Towards Observability for Machine Learning Pipelines
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Software organizations are increasingly incorporating machine learning (ML) into their product offerings, driving a need for new data management tools. Many of these tools facilitate the initial development and deployment of ML applications, contributing to a crowded landscape of disconnected solutions targeted at different stages, or components, of the ML lifecycle. A lack of end-to-end ML pipeline visibility makes it hard to address any issues that may arise after a production deployment, such as unexpected output values or lower-quality predictions. In this paper, we propose a system that wraps around existing tools in the ML development stack and offers end-to-end observability. We introduce our prototype and our vision for mltrace, a platform-agnostic system that provides observability to ML practitioners by (1) executing predefined tests and monitoring ML-specific metrics at component runtime, (2) tracking end-to-end data flow, and (3) allowing users to ask arbitrary post-hoc questions about pipeline health.
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