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Null pointer Exception when run search funtion
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maivanha1610  
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 More options Feb 21 2011, 3:24 am
From: maivanha1610 <maivanha1...@gmail.com>
Date: Mon, 21 Feb 2011 00:24:13 -0800 (PST)
Local: Mon, Feb 21 2011 3:24 am
Subject: Null pointer Exception when run search funtion
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Hi

I'm beginner, I'm running HelloWorldClass example, writer function is
run successfully but when I call search function then it fail and
throw exception.
my code:
                IndexReader reader = new HBaseIndexReader(tablePool,
tableName, primaryKeyField);
                IndexSearcher searcher = new IndexSearcher(reader);
                TopDocs docs = searcher.search(new TermQuery(new Term("content",
"plays")), 3);
                searcher.close();

when run, exception is thrown  in TopDocs docs = searcher.search(new
TermQuery(new Term("content", "plays")), 3);
here is exception:

Exception in thread "main" java.lang.NullPointerException
        at org.hbasene.index.HBaseTermPositions.seek(HBaseTermPositions.java:
161)
        at org.apache.lucene.index.IndexReader.termDocs(IndexReader.java:814)
        at org.apache.lucene.search.TermQuery
$TermWeight.scorer(TermQuery.java:74)
        at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:
205)
        at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:
168)
        at org.apache.lucene.search.Searcher.search(Searcher.java:98)
        at org.apache.lucene.search.Searcher.search(Searcher.java:108)
        at myTest.HelloWorldClass.main(HelloWorldClass.java:57)

After that, I prepare my search function to:
                HBaseIndexReader indexReader = new
HBaseIndexReader(tablePool, tableName, primaryKeyField);
                HBaseIndexSearcher indexSearcher = new
HBaseIndexSearcher(indexReader);
                TermQuery termQuery = new TermQuery(new Term("content", "plays"));
                //Sort sort = new Sort(new SortField("plays", SortField.STRING));
                TopDocs docs = indexSearcher.search(termQuery, 10);
                //TopDocs docs =
indexSearcher.search(termQuery.createWeight(indexSearcher), null, 25,
sort, false);
                indexSearcher.close();

and again, exception is thrown in TopDocs docs =
indexSearcher.search(termQuery, 10);
here is exception:
Exception in thread "main" java.lang.NullPointerException
        at org.hbasene.index.HBaseTermPositions.seek(HBaseTermPositions.java:
161)
        at org.apache.lucene.index.IndexReader.termDocs(IndexReader.java:814)
        at org.apache.lucene.search.TermQuery
$TermWeight.scorer(TermQuery.java:74)
        at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:
205)
        at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:
168)
        at org.apache.lucene.search.Searcher.search(Searcher.java:98)
        at org.apache.lucene.search.Searcher.search(Searcher.java:108)
        at myTest.HelloWorldClass.main(HelloWorldClass.java:64)

I'm using Hbase 0.20.6 and hadoop 0.20.2, zookeeper 3.3.2, lucene
3.0.1

Please tell me how to fix this problem

Thanks

Mai Van Ha


 
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maivanha1610  
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 More options Feb 21 2011, 3:42 am
From: maivanha1610 <maivanha1...@gmail.com>
Date: Mon, 21 Feb 2011 00:42:09 -0800 (PST)
Local: Mon, Feb 21 2011 3:42 am
Subject: Null pointer Exception when run search funtion
Print | Individual message | Show original | Report this message | Find messages by this author
Hi

I'm beginner, I'm running HelloWorldClass example, writer function is
run successfully but when I call search function then it fail and
throw exception.
my code:
                IndexReader reader = new
HBaseIndexReader(tablePool,tableName, primaryKeyField);
                IndexSearcher searcher = new IndexSearcher(reader);
                TopDocs docs = searcher.search(new TermQuery(new
Term("content","plays")), 3);
                searcher.close();

when run, exception is thrown  in TopDocs docs = searcher.search(new
TermQuery(new Term("content", "plays")), 3);
here is exception:

Exception in thread "main" java.lang.NullPointerException
        at
org.hbasene.index.HBaseTermPositions.seek(HBaseTermPositions.java:161)
        at
org.apache.lucene.index.IndexReader.termDocs(IndexReader.java:814)
        at org.apache.lucene.search.TermQuery
$TermWeight.scorer(TermQuery.java:74)
        at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:205)
        at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:168)
        at org.apache.lucene.search.Searcher.search(Searcher.java:98)
        at org.apache.lucene.search.Searcher.search(Searcher.java:108)
        at myTest.HelloWorldClass.main(HelloWorldClass.java:57)

