Re: Query result ranking - Score independent
My request was very simple: q= astronomy^0 And Solr returned the exception. Maybe the zero boost factor is not causing the exception? 1) We indexed n documents with a Schema.xml. 2)Then we changed some field type in the Schema.xml 3)Then we indexed other m documents Maybe this could cause the exception? 2010/9/7 Grant Ingersoll gsing...@apache.org On Sep 7, 2010, at 7:08 AM, Alessandro Benedetti wrote: Hi all, I need to retrieve query-results with a ranking independent from each query-result's default lucene score, which means assigning the same score to each query result. I tried to use a zero boost factor ( ^0 ) to reset to zero each query-result's score. This strategy seems to work within the example solr instance, but in my Solr instance, using a zero boost factor causes a Buffer Exception ( HTTP Status 500 - null java.lang.IllegalArgumentException at java.nio.Buffer.limit(Buffer.java:249) at org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:123) at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157) at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38) at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:70) at org.apache.lucene.store.IndexInput.readLong(IndexInput.java:93) at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:210) at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:948) at org.apache.lucene.index.DirectoryReader.document(DirectoryReader.java:506) at org.apache.lucene.index.IndexReader.document(IndexReader.java:947) ) Hmm, that stack trace doesn't align w/ the boost factor. What was your request? I think there might be something else wrong here. Do you know any other technique to reset to some fixed constant value, all the query-result's scores? Each query result should obtain the same score. Any suggestion? The ConstantScoreQuery or a Filter should do this. You could do something like: q=*:*fq=the real query, as in q=*:*fq=field:foo -Grant -- Grant Ingersoll http://lucenerevolution.org Apache Lucene/Solr Conference, Boston Oct 7-8 -- -- Benedetti Alessandro Personal Page: http://tigerbolt.altervista.org Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? William Blake - Songs of Experience -1794 England
Re: Query result ranking - Score independent
The change in the schema shouldn't matter (emphasis on the should). What version of SOLR are you using? I tried this query and it works just fine for me, I'm using 1.4.1 Best Erick On Wed, Sep 8, 2010 at 4:38 AM, Alessandro Benedetti benedetti.ale...@gmail.com wrote: My request was very simple: q= astronomy^0 And Solr returned the exception. Maybe the zero boost factor is not causing the exception? 1) We indexed n documents with a Schema.xml. 2)Then we changed some field type in the Schema.xml 3)Then we indexed other m documents Maybe this could cause the exception? 2010/9/7 Grant Ingersoll gsing...@apache.org On Sep 7, 2010, at 7:08 AM, Alessandro Benedetti wrote: Hi all, I need to retrieve query-results with a ranking independent from each query-result's default lucene score, which means assigning the same score to each query result. I tried to use a zero boost factor ( ^0 ) to reset to zero each query-result's score. This strategy seems to work within the example solr instance, but in my Solr instance, using a zero boost factor causes a Buffer Exception ( HTTP Status 500 - null java.lang.IllegalArgumentException at java.nio.Buffer.limit(Buffer.java:249) at org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:123) at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157) at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38) at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:70) at org.apache.lucene.store.IndexInput.readLong(IndexInput.java:93) at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:210) at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:948) at org.apache.lucene.index.DirectoryReader.document(DirectoryReader.java:506) at org.apache.lucene.index.IndexReader.document(IndexReader.java:947) ) Hmm, that stack trace doesn't align w/ the boost factor. What was your request? I think there might be something else wrong here. Do you know any other technique to reset to some fixed constant value, all the query-result's scores? Each query result should obtain the same score. Any suggestion? The ConstantScoreQuery or a Filter should do this. You could do something like: q=*:*fq=the real query, as in q=*:*fq=field:foo -Grant -- Grant Ingersoll http://lucenerevolution.org Apache Lucene/Solr Conference, Boston Oct 7-8 -- -- Benedetti Alessandro Personal Page: http://tigerbolt.altervista.org Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? William Blake - Songs of Experience -1794 England
Re: Query result ranking - Score independent
Ooops, hit send too quickly. Could you show us the entire URL you send that produces the error? Erick On Wed, Sep 8, 2010 at 7:58 AM, Erick Erickson erickerick...@gmail.comwrote: The change in the schema shouldn't matter (emphasis on the should). What version of SOLR are you using? I tried this query and it works just fine for me, I'm using 1.4.1 Best Erick On Wed, Sep 8, 2010 at 4:38 AM, Alessandro Benedetti benedetti.ale...@gmail.com wrote: My request was very simple: q= astronomy^0 And Solr returned the exception. Maybe the zero boost factor is not causing the exception? 1) We indexed n documents with a Schema.xml. 2)Then we changed some field type in the Schema.xml 3)Then we indexed other m documents Maybe this could cause the exception? 2010/9/7 Grant Ingersoll gsing...@apache.org On Sep 7, 2010, at 7:08 AM, Alessandro Benedetti wrote: Hi all, I need to retrieve query-results with a ranking independent from each query-result's default lucene score, which means assigning the same score to each query result. I tried to use a zero boost factor ( ^0 ) to reset to zero each query-result's score. This strategy seems to work within the example solr instance, but in my Solr instance, using a zero boost factor causes a Buffer Exception ( HTTP Status 500 - null java.lang.IllegalArgumentException at java.nio.Buffer.limit(Buffer.java:249) at org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:123) at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157) at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38) at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:70) at org.apache.lucene.store.IndexInput.readLong(IndexInput.java:93) at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:210) at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:948) at org.apache.lucene.index.DirectoryReader.document(DirectoryReader.java:506) at org.apache.lucene.index.IndexReader.document(IndexReader.java:947) ) Hmm, that stack trace doesn't align w/ the boost factor. What was your request? I think there might be something else wrong here. Do you know any other technique to reset to some fixed constant value, all the query-result's scores? Each query result should obtain the same score. Any suggestion? The ConstantScoreQuery or a Filter should do this. You could do something like: q=*:*fq=the real query, as in q=*:*fq=field:foo -Grant -- Grant Ingersoll http://lucenerevolution.org Apache Lucene/Solr Conference, Boston Oct 7-8 -- -- Benedetti Alessandro Personal Page: http://tigerbolt.altervista.org Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? William Blake - Songs of Experience -1794 England
