插入错误与cassandra CQL3-Hex字节转换错误

时间:2013-02-22 10:36:36

标签: nosql cassandra cql3

当我使用cassandra -jdbc将数据惰性化到表中时我得到错误java.sql.SQLSyntaxErrorException:无法将'ani'解析为十六进制字节

在localhost:9160连接到测试群集。 [cqlsh 2.3.0 | Cassandra 1.2.0 | CQL规范3.0.0 |节俭协议19.35.0] 使用CQL3创建表

cqlsh:testkeyspace> create columnfamily login(
                ... key varchar primary key,
                ... name varchar,
                ... password varchar);


package com.bsmart;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class InsertCass {

        public static void main(String[] args) {
            try
            {
                Class.forName("org.apache.cassandra.cql.jdbc.CassandraDriver");
                Connection con =DriverManager.getConnection("jdbc:cassandra://localhost:9160/testkeyspace");

                String qry = "INSERT INTO login (KEY, name, password) VALUES ( 't', 'ani','agrawal');";
                PreparedStatement smt = con.prepareStatement(qry);
                smt.execute();
                // int i=smt.executeUpdate();

                System.out.println("records inserted>>>>");



            }
            catch(Exception e)
            {
                System.out.println(" error: "+e.getMessage());
                e.printStackTrace();
            }

    }

但是错误 -

log4j:WARN No appenders could be found for logger (org.apache.cassandra.cql.jdbc.CassandraDriver).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
java.sql.SQLSyntaxErrorException: cannot parse 'ani' as hex bytes
    at org.apache.cassandra.cql.jdbc.CassandraPreparedStatement.doExecute(CassandraPreparedStatement.java:155)
    at org.apache.cassandra.cql.jdbc.CassandraPreparedStatement.execute(CassandraPreparedStatement.java:191)
    at com.bsmart.InsertCass.main(InsertCass.java:18)
 error: cannot parse 'ani' as hex bytes

请帮帮我。 感谢

2 个答案:

答案 0 :(得分:1)

您需要将name列设为textvarchar。您收到的错误表明它创建为blob

答案 1 :(得分:0)

我自己有这个问题但在我的情况下它来自double

在python的情况下,请确保指定适当的cql版本

cql.connect(cluster_address, port, keyspace, cql_version='3.1.1')