Custom Serverless Function Scheduling Policies: An APP Tutorial

Creators: de Palma, Giuseppe; Giallorenzo, Saverio; Mauro, Jacopo; Trentin, Matteo; Zavattaro, Gianluigi

Others:: Fondements opérationnels, logiques et algébriques des systèmes logiciels (OLAS) ; Inria Sophia Antipolis - Méditerranée (CRISAM) ; Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Dipartimento di Informatica - Scienza e Ingegneria [Bologna] (DISI) ; Alma Mater Studiorum Università di Bologna = University of Bologna (UNIBO)-Alma Mater Studiorum Università di Bologna = University of Bologna (UNIBO); Alma Mater Studiorum Università di Bologna = University of Bologna (UNIBO); Foundations of Component-based Ubiquitous Systems (FOCUS) ; Inria Sophia Antipolis - Méditerranée (CRISAM) ; Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria); University of Southern Denmark (SDU)

Description

State-of-the-art serverless platforms use hard-coded scheduling policies that hardly accommodate users in implementing functional or performance-related scheduling logic of their functions, e.g., preserving the execution of critical functions within some geographical boundaries or minimising data-access latencies. We addressed this problem by introducing APP: a declarative language for defining per-function scheduling policies which we also implemented as an extension of the open-source OpenWhisk serverless platform. Here, we present a gentle introduction to APP through an illustrative application developed over several incremental steps.

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Custom Serverless Function Scheduling Policies: An APP Tutorial

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