Are the below properties in hive-site.xml correct for Hive access to cassandra??
(I HAVE COPIED ENTIRE HIVE-DEFAULT.XML CONTENT BUT HAVE CHANGED ONLY THE BELOW PROPERTIES)
javax.jdo.option.ConnectionURL : cassandra://localhost:9160
javax.jdo.option.ConnectionDriverName:org.apache.cassandra.cql.jdbc.CassandraDriver
hive.stats.dbclass: jdbc:cassandra
hive.stats.jdbcdriver: org.apache.cassandra.cql.jdbc.CassandraDriver
hive.stats.dbconnectionstring: jdbc:cassandra:;databaseName=TempStatsStore;create=true
I am running 1-node Cassandra. But, later would make it a minimum 2 node cluster.
When I run the below table creation command I get an error:
CREATE EXTERNAL TABLE MyHiveTable
(m string, n string, o string, p string)
STORED BY 'org.apache.hadoop.hive.cassandra.cql3.CqlStorageHandler'
TBLPROPERTIES ( "cassandra.ks.name" = "cql3ks",
"cassandra.cf.name" = "test",
"cassandra.cql3.type" = "text, text, text, text");
Error:
FAILED: Error in metadata: javax.jdo.JDOFatalInternalException: Error creating transactional connection factory
NestedThrowables:
java.lang.reflect.InvocationTargetException
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask
don't know about jdo settings but you could try this link which is far better option for integrating hive with cassandra - https://github.com/milliondreams/hive/tree/cas-support-cql/cassandra-handler