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POExternal file field not working & throws null pointer exception
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  1. POExternal file field not working & throws null pointer exception
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    copied!<p>I configured my external file field configuration like follows:</p> <pre><code> &lt; field name="idRank" type="idRankFile" indexed="true" stored="true" omitNorms="true" omitTermFreqAndPositions="true" valType="pfloat" /&gt; &lt; fieldType name="idRankFile" keyField="id" defVal="10" stored="true" indexed="true" class="solr.ExternalFileField" valType="pfloat|float|tfloat" /&gt; </code></pre> <p>Following are the value I kept in the file named :external_idRank.txt.Here keys are the values of size field in the document.</p> <pre><code>2938025 = 100.0 4030380 = 115.0 9751 = 125.0 12738 = 135.0 9752 = 145.0 </code></pre> <p>I used the following query to retrieve the result, sorting it based on the <code>idRank</code> value:</p> <pre><code>/solr/collection1/select/?&amp;q=content:* _ val _:"sum(idRank,1)"&amp;fl=size&amp;rows=100 </code></pre> <p>But, when I used the following query it throws Exception like follows,</p> <blockquote> <p>java.lang.NullPointerException at org.apache.solr.search.function.FileFloatSource.getFloats(FileFloatSource.java:273) at org.apache.solr.search.function.FileFloatSource.access$000(FileFloatSource.java:51) at org.apache.solr.search.function.FileFloatSource$2.createValue(FileFloatSource.java:147) at org.apache.solr.search.function.FileFloatSource$Cache.get(FileFloatSource.java:190) at org.apache.solr.search.function.FileFloatSource.getCachedFloats(FileFloatSource.java:141) at org.apache.solr.search.function.FileFloatSource.getValues(FileFloatSource.java:84) at org.apache.lucene.queries.function.valuesource.MultiFloatFunction.getValues(MultiFloatFunction.java:65) at org.apache.lucene.queries.function.FunctionQuery$AllScorer.(FunctionQuery.java:120) at org.apache.lucene.queries.function.FunctionQuery$FunctionWeight.scorer(FunctionQuery.java:95) at org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:323) at</p> </blockquote> <p>What should I make to execute this query without exception?</p>
 

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