TLDR Tech / Data
Federated Query Platform for ML at Scale: Architecture and Multi-Tenancy
Guidewire used Apache Trino to federate SQL across Iceberg, Redshift, OpenSearch, and customer S3 buckets, speeding exploratory ML workflows. Domain catalogs and Lake Formation ABAC plus Trino RBAC handled isolation, but Trino's S3 layer exposed a governance gap.
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