[tor-relays] How to reduce tor CPU load on a single bridge?

[Georg Koppen]

Gary C. New via tor-relays:
> David,
> Has Tor Metrics implemented your RFC related to Written Bytes per Second and Read Bytes per Second on Onionoo?

That's probably

https://gitlab.torproject.org/tpo/network-health/metrics/onionoo/-/issues/40022

, no?

Georg

> As of the 27th of February, I've noticed a change in reporting that accurately reflects the aggregate of my Tor Relay Nodes opposed to the previously reported Single Tor Node. Are you seeing a similar change for snowflake.torproject.org?
> Additionally, other than the hourly stacktrace errors in the syslog, the secure_onion_key workaround seems to be working well without any ill side-effects. I've been able to operate with the same secure_onion_key for close to 5 weeks, now. Have you run into any issues?
> Thank you for your response.
> Respectfully,
> 
> Gary—
> This Message Originated by the Sun.
> iBigBlue 63W Solar Array (~12 Hour Charge)
> + 2 x Charmast 26800mAh Power Banks
> = iPhone XS Max 512GB (~2 Weeks Charged)
> 
>      On Tuesday, February 8, 2022, 11:49:47 PM MST, Gary C. New via tor-relays <tor-relays at lists.torproject.org> wrote:
>   
>   David,
> Excellent Documentation and References!
> I hope the proposed RFC's (auth, key, and metrics) for loadbalanced Tor topologies are seriously considered and implemented by Tor Core and Tor Metrics.
> Great Work!
> Respectfully,
> 
> Gary—
> This Message Originated by the Sun.
> iBigBlue 63W Solar Array (~12 Hour Charge)
> + 2 x Charmast 26800mAh Power Banks
> = iPhone XS Max 512GB (~2 Weeks Charged)
> 
>      On Tuesday, February 8, 2022, 10:02:53 AM MST, David Fifield <david at bamsoftware.com> wrote:
>   
>   The load-balanced Snowflake bridge is running in production since
> 2022-01-31. Thanks Roger, Gary, Roman for your input.
> 
> Hopefully reproducible installation instructions:
>      https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Survival-Guides/Snowflake-Bridge-Installation-Guide?version_id=6de6facbb0fd047de978a561213c59224511445f
> Observations since:
>      https://bugs.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/40095#note_2774428
> 
> Metrics graphs are currently confused by multiple instances of tor
> uploading descriptors under the same fingerprint. Particularly in the
> interval between 2022-01-25 and 2022-02-03, when a production bridge and
> staging bridge were running in parallel, with four instances being used
> and another four being mostly unused.
>      https://metrics.torproject.org/rs.html#details/5481936581E23D2D178105D44DB6915AB06BFB7F
>      https://metrics.torproject.org/userstats-bridge-transport.html?start=2021-11-10&end=2022-02-08&transport=snowflake
> Since 2022-02-03, it appears that Metrics is showing only one of the
> four running instances per day. Because all four instances are about
> equally used (as if load balanced, go figure), the values on the graph
> are 1/4 what they should be. The reported bandwidth of 5 MB/s is
> actually 20 MB/s, and the 2500 clients are actually 10000. All the
> necessary data are present in Collector, it's just a question of data
> processing. I opened an issue for the Metrics graphs, where you can also
> see some manually made graphs that are closer to the true values.
>      https://bugs.torproject.org/tpo/network-health/metrics/onionoo/40022
> 
> I started a thread on tor-dev about the issues of onion key rotation and
> ExtORPort authentication.
>      https://lists.torproject.org/pipermail/tor-dev/2022-February/thread.html
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