Hive+mySql遇到的问题和解决办法

问题1：

            

Exception in thread "main" java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyException): Operation category READ is not supported in state standby...Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyException): Operation category READ is not supported in state standbyat org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.checkOperation(StandbyState.java:87)...org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:596)at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:554)at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:508)... 7 more

    出现原因：core-site.xml和hdfs-site.xml中的配置错误。如下图：我原先的配置是lida5：2181,lida2:2181,lida3:2181，后来我换服务器了，把lida5换成lida1了，但是忘了修改以上两文件中的配置，导致了上面错误的出现。

    解决方法：修改core-site.xml和hdfs-site.xml文件中的配置。

 

 

 

问题2：

[ERROR] Terminal initialization failed; falling back to unsupportedjava.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expectedat jline.TerminalFactory.create(TerminalFactory.java:101)at jline.TerminalFactory.get(TerminalFactory.java:158)at jline.console.ConsoleReader.<init>(ConsoleReader.java:229)at jline.console.ConsoleReader.<init>(ConsoleReader.java:221)at jline.console.ConsoleReader.<init>(ConsoleReader.java:209)at org.apache.hadoop.hive.cli.CliDriver.setupConsoleReader(CliDriver.java:787)at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:721)at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.apache.hadoop.util.RunJar.main(RunJar.java:212) Exception in thread "main" java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expectedat jline.console.ConsoleReader.<init>(ConsoleReader.java:230)at jline.console.ConsoleReader.<init>(ConsoleReader.java:221)at jline.console.ConsoleReader.<init>(ConsoleReader.java:209)at org.apache.hadoop.hive.cli.CliDriver.setupConsoleReader(CliDriver.java:787)at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:721)at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.apache.hadoop.util.RunJar.main(RunJar.java:212)

    出现原因和解决办法可参看下面的连接：

http://blog.csdn.net/olfisher/article/details/48730229

到此还没完事，拷贝完之后，还需要删除/hadoop-2.5.2/share/hadoop/yarn/lib下的 jline-0.9.94.jar

 

 

问题3：

FAILED: Error in metadata: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient

    出现原因和解决办法可参看下面的连接：

http://www.java123.net/v/949343.html

 

 

问题4：

java.sql.SQLException: No suitable driver found for jdbc:jdbc:mysql://lida5/hiveat java.sql.DriverManager.getConnection(DriverManager.java:596)at java.sql.DriverManager.getConnection(DriverManager.java:187)at com.jolbox.bonecp.BoneCP.obtainRawInternalConnection(BoneCP.java:361)at com.jolbox.bonecp.BoneCP.<init>(BoneCP.java:416)at com.jolbox.bonecp.BoneCPDataSource.getConnection(BoneCPDataSource.java:120)...at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)... 18 more

   出现原因和解决办法:我已用蓝色字体标识出出错原因。解决办法自己悟吧！

 

 

问题5：

org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Unable to open a test connection to the given database. JDBC url = jdbc:mysql://*.*.*.*:3306/*?useUnicode=true&characterEncoding=utf8, username = root. Terminating connection pool. Original Exception: ------java.sql.SQLException: Access denied for user 'root'@'lida4l' (using password: NO)

    出现原因和解决办法可参考下面的链接：

http://blog.csdn.net/jueshengtianya/article/details/12087443

问题6：

NestedThrowables:java.sql.SQLException: Unable to open a test connection to the given database.JDBC url = jdbc:mysql://lida4:3306/hive, username = root. Terminating connection pool (set lazyInit to true if you expect to start your database after your app).Original Exception: ------com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)...at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.apache.hadoop.util.RunJar.main(RunJar.java:212)Caused by: java.net.ConnectException: Connection refusedat java.net.PlainSocketImpl.socketConnect(Native Method)...at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258)at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:305)... 75 more

    出现原因：mySql没有启动。

    解决方法：先启动mySql，然后再启动Hive。