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Re: [tor-bugs] #4486 [Analysis]: Research: should N23 actually help in practice?
#4486: Research: should N23 actually help in practice?
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Reporter: arma | Owner: robgjansen
Type: task | Status: needs_information
Priority: normal | Milestone:
Component: Analysis | Version:
Keywords: performance flowcontrol | Parent: #4506
Points: | Actualpoints:
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Comment(by karsten):
Replying to [comment:28 karsten]:
> Replying to [comment:27 arma]:
> > Karsten, if you're looking for more sims to run, this is a good one.
You can run it with default config as a baseline (UseN23 defaults to 0).
>
> I just started this simulation with the default value for UseN23.
I'm running into a problem, but it seems that master is to blame here, not
the n23-4 branch. There's something wrong with bootstrapping. None of
the relays or clients manage to download an up-to-date consensus and relay
descriptors, and only 76 of the 100 exits (and interestingly, none of the
non-exits or clients) manage to get the very first consensus published at
00:05:00. I stared at the scallion.log files for a bit, but couldn't see
an obvious reason for the problem. I uploaded Shadow's data directories
for the [https://people.torproject.org/~karsten/volatile/large-n23-4
-vanilla-data.tar.bz2 n23-4] and the
[https://people.torproject.org/~karsten/volatile/large-master-
vanilla.tar.bz2 master] simulation (6.2M each). I could change the log
level to info or debug if someone wants to look at those logs, and I could
manually bisect Tor versions to see when Shadow started being unhappy.
Not sure if it's relevant, but I had to tweak `src/library/scallion
/scallion-tor.c` to use `idkey = client_identitykey` instead of `idkey =
identitykey` to make Shadow compile.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4486#comment:29>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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