Re: Query result ranking - Score independent
Generally speaking it is a bad idea to change the schema without reindexing. I found several little things that could go wrong back when I had a huge index and could not reindex. On Wed, Sep 8, 2010 at 4:58 AM, Erick Erickson erickerick...@gmail.com wrote: Ooops, hit send too quickly. Could you show us the entire URL you send that produces the error? Erick On Wed, Sep 8, 2010 at 7:58 AM, Erick Erickson erickerick...@gmail.comwrote: The change in the schema shouldn't matter (emphasis on the should). What version of SOLR are you using? I tried this query and it works just fine for me, I'm using 1.4.1 Best Erick On Wed, Sep 8, 2010 at 4:38 AM, Alessandro Benedetti benedetti.ale...@gmail.com wrote: My request was very simple: q= astronomy^0 And Solr returned the exception. Maybe the zero boost factor is not causing the exception? 1) We indexed n documents with a Schema.xml. 2)Then we changed some field type in the Schema.xml 3)Then we indexed other m documents Maybe this could cause the exception? 2010/9/7 Grant Ingersoll gsing...@apache.org On Sep 7, 2010, at 7:08 AM, Alessandro Benedetti wrote: Hi all, I need to retrieve query-results with a ranking independent from each query-result's default lucene score, which means assigning the same score to each query result. I tried to use a zero boost factor ( ^0 ) to reset to zero each query-result's score. This strategy seems to work within the example solr instance, but in my Solr instance, using a zero boost factor causes a Buffer Exception ( HTTP Status 500 - null java.lang.IllegalArgumentException at java.nio.Buffer.limit(Buffer.java:249) at org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:123) at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157) at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38) at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:70) at org.apache.lucene.store.IndexInput.readLong(IndexInput.java:93) at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:210) at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:948) at org.apache.lucene.index.DirectoryReader.document(DirectoryReader.java:506) at org.apache.lucene.index.IndexReader.document(IndexReader.java:947) ) Hmm, that stack trace doesn't align w/ the boost factor. What was your request? I think there might be something else wrong here. Do you know any other technique to reset to some fixed constant value, all the query-result's scores? Each query result should obtain the same score. Any suggestion? The ConstantScoreQuery or a Filter should do this. You could do something like: q=*:*fq=the real query, as in q=*:*fq=field:foo -Grant -- Grant Ingersoll http://lucenerevolution.org Apache Lucene/Solr Conference, Boston Oct 7-8 -- -- Benedetti Alessandro Personal Page: http://tigerbolt.altervista.org Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? William Blake - Songs of Experience -1794 England -- Lance Norskog goks...@gmail.com
Query result ranking - Score independent
Hi all, I need to retrieve query-results with a ranking independent from each query-result's default lucene score, which means assigning the same score to each query result. I tried to use a zero boost factor ( ^0 ) to reset to zero each query-result's score. This strategy seems to work within the example solr instance, but in my Solr instance, using a zero boost factor causes a Buffer Exception ( HTTP Status 500 - null java.lang.IllegalArgumentException at java.nio.Buffer.limit(Buffer.java:249) at org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:123) at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157) at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38) at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:70) at org.apache.lucene.store.IndexInput.readLong(IndexInput.java:93) at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:210) at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:948) at org.apache.lucene.index.DirectoryReader.document(DirectoryReader.java:506) at org.apache.lucene.index.IndexReader.document(IndexReader.java:947) ) Do you know any other technique to reset to some fixed constant value, all the query-result's scores? Each query result should obtain the same score. Any suggestion? Thx -- -- Benedetti Alessandro Personal Page: http://tigerbolt.altervista.org Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? William Blake - Songs of Experience -1794 England
Re: Query result ranking - Score independent
On Sep 7, 2010, at 7:08 AM, Alessandro Benedetti wrote: Hi all, I need to retrieve query-results with a ranking independent from each query-result's default lucene score, which means assigning the same score to each query result. I tried to use a zero boost factor ( ^0 ) to reset to zero each query-result's score. This strategy seems to work within the example solr instance, but in my Solr instance, using a zero boost factor causes a Buffer Exception ( HTTP Status 500 - null java.lang.IllegalArgumentException at java.nio.Buffer.limit(Buffer.java:249) at org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:123) at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157) at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38) at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:70) at org.apache.lucene.store.IndexInput.readLong(IndexInput.java:93) at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:210) at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:948) at org.apache.lucene.index.DirectoryReader.document(DirectoryReader.java:506) at org.apache.lucene.index.IndexReader.document(IndexReader.java:947) ) Hmm, that stack trace doesn't align w/ the boost factor. What was your request? I think there might be something else wrong here. Do you know any other technique to reset to some fixed constant value, all the query-result's scores? Each query result should obtain the same score. Any suggestion? The ConstantScoreQuery or a Filter should do this. You could do something like: q=*:*fq=the real query, as in q=*:*fq=field:foo -Grant -- Grant Ingersoll http://lucenerevolution.org Apache Lucene/Solr Conference, Boston Oct 7-8
