FRAGATA: Semantic Retrieval of HPC Support Tickets via Hybrid RAG over 20 Years of Request Tracker History

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Main Authors: Paramés-Estévez, Santiago, Filloy-Montesino, Nicolás, Fernández-Fabeiro, Jorge, Mouriño-Gallego, José Carlos
Format: Preprint
Published: 2026
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author Paramés-Estévez, Santiago
Filloy-Montesino, Nicolás
Fernández-Fabeiro, Jorge
Mouriño-Gallego, José Carlos
author_facet Paramés-Estévez, Santiago
Filloy-Montesino, Nicolás
Fernández-Fabeiro, Jorge
Mouriño-Gallego, José Carlos
contents The technical support team of a supercomputing centre accumulates, over the course of decades, a large volume of resolved incidents that constitute critical operational knowledge. At the Galician Supercomputing Center (CESGA) this history has been managed for over twenty years with Request Tracker (RT), whose built-in search engine has significant limitations that hinder knowledge reuse by the support staff. This paper presents Fragata, a semantic ticket search system that combines modern information retrieval techniques with the full RT history. The system can find relevant past incidents regardless of language, the presence of typos, or the specific wording of the query. The architecture is deployed on CESGA's infrastructure, supports incremental updates without service interruption, and offloads the most expensive stages to the FinisTerrae III supercomputer. Preliminary results show a substantial qualitative improvement over RT's native search.
format Preprint
id arxiv_https___arxiv_org_abs_2604_13721
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle FRAGATA: Semantic Retrieval of HPC Support Tickets via Hybrid RAG over 20 Years of Request Tracker History
Paramés-Estévez, Santiago
Filloy-Montesino, Nicolás
Fernández-Fabeiro, Jorge
Mouriño-Gallego, José Carlos
Information Retrieval
Artificial Intelligence
H.3.3; I.2.0
The technical support team of a supercomputing centre accumulates, over the course of decades, a large volume of resolved incidents that constitute critical operational knowledge. At the Galician Supercomputing Center (CESGA) this history has been managed for over twenty years with Request Tracker (RT), whose built-in search engine has significant limitations that hinder knowledge reuse by the support staff. This paper presents Fragata, a semantic ticket search system that combines modern information retrieval techniques with the full RT history. The system can find relevant past incidents regardless of language, the presence of typos, or the specific wording of the query. The architecture is deployed on CESGA's infrastructure, supports incremental updates without service interruption, and offloads the most expensive stages to the FinisTerrae III supercomputer. Preliminary results show a substantial qualitative improvement over RT's native search.
title FRAGATA: Semantic Retrieval of HPC Support Tickets via Hybrid RAG over 20 Years of Request Tracker History
topic Information Retrieval
Artificial Intelligence
H.3.3; I.2.0
url https://arxiv.org/abs/2604.13721