各位大侠，我搭建了一个hadoop环境，用hive做数据仓库，mysql做hive的元数据仓库，用于定时分析用户数据中的日志文件，但在hive访问mysql的过程中，不定时的报如下错误：
java.sql.SQLException: Query returned non-zero code: 1, cause: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. MetaException(message:javax.jdo.JDODataStoreException: Could not retrieve transation read-only status server
at org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:451)
at org.datanucleus.api.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:732)
at org.datanucleus.api.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:752)
at org.apache.hadoop.hive.metastore.ObjectStore.createTable(ObjectStore.java:784)
at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
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:98)
at com.sun.proxy.$Proxy0.createTable(Unknown Source)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_core(HiveMetaStore.java:1374)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_with_environment_context(HiveMetaStore.java:1407)
at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:102)
at com.sun.proxy.$Proxy10.create_table_with_environment_context(Unknown Source)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.create_table_with_environment_context(HiveMetaStoreClient.java:1884)
at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.create_table_with_environment_context(SessionHiveMetaStoreClient.java:96)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.createTable(HiveMetaStoreClient.java:607)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.createTable(HiveMetaStoreClient.java:595)
at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:90)
at com.sun.proxy.$Proxy11.createTable(Unknown Source)
at org.apache.hadoop.hive.ql.metadata.Hive.createTable(Hive.java:670)
at org.apache.hadoop.hive.ql.exec.DDLTask.createTable(DDLTask.java:3959)
at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:295)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:85)
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1604)
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1364)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1177)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1004)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:994)
at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.execute(HiveServer.java:197)
at org.apache.hadoop.hive.service.ThriftHive$Processor$execute.getResult(ThriftHive.java:644)
at org.apache.hadoop.hive.service.ThriftHive$Processor$execute.getResult(ThriftHive.java:628)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:206)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
NestedThrowablesStackTrace:
java.sql.SQLException: Could not retrieve transation read-only status server
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1094)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:997)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:983)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:928)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:949)
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3967)
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3938)
at com.jolbox.bonecp.ConnectionHandle.isReadOnly(ConnectionHandle.java:867)
at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:422)
at org.datanucleus.store.rdbms.valuegenerator.TableGenerator.createRepository(TableGenerator.java:270)
at org.datanucleus.store.rdbms.valuegenerator.AbstractRDBMSGenerator.obtainGenerationBlock(AbstractRDBMSGenerator.java:162)
at org.datanucleus.store.valuegenerator.AbstractGenerator.obtainGenerationBlock(AbstractGenerator.java:197)
at org.datanucleus.store.valuegenerator.AbstractGenerator.next(AbstractGenerator.java:105)
at org.datanucleus.store.rdbms.RDBMSStoreManager.getStrategyValueForGenerator(RDBMSStoreManager.java:2005)
at org.datanucleus.store.AbstractStoreManager.getStrategyValue(AbstractStoreManager.java:1386)
at org.datanucleus.ExecutionContextImpl.newObjectId(ExecutionContextImpl.java:3827)
at org.datanucleus.state.JDOStateManager.setIdentity(JDOStateManager.java:2571)
at org.datanucleus.state.JDOStateManager.initialiseForPersistentNew(JDOStateManager.java:513)
at org.datanucleus.state.ObjectProviderFactoryImpl.newForPersistentNew(ObjectProviderFactoryImpl.java:232)
at org.datanucleus.ExecutionContextImpl.newObjectProviderForPersistentNew(ExecutionContextImpl.java:1414)
at org.datanucleus.ExecutionContextImpl.persistObjectInternal(ExecutionContextImpl.java:2218)
at org.datanucleus.ExecutionContextImpl.persistObjectWork(ExecutionContextImpl.java:2065)
at org.datanucleus.ExecutionContextImpl.persistObject(ExecutionContextImpl.java:1913)
at org.datanucleus.ExecutionContextThreadedImpl.persistObject(ExecutionContextThreadedImpl.java:217)
at org.datanucleus.api.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:727)
at org.datanucleus.api.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:752)
at org.apache.hadoop.hive.metastore.ObjectStore.createTable(ObjectStore.java:784)
at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
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:98)
at com.sun.proxy.$Proxy0.createTable(Unknown Source)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_core(HiveMetaStore.java:1374)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_with_environment_context(HiveMetaStore.java:1407)
at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
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:102)
at com.sun.proxy.$Proxy10.create_table_with_environment_context(Unknown Source)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.create_table_with_environment_context(HiveMetaStoreClient.java:1884)
at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.create_table_with_environment_context(SessionHiveMetaStoreClient.java:96)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.createTable(HiveMetaStoreClient.java:607)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.createTable(HiveMetaStoreClient.java:595)
at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:90)
at com.sun.proxy.$Proxy11.createTable(Unknown Source)
at org.apache.hadoop.hive.ql.metadata.Hive.createTable(Hive.java:670)
at org.apache.hadoop.hive.ql.exec.DDLTask.createTable(DDLTask.java:3959)
at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:295)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:85)
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1604)
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1364)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1177)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1004)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:994)
at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.execute(HiveServer.java:197)
at org.apache.hadoop.hive.service.ThriftHive$Processor$execute.getResult(ThriftHive.java:644)
at org.apache.hadoop.hive.service.ThriftHive$Processor$execute.getResult(ThriftHive.java:628)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:206)
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:744)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
在网上查询说是mysql驱动包的问题，但更新了mysql驱动之后，依然还是会报这个错误，
有时候能执行成功，有时候执行不成功，不知道各位大侠谁遇到过类似的问题！
