sqoop从mysql导入hive的一些问题

1.错误：Sqoop:Import failed: java.lang.ClassNotFoundException: org.apache.hadoop.hive.conf.HiveConf

解决方法：

在/etc/profile中添加下面一行

export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$HIVE_HOME/lib/*，修改完后可能会出现第四个错误

2.错误：main ERROR Could not register mbeans java.security.AccessControlException: access denied ("javax.management.MBeanTrustPermission" "register")

解决方法：

Just add the following lines to your java.policy file unter <JRE_HOME>/lib/security.
grant {
　　permission javax.management.MBeanTrustPermission "register";
};

3.错误：ERROR exec.DDLTask: java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.ObjectMapper.readerFor(Ljava/lang/Class;)Lcom/fasterxml/jackson/databind/ObjectReader;

解决犯法：jackson jar包版本冲突，将sqoop/lib下的jackson*.jar备份，将hive/lib包下的jackson*.jar包拷贝过来

4.错误：INFO conf.HiveConf: Found configuration file null

 　　      WARN common.LogUtils: hive-site.xml not found on CLASSPATH

解决方法：

可知未找到hive-site.xml文件

在sqoop-env.sh中添加export HIVE_CONF_DIR=/usr/local/hive/conf

 

参考：http://blog.itpub.net/31506529/viewspace-2213877/