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🐛cloudflared tail UUID uses 100% cpu on Linux #1349

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slyoldfox opened this issue Nov 9, 2024 · 1 comment
Open

🐛cloudflared tail UUID uses 100% cpu on Linux #1349

slyoldfox opened this issue Nov 9, 2024 · 1 comment
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Priority: Normal Minor issue impacting one or more users Type: Bug Something isn't working

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@slyoldfox
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Describe the bug
When using the command cloudflared tail UUID the CPU goes up to 100% (though everything works without lag)

To Reproduce
Steps to reproduce the behavior:

  1. Configure a tunnel through the Zero Trust dashboard
  2. I have configured a Public hostname on the tunnel
  3. Access the tunnel after tailing

If it's an issue with Cloudflare Tunnel:
4. Tunnel ID : 426e4bbc-2c4d-462f-b1d4-be6232a5a1ed
5. cloudflared config:

Expected behavior
A more CPU friendly behaviour

Environment and versions

  • OS: Ubuntu 22.04.4
  • Architecture: Intel N97
  • Version: 22.04

Logs and errors
If applicable, add logs or errors to help explain your problem.

Additional context
Add any other context about the problem here.

@slyoldfox slyoldfox added Priority: Normal Minor issue impacting one or more users Type: Bug Something isn't working labels Nov 9, 2024
@slyoldfox
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Not sure if this is accurate or helpful, but strace of that process at 100% cpu yields mainly:

futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1c78d20, FUTEX_WAIT_PRIVATE, 0, NULL) = 0

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Labels
Priority: Normal Minor issue impacting one or more users Type: Bug Something isn't working
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