[Mellanox] register thermal data cleanup at exit #24952
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Register atexit callback to clean thermal data on process shutdown. Only cleanup SW control modules. Signed-off-by: Jianyue Wu <jianyuew@nvidia.com>
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Junchao-Mellanox
approved these changes
Dec 30, 2025
jianyuewu
changed the title
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Why I did it
Thermal data was being cleared at startup. we want it cleared on process exit to avoid wiping metrics on launch and ensure a clean shutdown behavior.
How I did it
Register an atexit callback that calls clean_thermal_data with the SFP list, removing the startup-time invocation.
How to verify it
UT and startup, shutdown test.
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
202511