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Talk22 min

CTA Tape Daemon Evolution

Pablo Oliver Cortes · CERN

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About

In 2024, the CTA Tape Daemon was updated to address issues in deployments with multiple drives per tape server. This was a first step towards a major refactoring of the daemon, as in its current state, its multi-process architecture presents problems such as logging information unrelated to the current process and inter-process communication bugs. It also causes confusion in internal discussions and in external bug reports.

In this session, we will provide an update on the current state of the CTA Tape Daemon, explore the upcoming changes designed to reduce the daemon's complexity by removing its parent-child process architecture, and promoting the maintenance process to an independent daemon, as it doesn't perform any drive related tasks. We will conclude with a discussion of possible future developments..

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The talk

  1. CTA Tape Daemon Evolution 2025-03-28 · 22 min · CERN's player

Credits and licence

Institution
CERN
Department
HEP Computing
Speaker
Pablo Oliver Cortes
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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