Guys, i`ve faced this error during Hive installation. Deep log searching gave me this:   Caused by: org.datanucleus.exceptions.NucleusException: Attempt to invoke the "BONECP" 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. the main question is: where to configure CLASSPATH ?   i`ve put mysql-jar into:   # ls /opt/cloudera/parcels/CDH-6.1.1-1.cdh6.1.1.p0.875250/jars/mysql* /opt/cloudera/parcels/CDH-6.1.1-1.cdh6.1.1.p0.875250/jars/mysql-connector-java-5.1.46.jar /opt/cloudera/parcels/CDH-6.1.1-1.cdh6.1.1.p0.875250/jars/mysql-connector-java.jar # But no use, can anyone help me please on this ?   Thanks.   ... View more

Good day guys, im newby in Cloudera and wanted to ask 2 questions.   1) I got 20TB of data and i should migrate it to 10 servers, do i need to have 20TB of disk on each server ? 2) How do i organize the right HDFS model (NameNode, DataNode, SecondaryNameNone) on those 10 servers ?   Thanks, i hope to receive the answer very soon )     ... View more