After that, I prepare my search function to:
                HBaseIndexReader indexReader = new
HBaseIndexReader(tablePool, tableName, primaryKeyField);
                HBaseIndexSearcher indexSearcher = new
HBaseIndexSearcher(indexReader);
                TermQuery termQuery = new TermQuery(new
Term("content", "plays"));
                //Sort sort = new Sort(new SortField("plays",
SortField.STRING));
                TopDocs docs = indexSearcher.search(termQuery, 10);
                //TopDocs docs =
indexSearcher.search(termQuery.createWeight(indexSearcher), null, 25,
sort, false);
                indexSearcher.close();

and again, exception is thrown in TopDocs docs =
indexSearcher.search(termQuery, 10);
here is exception:
Exception in thread "main" java.lang.NullPointerException
        at
org.hbasene.index.HBaseTermPositions.seek(HBaseTermPositions.java:161)
        at
org.apache.lucene.index.IndexReader.termDocs(IndexReader.java:814)
        at org.apache.lucene.search.TermQuery
$TermWeight.scorer(TermQuery.java:74)
        at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:205)
        at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:168)
        at org.apache.lucene.search.Searcher.search(Searcher.java:98)
        at org.apache.lucene.search.Searcher.search(Searcher.java:108)
        at myTest.HelloWorldClass.main(HelloWorldClass.java:64)

I'm using Hbase 0.20.6 and hadoop 0.20.2, zookeeper 3.3.2, lucene
3.0.1

Please tell me how to fix this problem

Thanks

Mai Van Ha


 
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Amit Jaiswal  
View profile   Translate to Translated (View Original)
 More options Feb 21 2011, 3:50 am
From: Amit Jaiswal <amit.jais...@gmail.com>
Date: Mon, 21 Feb 2011 03:50:09 -0500
Local: Mon, Feb 21 2011 3:50 am
Subject: Re: Null pointer Exception when run search funtion
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Hi,

The latest code in trunk is not stable. I had to use some hacks to
make it work. You can try to checkout an older version of hbasene by
date or contact the developers.

-amit


 
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maivanha1610  
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 More options Feb 21 2011, 4:55 am
From: maivanha1610 <maivanha1...@gmail.com>
Date: Mon, 21 Feb 2011 01:55:15 -0800 (PST)
Local: Mon, Feb 21 2011 4:55 am
Subject: Re: Null pointer Exception when run search funtion
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Hi

Thank for your reply,but please give me svn link to checkout older
version, I don't know where is it ! I find it int https://github.com/akkumar/hbasene
but I didn't see older version or where to view it.

Thanks

Mai Van Ha

On Feb 21, 3:50 pm, Amit Jaiswal <amit.jais...@gmail.com> wrote:


 
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Amit Jaiswal  
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 More options Feb 21 2011, 4:59 am
From: Amit Jaiswal <amit.jais...@gmail.com>
Date: Mon, 21 Feb 2011 04:59:20 -0500
Local: Mon, Feb 21 2011 4:59 am
Subject: Re: Null pointer Exception when run search funtion
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There should be some option in git. (Sorry, I am myself not a git expert).

-amit


 
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maivanha1610  
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 More options Feb 21 2011, 5:03 am
From: maivanha1610 <maivanha1...@gmail.com>
Date: Mon, 21 Feb 2011 02:03:59 -0800 (PST)
Local: Mon, Feb 21 2011 5:03 am
Subject: Re: Null pointer Exception when run search funtion
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Hi

I saw some version of source code from link: https://github.com/akkumar/hbasene/commits/master
but I don't now which is best for me to run search function.
Could you help me!!

Thanks

Mai Van Ha

On Feb 21, 3:50 pm, Amit Jaiswal <amit.jais...@gmail.com> wrote:


 
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maivanha1610  
View profile   Translate to Translated (View Original)
 More options Feb 23 2011, 2:31 am
From: maivanha1610 <maivanha1...@gmail.com>
Date: Tue, 22 Feb 2011 23:31:19 -0800 (PST)
Local: Wed, Feb 23 2011 2:31 am
Subject: Re: Null pointer Exception when run search funtion
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Hi
Could you tell me how to hack it?
I've tried more than tens versions (from latest version) but they
didn't run and I see that not easy to understand source code to
prepare error.

Mai Van Ha

On Feb 21, 3:50 pm, Amit Jaiswal <amit.jais...@gmail.com> wrote:


 
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