Hive MetaStore 配置

官方介紹一：https://cwiki.apache.org/confluence/display/Hive/AdminManual+MetastoreAdmin

metastore的ER圖：https://issues.apache.org/jira/secure/attachment/12471108/HiveMetaStore.pdf

有兩種配置方式，分別有本地和遠程兩種配置方法： metastore server和metastore database

非metastore相關的配置參數：參見一，參見二，metastore安全配置

基本的配置參數：

hive.metastore.warehouse.dir	URI of the default location for native tables
hive.metastore.local	local or remote metastore (removed as of Hive 0.10: If hive.metastore.uris is empty local mode is assumed, remote otherwise)
javax.jdo.option.ConnectionDriverName	JDBC Driver class name for the data store
javax.jdo.option.ConnectionURL	JDBC connection string for the data store
hive.metastore.uris（可配置多個，實現負載均衡，由於metastore無狀態）	Hive connects to one of these URIs to make metadata requests to a remote Metastore (comma separated list of URIs)