com.sun.appserv.connectors.internal.api.PoolingException: Connection could not be allocated because: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

Oracle Community | Olivier Chorier Guest | 4 years ago
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    Oracle Community | 4 years ago | Olivier Chorier Guest
    com.sun.appserv.connectors.internal.api.PoolingException: Connection could not be allocated because: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
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    com.sun.appserv.connectors.internal.api.PoolingException: Connection could not be allocated because: No suitable driver found for jdbc:postgresql://localhost:5432/project?loginTimeout=0&socketTimeout=0&prepareThreshold=5&unknownLength=2147483647&loglevel=0&tcpkeepalive=false&binaryTransfer=true
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    Oracle Community | 6 years ago | adinath
    com.sun.appserv.connectors.internal.api.PoolingException: javax.resource.ResourceException: This Managed Connection is not valid as the physical connection is not usable
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    Root Cause Analysis

    1. com.sun.appserv.connectors.internal.api.PoolingException

      Connection could not be allocated because: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

      at com.sun.enterprise.resource.allocator.LocalTxConnectorAllocator.createResource()
    2. Connectors Runtime
      ConnectionPool.createSingleResource
      1. com.sun.enterprise.resource.allocator.LocalTxConnectorAllocator.createResource(LocalTxConnectorAllocator.java:110)
      2. com.sun.enterprise.resource.pool.ConnectionPool.createSingleResource(ConnectionPool.java:907)
      2 frames