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[tor-bugs] #33951 [Internal Services/Service - cache]: mtail floods its logs with garbage
#33951: mtail floods its logs with garbage
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Reporter: anarcat | Owner: anarcat
Type: defect | Status: assigned
Priority: Medium | Milestone:
Component: Internal Services/Service - cache | Version:
Severity: Normal | Keywords:
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
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we seen ton of this garbage in the mtail logs:
{{{
I0421 18:43:02.307808 21142 file.go:168] file type does not support
deadline
}}}
there's a lot to unpack here:
* weird log format: the first word is `IMMDD`, that is the above message
is from April 21st (the I is for "Irrelevant character", i guess?)
* 21142 is the pid
* `file type does not support deadline` is an error from the golang
standard library and occurs when someone calls `SetReadDeadline` on a file
that doesn't support it
This happens every minute or so. It gathers about a gigabyte of logs a
month or two.
In later versions of mtail, this is fixed by making turning the "warning"
(technically, it's an "Info" message, but those are displayed
unconditionnally) into a "verbose" (technically `V(2)`) message that
doesn't get shown by default.
The package from buster doesn't have that fix, but the current version in
unstable (rc24) does have it.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33951>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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