How to disable transactions from the client side when connecting to MetaMatrix

Solution Verified - Updated -

Issue

  • Disable transactions for a client connection
  • Receive below error when executing read-only queries:
    Exception in thread "main"
    com.metamatrix.jdbc.MMSQLException: Error occurred on connector
    mmuuid:0ac0bc40-a684-1200-8f24-b98cb158fd37 - Connection must be of
    type XAConnection.
    
         at com.metamatrix.jdbc.MMSQLException.create(MMSQLException.java:71)
         at com.metamatrix.jdbc.MMSQLException.create(MMSQLException.java:52)
         at com.metamatrix.jdbc.MMStatement.setException(MMStatement.java:358)
         at com.metamatrix.jdbc.MMPreparedStatement.processQueryMessage(MMPreparedStatement.java:176)
         at com.metamatrix.jdbc.MMPreparedStatement.executeQuery(MMPreparedStatement.java:210)
         at DataSourceCommandTest.main(DataSourceCommandTest.java:66)
    Caused
    by: [MetaMatrixException]Error occurred on connector
    mmuuid:0ac0bc40-a684-1200-8f24-b98cb158fd37 - Connection must be of
    type XAConnection.
    1 [ConnectorException]Error occurred on connector
    mmuuid:0ac0bc40-a684-1200-8f24-b98cb158fd37 - Connection must be of
    type XAConnection.
         at com.metamatrix.dqp.message.ResultsMessage.setException(ResultsMessage.java:272)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorWorker.handleError(ConnectorWorker.java:181)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorWorker.process(ConnectorWorker.java:156)
         at com.metamatrix.common.queue.QueueWorker.run(QueueWorker.java:51)
    Caused
    by: com.metamatrix.api.exception.MetaMatrixException[0]:
    com.metamatrix.data.exception.ConnectorException[0]:
    ConnectorException:
    com.metamatrix.core.MetaMatrixCoreException$StatusHolder@102799c
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestState.getConnection(ConnectorRequestState.java:113)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestState.createExecution(ConnectorRequestState.java:142)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestStateManager.createExecution(ConnectorRequestStateManager.java:114)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorWorker.process(ConnectorWorker.java:138)
         at com.metamatrix.common.queue.QueueWorker.run(QueueWorker.java:51)
    Caused
    by: com.metamatrix.data.exception.ConnectorException[0]:
    ConnectorException:
    com.metamatrix.core.MetaMatrixCoreException$StatusHolder@102799c
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestState.getConnection(ConnectorRequestState.java:113)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestState.createExecution(ConnectorRequestState.java:142)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestStateManager.createExecution(ConnectorRequestStateManager.java:114)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorWorker.process(ConnectorWorker.java:138)
         at com.metamatrix.common.queue.QueueWorker.run(QueueWorker.java:51)
    Caused by: ConnectorException: com.metamatrix.core.MetaMatrixCoreException$StatusHolder@102799c
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestState.getConnection(ConnectorRequestState.java:113)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestState.createExecution(ConnectorRequestState.java:142)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorRequestStateManager.createExecution(ConnectorRequestStateManager.java:114)
         at com.metamatrix.dqp.internal.datamgr.impl.ConnectorWorker.process(ConnectorWorker.java:138)
         at com.metamatrix.common.queue.QueueWorker.run(QueueWorker.java:51)
    

Environment

  • MetaMatrix Enterprise Server 5.5.4

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