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TIBCO GridServer® 7.1.0

# Example Phases in a Service Execution

The following is a reference example of a typical list of native Service execution phases. Not all possible phases are shown.

Example Service Execution Phases

Phase | Description
Driver Serialize Instance | The serialization of the Service instance object.
Driver Serialize Input | The serialization of the Service input.
Driver Write Input | Driver writes input data to the driver machine file system.
Driver Write Instance | Driver writes task data to the driver machine file system.
Driver Send Input | Driver sends the input message to the Broker. Keep in mind that more than one input can be sent in one message.
Broker Receive Input: | Broker receives the new task entry.
Broker Send Input | Broker sends the input to the Engine.
Engine Receive Input | Engine receives the input message from the Broker.
Engine Deserialize Instance | Engine deserializes task data.
Engine Load Library | Engine loads all necessary libraries for the task.
Engine Call Initialize | Engine calls init method.
Engine Deserialize Input | Engine deserializes input data.
Engine Call Service | Engine executes the task.
Engine Serialize Output | Engine serializes output data.
Engine Write Output | Engine writes output data to disk.
Engine Send Output | Broker receives the task complete message from Engine.
Broker Receive Output | Broker marks the task complete.
Broker Send Output | Broker notifies the driver that the task is ready to collect.
Driver Retrieve Output | Driver retrieves completed tasks info from Broker.
Driver Download Output | Driver gets output data from Engine.
Driver Deserialize Output | Driver deserializes output data.
Driver Call Completed | Driver completes the task.
Broker Remove Output | Broker removes the task from the task entry.

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