[ https://forge.continuent.org/jira/browse/SEQUOIA-923?page=comments#action_13777 ]
Damian Arregui commented on SEQUOIA-923: ---------------------------------------- After investigation this appears to be due to a synchronization problem on internal data structures holding the controller's view on the database schema. > Exceptions when executing DDL statements in parallel > ----------------------------------------------------- > > Key: SEQUOIA-923 > URL: https://forge.continuent.org/jira/browse/SEQUOIA-923 > Project: Sequoia > Type: Bug > Components: Core > Versions: Sequoia 2.10.6 > Reporter: Damian Arregui > Assignee: Damian Arregui > Fix For: Sequoia 2.10.7 > > > When performing DDL statements in parallel, i.e., many client threads, each > with its own connection, the controller throws Exceptions such as the > following: > 10:12:48,014 ERROR Scenario thread PBenchmark-7 failed with exception > org.continuent.sequoia.common.exceptions.driver.DriverSQLException: Message > of cause: null > at > org.continuent.sequoia.driver.Connection.statementExecuteUpdate(Connection.java:2907) > at > org.continuent.sequoia.driver.Statement.executeUpdateWithSkeleton(Statement.java:573) > at > org.continuent.sequoia.driver.PreparedStatement.executeUpdate(PreparedStatement.java:183) > at > com.continuent.evaluator.benchmark.DDLScenario.run(DDLScenario.java:78) > at > com.continuent.evaluator.benchmark.BenchmarkThread.run(BenchmarkThread.java:79) > Caused by: > org.continuent.sequoia.common.exceptions.driver.protocol.BackendDriverException > SerializableStackTrace of each cause: > org.continuent.sequoia.common.exceptions.driver.protocol.BackendDriverException > at > org.continuent.sequoia.controller.virtualdatabase.protocol.DistributedStatementExecuteUpdate.executeScheduledRequest(DistributedStatementExecuteUpdate.java:138) > at > org.continuent.sequoia.controller.virtualdatabase.protocol.DistributedRequest.handleMessageMultiThreaded(DistributedRequest.java:157) > at > org.continuent.sequoia.controller.virtualdatabase.DistributedVirtualDatabase.handleMessageMultiThreaded(DistributedVirtualDatabase.java:357) > at > org.continuent.hedera.adapters.MulticastRequestAdapterThread.run(MulticastRequestAdapterThread.java:102) > -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://forge.continuent.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira _______________________________________________ Sequoia mailing list [email protected] https://forge.continuent.org/mailman/listinfo/sequoia
