java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

Question

I have Hadoop 2.7.1 and apache-hive-1.2.1 versions installed on ubuntu 14.0.

1. Why this error is occurring ?
2. Is any metastore installation required?

Answer 1

I have used MySQL DB for Hive MetaStore. Please follow the below steps:

• in hive-site.xml the metastore should be proper

 javax.jdo.option.ConnectionURL 
 jdbc:mysql://localhost/metastorecreateDatabaseIfNotExist=true&useSSL=false

• go to the mysql: mysql -u hduser -p
• then run drop database metastore
• then come out from MySQL and execute schematool -initSchema dbType mysql

Now error will go.