Package org.apache.iotdb.db.mpp.execution.exchange

Interface IMPPDataExchangeManager

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      ISinkHandle createLocalSinkHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId, org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId, java.lang.String remotePlanNodeId, FragmentInstanceContext instanceContext)  
      ISourceHandle createLocalSourceHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId, java.lang.String localPlanNodeId, org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId, IMPPDataExchangeManagerCallback<java.lang.Throwable> onFailureCallback)  
      ISinkHandle createSinkHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId, org.apache.iotdb.common.rpc.thrift.TEndPoint remoteEndpoint, org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId, java.lang.String remotePlanNodeId, FragmentInstanceContext instanceContext)
      Create a sink handle who sends data blocks to a remote downstream fragment instance in async manner.
      ISourceHandle createSourceHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId, java.lang.String localPlanNodeId, org.apache.iotdb.common.rpc.thrift.TEndPoint remoteEndpoint, org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId, IMPPDataExchangeManagerCallback<java.lang.Throwable> onFailureCallback)
      Create a source handle who fetches data blocks from a remote upstream fragment instance for a plan node of a local fragment instance in async manner.
      void forceDeregisterFragmentInstance​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId fragmentInstanceId)
      Release all the related resources of a fragment instance, including data blocks that are not yet fetched by downstream fragment instances.

    • Method Detail

      • createSinkHandle

        ISinkHandle createSinkHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId,
                             org.apache.iotdb.common.rpc.thrift.TEndPoint remoteEndpoint,
                             org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId,
                             java.lang.String remotePlanNodeId,
                             FragmentInstanceContext instanceContext)
        Create a sink handle who sends data blocks to a remote downstream fragment instance in async manner.
        Parameters:
        localFragmentInstanceId - ID of the local fragment instance who generates and sends data blocks to the sink handle.
        remoteEndpoint - Hostname and Port of the remote fragment instance where the data blocks should be sent to.
        remotePlanNodeId - The sink plan node ID of the remote fragment instance.
        instanceContext - The context of local fragment instance.

      • createLocalSinkHandle

        ISinkHandle createLocalSinkHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId,
                                  org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId,
                                  java.lang.String remotePlanNodeId,
                                  FragmentInstanceContext instanceContext)

      • createSourceHandle

        ISourceHandle createSourceHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId,
                                 java.lang.String localPlanNodeId,
                                 org.apache.iotdb.common.rpc.thrift.TEndPoint remoteEndpoint,
                                 org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId,
                                 IMPPDataExchangeManagerCallback<java.lang.Throwable> onFailureCallback)
        Create a source handle who fetches data blocks from a remote upstream fragment instance for a plan node of a local fragment instance in async manner.
        Parameters:
        localFragmentInstanceId - ID of the local fragment instance who receives data blocks from the source handle.
        localPlanNodeId - The local sink plan node ID.
        remoteEndpoint - Hostname and Port of the remote fragment instance where the data blocks should be received from.
        remoteFragmentInstanceId - ID of the remote fragment instance.
        onFailureCallback - The callback on failure.

      • createLocalSourceHandle

        ISourceHandle createLocalSourceHandle​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId localFragmentInstanceId,
                                      java.lang.String localPlanNodeId,
                                      org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId remoteFragmentInstanceId,
                                      IMPPDataExchangeManagerCallback<java.lang.Throwable> onFailureCallback)

      • forceDeregisterFragmentInstance

        void forceDeregisterFragmentInstance​(org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId fragmentInstanceId)
        Release all the related resources of a fragment instance, including data blocks that are not yet fetched by downstream fragment instances.

        This method should be called when a fragment instance finished in an abnormal state.

        Parameters:
        fragmentInstanceId - ID of the fragment instance to be released.