[tor-relays] nyx question on info on top right side, present on CentOS, missing on Debian.

Damian Johnson atagar at torproject.org
Sat Feb 3 22:58:05 UTC 2018

Hi Stijn, my first thought is that this might be tor's
DisableDebuggerAttachment feature. It causes proc contents to only be
readable by root. Usually this breaks Nyx's connection resolution but
it can prevent resource usage lookups too. Does setting
'DisableDebuggerAttachment 0' in your torrc cause the data to appear?

If not then the next step is to take a peek at the debug logs. If you
send me the logs on both platforms with any data you feel is sensitive
redacted I'd be happy to take a peek. I only need the first five
seconds or so of logs (just need to see the first resource resolution

Cheers! -Damian

On Sat, Feb 3, 2018 at 2:10 PM, Stijn Jonker <sjcjonker at sjc.nl> wrote:
> Hi All,
> I initially went to the nyx website to find the right forum to ask
> questions. I understood this is the one :-), if not apologies.
> So I'm running two relays, one is running on CentOS7, the other Debian
> Stretch. On both I have nyx (2.0.4) installed. The "Debian" one is missing
> the CPU, Exit policy etc info. It's not tor version specific, as I recently
> upgraded the tor software on the nodes regularly.
> So on the CentOS node I see this on the top at the right;
> cpu: 61.3% tor, 5.0% nyx mem: 371 MB (12.4%) pid: 1279 uptime: 02:59:09
> fingerprint: 328E54981C6DDD7D89B89E418724A4A7881E3192
> exit policy: reject *:*
> On the Debian node it's simply not printing any of these three lines. I
> can't find in the (debug) logging whether an utility or library is missing.
> It's nothing major, but annoying. Especially with the new alpha releases
> it's nice to keep an eye out on mem/cpu.
> Does anyone have an idea what the trick is to get it to work on debian?
> -- CentOS info:
> [user at tornode ~]$ tor --version
> Tor version (git-de8bc9eed6eaadfc).
> [user at tornode ~]$ nyx --version
> nyx version 2.0.4 (released November 5, 2017)
> [user at tornode ~]$ uname -a
> Linux tornode.sjc.nl 3.10.0-693.17.1.el7.x86_64 #1 SMP Thu Jan 25 20:13:58
> UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
> -- Debian info:
> [maint at tornode2 ~]$ tor --version
> Tor version (git-9e48338a12fd1fef+0f23e7e96).
> [user at tornode2 ~]$ nyx --version
> nyx version 2.0.4 (released November 5, 2017)
> [user at tornode2 ~]$ uname -a
> Linux tornode2 4.9.0-5-amd64 #1 SMP Debian 4.9.65-3+deb9u2 (2018-01-04)
> x86_64 GNU/Linux
> [user at tornode2 ~]$ lsb_release -c
> Codename: stretch
> Thx,
> Stijn
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