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Bug 2028285 - tracer hangs forever if not ran via tty
Summary: tracer hangs forever if not ran via tty
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Satellite
Classification: Red Hat
Component: katello-tracer
Version: 6.10.1
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: stream
Assignee: satellite6-bugs
QA Contact: Sam Bible
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-12-01 22:04 UTC by jcallaha
Modified: 2024-06-06 02:17 UTC (History)
8 users (show)

Fixed In Version: Tracer 1.1
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2024-06-06 02:17:21 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   SAT-19642 0 None Migrated None 2024-06-06 02:17:19 UTC

Description jcallaha 2021-12-01 22:04:14 UTC 
Description of problem:
tracer performs a check to see if it can expect additional input from stdin, if so then it tries to read from stdin
https://github.com/FrostyX/tracer/blob/master/tracer/main.py#L42
However, this conditional also triggers if you run tracer via a non-tty ssh method. tracer then hangs on the blocking read until the session is killed.

Version-Release number of selected component (if applicable):
All versions. This part of the codebase has been intact for at least 7 years.

How reproducible:
100%

Steps to Reproduce:
1. Install tracer on a host
2. ssh root@<your host> tracer

Actual results:
The ssh command will continue to wait until killed (or timed out by other means)

Expected results:
tracer runs as normal (with a better mechanism of checking the stdin buffer)

Additional info:
os.isatty(0) also has the same issue
Comment 2 Brad Buckingham 2023-07-21 21:06:39 UTC 
Upon review of our valid but aging backlog the Satellite Team has concluded that this Bugzilla does not meet the criteria for a resolution in the near term, and are planning to close in a month. This message may be a repeat of a previous update and the bug is again being considered to be closed. If you have any concerns about this, please contact your Red Hat Account team.  Thank you.
Comment 3 Jakub Kadlčík 2023-08-18 12:08:57 UTC 
I am sorry, I must have missed the issue somehow :-/

I am proposing this upstream PR
https://github.com/FrostyX/tracer/pull/201
Comment 4 Brad Buckingham 2023-09-01 20:42:10 UTC 
Jakub,

Thanks for submitting the upstream PR.

I'll update this so that it doesn't go through auto-closure.

Partha,

Can you have the katello team help with the review/verification of the upstream PR so that we may get incorporated in an upcoming Satellite release?

Thanks!
Comment 6 Ian Ballou 2024-01-16 16:15:44 UTC 
We need to set this to modified and note which version of tracer receives https://github.com/FrostyX/tracer/pull/201
Comment 7 Eric Helms 2024-06-06 02:17:21 UTC 
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