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Talk14 min

Migrating CTA Frontend from XRootD/SSI to gRPC

Konstantina Skovola · CERN

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About

The CTA Frontend serves the physics workflow event requests made by the disk system buffer, for example EOS or dCache, and cta-admin commands submitted by operators and automated scripts. Communication with the frontend is currently based on XRootD/SSI. However, not all disk front-ends support the SSI extensions to XRootD, which creates a constraint for sites using CTA as a tape backend. As a result, we have decided to migrate CTA to a more widely-supported protocol. This talk will present the ongoing work on migrating from XRootD/SSI to the industry-standard gRPC framework. We will present the implementation of the rpc methods, discuss how authentication works with gRPC vs XRootD/SSI and finally discuss the roadmap for completely switching to gRPC..

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The talk

  1. Migrating CTA Frontend from XRootD/SSI to gRPC 2025-03-27 · 14 min · CERN's player

Credits and licence

Institution
CERN
Department
HEP Computing
Speaker
Konstantina Skovola
Year
2025
Language
English
Subjects
Computer science
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
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