摘要：
createDatabaseIfNotExist=trueMetastoreConnectionDriver.com.mysql.jdb.DriverMetastoreconnectionUser:rootorg.apache.hhadoop.hhive.metastore.HiveMetaException:无法获取方案规避。原因：java.sql.SQLException:访问用户'root'@'s150'SQLErrorcode:1045使用--verbosefordetailedstacktrace。***SchemaToolfailed***错误原因：根密码设置不正确。这里，它被设置为本地根用户MariaDB[mysql]˃的登录密码setpasswordforroot@localhost=密码；s150的登录密码应设置为MariaDB[mysql]˃setpasswordforroot@s150=密码；查看mysql。用户初始化元数据[xiaoqiu@s150/soft/hhive/conf]$schemaeool-initSchema-dbTypemysqlSLF4J:Classpath包含多个SLF4J绑定。SLF4J:Foundbindingin[jar:file:/soft/apache-hive-2.3.3-bin/lib/log4j-SLF4J-impl-2.6.2.jar！
hive初始化元数据的时候出错，该root用户没有权限
[xiaoqiu@s150 /soft/hive/conf]$ schematool -initSchema -dbType mysql
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/soft/apache-hive-2.3.3-bin/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/soft/hadoop-2.7.5/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Metastore connection URL: jdbc:mysql://192.168.109.150:3306/hive_metastore?createDatabaseIfNotExist=true
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: root
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to get schema version.
Underlying cause: java.sql.SQLException : Access denied for user 'root'@'s150' (using password: YES)
SQL Error code: 1045
Use --verbose for detailed stacktrace.
*** schemaTool failed ***
出错原因：root的密码设置错了，这里设置成了本地的root用户的登录密码
MariaDB [mysql]> set password for root@localhost=password('root');应该设置成为s150的登录密码
MariaDB [mysql]> set password for root@s150=password('root');查看mysql.user
这时就可以初始化元数据了
[xiaoqiu@s150 /soft/hive/conf]$ schematool -initSchema -dbType mysql
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/soft/apache-hive-2.3.3-bin/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/soft/hadoop-2.7.5/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Metastore connection URL: jdbc:mysql://192.168.109.150:3306/hive_metastore?createDatabaseIfNotExist=true
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: root
Starting metastore schema initialization to 2.3.0
Initialization script hive-schema-2.3.0.mysql.sql
Initialization script completed
schemaTool completed