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POError while trying to connect to cassandra through hector API
 

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  1. POError while trying to connect to cassandra through hector API
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    <p>I have written java code for reading records from cassandra. But it is giving run-time error.. Here is java code:- </p> <pre><code>import javax.naming.spi.DirStateFactory.Result; import me.prettyprint.cassandra.serializers.StringSerializer; import me.prettyprint.hector.api.*; import me.prettyprint.hector.api.Cluster; import me.prettyprint.hector.api.Keyspace; import me.prettyprint.hector.api.beans.HColumn; import me.prettyprint.hector.api.factory.HFactory; import me.prettyprint.hector.api.mutation.Mutator; import me.prettyprint.hector.api.query.ColumnQuery; import me.prettyprint.hector.api.query.QueryResult; public class HectorConnect { public static void main(String args[]){ try{ Cluster c = HFactory.getOrCreateCluster("Test", "localhost:9160"); Keyspace ko = HFactory.createKeyspace("myspace", c); StringSerializer se = StringSerializer.get(); ColumnQuery&lt;String, String&gt; q = HFactory.createColumnQuery(ko, se, se); QueryResult&lt;HColumn&lt;String, String&gt;&gt; r = q.setKey("cara"). setName("customername"). setColumnFamily("customer"). execute(); } catch(Exception e){ e.printStackTrace(); } } } </code></pre> <p>and error it throws is as folows:-</p> <p>log4j:WARN No appenders could be found for logger (me.prettyprint.cassandra.service.CassandraClientPoolFactory). log4j:WARN Please initialize the log4j system properly. Exception in thread "main" java.lang.NoSuchMethodError: org.apache.cassandra.thrift.Cassandra$Client.describe_keyspaces()Ljava/util/Set; at me.prettyprint.cassandra.service.CassandraClientImpl.getKeyspaces(CassandraClientImpl.java:141) at me.prettyprint.cassandra.service.CassandraClientImpl.getKeyspace(CassandraClientImpl.java:114) at me.prettyprint.cassandra.service.CassandraClientImpl.getKeyspace(CassandraClientImpl.java:104) at me.prettyprint.cassandra.model.ExecutingKeyspace.doExecute(ExecutingKeyspace.java:57) at me.prettyprint.cassandra.model.thrift.ThriftColumnQuery.execute(ThriftColumnQuery.java:34) at HectorConnect.main(HectorConnect.java:30)</p> <p>Anyone knows solution to this?? </p>
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USSaurabh Deshpande
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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    2. PO
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    1. VO
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      1. POError while trying to connect to cassandra through hector API
      1. This table or related slice is empty.
      1. VTUpMod
    1. COYou are using wrong versions of jar files.
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      1. POError while trying to connect to cassandra through hector API
      1. USmanish
 

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