1、進入hive/conf目錄下，修改hive-default.xml: ?@baidu, I 修改的是 hive-site.xml

hive.metastore.local

true

javax.jdo.option.ConnectionURL

jdbc:mysql://192.168.0.121:3307/hive?createDatabaseIfNotExist=true

javax.jdo.option.ConnectionDriverName

com.mysql.jdbc.Driver

Driver class name for a JDBC metastore

javax.jdo.option.ConnectionUserName

root

username to use against metastore database

javax.jdo.option.ConnectionPassword

root

password to use against metastore database

hive.metastore.warehouse.dir

/home/hadoop/hive/warehouse

location of default database for the warehouse

然后啟動 bin/hive，執行show tables命令 這時報FAILED: Error in metadata: javax.jdo.JDOFatalDataStoreException: Access denied for user 'root'@'fuyanqing.feinno.com' (using

password: YES)。這是因為mysql不允許遠程訪問的問題，執行 grant all on *.*? to 'root'@'%' identified by 'root';

然后再執行show tables命令，這時報：FAILED: Error in metadata: javax.jdo.JDODataStoreException: An exception was thrown while adding/validating class(es) : Specified key was

too long; max key length is 767 bytes。

這個問題是因為hive對mysql的UTF-8編碼方式有限制，修改一下mysql的編碼方式即可：alter database name character set latin1;

總結

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