hive创建带有中文注释的表报错；
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. MetaException(message:javax.jdo.JDODataStoreException: Transaction failed to commit
at org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:451)
at org.datanucleus.api.jdo.JDOTransaction.rollback(JDOTransaction.java:186)
at org.apache.hadoop.hive.metastore.ObjectStore.rollbackTransaction(ObjectStore.java:444)
at org.apache.hadoop.hive.metastore.ObjectStore.createTable(ObjectStore.java:746)
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.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:108)
at com.sun.proxy.$Proxy0.createTable(Unknown Source)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_core(HiveMetaStore.java:1270)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_with_environment_context(HiveMetaStore.java:1303)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:106)
at com.sun.proxy.$Proxy12.create_table_with_environment_context(Unknown Source)
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$create_table_with_environment_context.getResult(ThriftHiveMetastore.java:8016)
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$create_table_with_environment_context.getResult(ThriftHiveMetastore.java:8000)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at org.apache.hadoop.hive.metastore.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:48)
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:244)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
NestedThrowablesStackTrace:
Exception thrown flushing changes to datastore
org.datanucleus.exceptions.NucleusDataStoreException: Exception thrown flushing changes to datastore
at org.datanucleus.store.rdbms.SQLController$1.transactionFlushed(SQLController.java:708)
at org.datanucleus.store.connection.AbstractManagedConnection.transactionFlushed(AbstractManagedConnection.java:86)
at org.datanucleus.store.connection.ConnectionManagerImpl$2.transactionFlushed(ConnectionManagerImpl.java:454)
at org.datanucleus.TransactionImpl.flush(TransactionImpl.java:203)
at org.datanucleus.TransactionImpl.rollback(TransactionImpl.java:420)
at org.datanucleus.api.jdo.JDOTransaction.rollback(JDOTransaction.java:182)
at org.apache.hadoop.hive.metastore.ObjectStore.rollbackTransaction(ObjectStore.java:444)
at org.apache.hadoop.hive.metastore.ObjectStore.createTable(ObjectStore.java:746)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:108)
at com.sun.proxy.$Proxy0.createTable(Unknown Source)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_core(HiveMetaStore.java:1270)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_with_environment_context(HiveMetaStore.java:1303)
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.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:106)
at com.sun.proxy.$Proxy12.create_table_with_environment_context(Unknown Source)
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$create_table_with_environment_context.getResult(ThriftHiveMetastore.java:8016)
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$create_table_with_environment_context.getResult(ThriftHiveMetastore.java:8000)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at org.apache.hadoop.hive.metastore.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:48)
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:244)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after statement closed.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
at com.mysql.jdbc.StatementImpl.checkClosed(StatementImpl.java:447)
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1411)
at com.jolbox.bonecp.StatementHandle.executeBatch(StatementHandle.java:424)
at org.datanucleus.store.rdbms.ParamLoggingPreparedStatement.executeBatch(ParamLoggingPreparedStatement.java:372)
at org.datanucleus.store.rdbms.SQLController.processConnectionStatement(SQLController.java:628)
at org.datanucleus.store.rdbms.SQLController.processStatementsForConnection(SQLController.java:596)
at org.datanucleus.store.rdbms.SQLController$1.transactionFlushed(SQLController.java:683)
... 30 more
Nested Throwables StackTrace:
character_set_database 需要设置成“latin1”
修改数据库编码：
mysql> set character_set_database =latin1;
Query OK, 0 rows affected (0.00 sec)
mysql> show variables like '%char%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
为了支持Hive建表时插入中文注释 需要在MySQL中做如下设置：
use hive;
//修改字段注释字符集
alter table COLUMNS_V2 modify column COMMENT varchar(256) character set utf8;
//修改表注释字符集
alter table TABLE_PARAMS modify column PARAM_VALUE varchar(4000) character set utf8;
//修改分区注释字符集
alter table PARTITION_KEYS modify column PKEY_COMMENT varchar(4000) character set utf8;
再次执行建表语句，成功！！！
hive> create table page_view
> (
> page_id bigint comment '页面ID',
> page_name string comment '页面名称',
> page_url string comment '页面URL'
> )
> comment '页面视图'
> partitioned by (ds string comment '当前时间，用于分区字段')
> row format delimited
> stored as rcfile
> location '/user/hive/test';
OK
Time taken: 0.493 seconds
hive> show tables;
OK
page_view
Time taken: 0.057 seconds, Fetched: 1 row(s)
hive> desc page_view;
OK
page_id bigint 页面ID
page_name string 页面名称
page_url string 页面URL
ds string 当前时间，用于分区字段 # Partition Information
# col_name data_type comment ds string 当前时间，用于分区字段
Time taken: 0.19 seconds, Fetched: 9 row(s)
参考：http://blog.csdn.net/levy_cui/article/details/51646145