metadata时通过JPOX ORM来维护的

metadata database

local derby

javax.jdo.option.ConnectionURL
javax.jdo.option.ConnectionDriverName

RDBMS

javax.jdo.option.ConnectionURL jdbc:mysql://host/db?createDatabaseIfNotExist=true
javax.jdo.option.ConnectionDriverName com.mysql.jdbc.Driver

javax.jdo.option.ConnectionUserName
javax.jdo.option.ConnectionPassword

metadata server

如果使用的时独立的metadata服务

服务器

javax.jdo.option.ConnectionURL
javax.jdo.option.ConnectionDriverName
javax.jdo.option.ConnectionUserName
javax.jdo.option.ConnectionPassword
hive.metastore.warehouse.dir

hive --service metastore -p <port_num>

客户端

hive.metastore.uris thrift://host_name:port
hive.metastore.local false
hive.metastore.warehouse.dir hdfs_path

通用配置

hive.metastore.port 9083
hive.metastore.server.min.threads 200
hive.metastore.server.max.threads 100000