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org.apache.spark.network.client

TransportClientBootstrap

trait TransportClientBootstrap extends AnyRef

A bootstrap which is executed on a TransportClient before it is returned to the user. This enables an initial exchange of information (e.g., SASL authentication tokens) on a once-per- connection basis.

Since connections (and TransportClients) are reused as much as possible, it is generally reasonable to perform an expensive bootstrapping operation, as they often share a lifespan with the JVM itself.

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  1. abstract def doBootstrap(client: TransportClient, channel: Channel): Unit

    Performs the bootstrapping operation, throwing an exception on failure.

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