Hive Metastore没有创建MYSQL或Derby Connection。
对于德比
schematool -dbType derby -initSchema
Metastore connection URL: jdbc:mysql://localhost/metastore
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: hive
schematool -dbType derby -info
Metastore connection URL: jdbc:mysql://localhost/metastore
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: hive
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to load driver
*** schemaTool failed ***
对于mysql
schematool -dbType mysql -initSchema
Metastore connection URL: jdbc:mysql://localhost/metastore
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: hive
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to load driver
*** schemaTool failed ***
schematool -dbType mysql -info
Metastore connection URL: jdbc:mysql://localhost/metastore
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: hive
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to load driver
*** schemaTool failed ***
问题是什么。
我正在运行Hive 0.12.0
答案 0 :(得分:1)
我认为问题出在您的网址上。修改URL如下。把mysql端口号。
Metastore连接网址:jdbc:mysql://localhost:3306/metastore
答案 1 :(得分:1)
如果您想访问Derby,我怀疑这些应该是:
Metastore connection URL: jdbc:derby://localhost:1527/metastore
Metastore Connection Driver : org.apache.derby.jdbc.ClientDriver
而不是
Metastore connection URL: jdbc:mysql://localhost/metastore
Metastore Connection Driver : com.mysql.jdbc.Driver
答案 2 :(得分:1)
对于此特定错误"无法加载驱动程序",您应检查是否已复制mysql连接器或在Hive lib文件夹中有链接。
ln -s /usr/share/java/mysql-connector-java.jar $ HIVE_HOME / lib / mysql-connector-java.jar
(如果你没有在Java库中拥有它,请下载它)
同样也可以获得Derby的lib。
答案 3 :(得分:0)
错误消息非常广泛。要获得有关根本原因的更多信息,schematool支持-verbose
标志:
schematool -dbType derby -initSchema -verbose
这将打印完整的堆栈跟踪,在我的情况下识别丢失的数据库:
引起:com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 未知的数据库和