.java:145) at org.apache.lucene.search.BooleanQuery$BooleanWeight.( BooleanQuery.java:187) at org.apache.lucene.search.BooleanQuery$BooleanWeight2.(BooleanQuery.java:342) at org.apache.lucene.search.BooleanQuery.createWeight(BooleanQuery.java:384) at org.apache.lucene.search.Query.weight(Query.java :95) at org.apache.lucene.search.Hits.(Hits.java:49) at org.apache.lucene.search.Searcher.search(Searcher.java:54) at com.sumobrain.search.SearchMaster.doSearch(SearchMaster.java:244) at com.sumobrain.search.SearchMaster.main(SearchMaster.java:672)
