Caused by: org.datanucleus.exceptions.NucleusException: Attempt to invoke the "DBCP" plugin to create a ConnectionPool gave an error : The specified datastore driver ("com.mysql.jdbc.Driver") was not found in the CLASSPATH. Please check your CLASSPATH specification, and the name of the driver.
解决方案一：查了好多都没有解决由于stackoverflow回复出了点bug只好在自己的博客记录了。
I meet the same problems !
All of the config goes well ,but the mysql-connector-java-5.1.17.jar seems to not work.
Now try this way ,specify the jars when you run spark shell.
spark-shell --jars /usr/local/hive-0.13.1/lib/mysql-connector-java-5.1.17.jar
En ,you can try hive shell as this way.
直接：添加 --jars 指定mysql-connector-java-5.1.17.jar
方案二：
将该jar包上传到hdfs，然后 --jars指定
方案三：
将该jar包上传到各个节点上，并在 /etc/alternatives/spark-conf/classpath.txt 指定
/etc/alternatives/spark-conf/classpath.txt