vespa-engine/vespa

Support a properties-file (available during runtime) for ml-models (Stateless evaluation in container)

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#9,552 opened on May 24, 2019

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enhancementgood first issue

Description

Hello Vespa Team, Can you please consider support a properties-file which is available during run-time along with the model ? So some meta-data e.g. threshold/label, etc can be associated with the model. This is for the stateless evaluation of the models like (XGBoost, TensorFlow, Onnx, etc) which is supported in vespa.

Thank you, Pinank

Contributor guide

Tech stack
javatensorflow
Domain
machine learningbackend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
unclear
Prerequisites
Understanding of Vespa architectureFamiliarity with ML model evaluation in Vespa
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
10
Research direction
The issue requests adding a properties file for ML models (XGBoost, TensorFlow, ONNX) during stateless evaluation. Since the issue is from 2019 and has no comments, the requester's intent is to associate metadata like thresholds/labels with models. To implement, one should investigate Vespa's model serving infrastructure, specifically how models are packaged and evaluated in containers (e.g., using the model evaluation API). The key challenge is to define a format for the properties file and integrate it into the model loading process. The solution would likely involve modifications to the model configuration and evaluation pipeline.
Support a properties-file (available during runtime) for ml-models (Stateless evaluation in container) · vespa-engine/vespa#9552 | Good First Issue