Stochastic Guard Flag

[anon]

Stochastic Guard Flag symptom and the subsequent interruption of optimal contribution to the network.

Tracking issue with some relays in family randomly losing Guard in consensus, and experiencing other low bandwidth situations sporadically.

# Not affected (always Guard once Guard):

• Mozilla14 , 209.119.188.42_p80 , globe.torproject.org/#/relay/12259E0A607EE888B23FBFA613C2F99E32408445
• Mozilla4 , 209.119.188.39_p443 , globe.torproject.org/#/relay/629B222746E76B1D531969187EDB9397DEC00838

# Randomish Guard loss affected:

• Mozilla13 , 209.119.188.42_p9090 , globe.torproject.org/#/relay/95AC12EEFD2F89DBE4185E6B5B29ED0CAA5FFFE2
• Mozilla12 , 209.119.188.41_p9090 , globe.torproject.org/#/relay/4DECCBA05C87BF208EA77C81B0BB1278B063884E
• Mozilla11 , 209.119.188.41_p443 , globe.torproject.org/#/relay/07931503E96CBC4284EC04534D586FE63DB70992
• Mozilla10 , 209.119.188.38_p9090 , globe.torproject.org/#/relay/BB1936B7D4F092CE83AE8590CAA07F7B56A7DF1B
• Mozilla9 , 209.119.188.38_p443 , globe.torproject.org/#/relay/57791ADDC8A775A546A2AA8F327C1D2647990162
• Mozilla6 , 209.119.188.40_p443 , globe.torproject.org/#/relay/9B0481C293B26E02994711046798D3D76A126F2E
• Mozilla5 , 209.119.188.40_p9090 , globe.torproject.org/#/relay/C7E8746FE94A8318693F4EA81800149AA6A201C6
• Mozilla2 , 209.119.188.37_p9090 , globe.torproject.org/#/relay/FD3BC0BEA5F73680E6F9F3BAC762160231DC3DB5

Note about traffic graphs when not-Guard: the middle relays appear to be handling plenty of capacity; some delta between usage in Guard or not is based on this type difference. Consider mean consensus weight fraction along with guard / middle probabilities.

Will update once consensus history is reviewed in detail for the period in question...

[anon]

another report of possibly related behavior:
<martingale> can someone help me troubleshoot why my relay is so slow? been running ~30 days with one reset, i'm averaging about 3Mbps, never been above 10Mbps. I'm on a 1000Mbps connection. this was not a sudden drop when i got the guard flag. in fact, i didn't notice any change in bandwidth when i got the guard flag (since lost again). restarted only once, two days ago.

see globe.torproject.org/#/relay/18EAAF7CB6C2ABE8583841D305C06A509F8C1C82

[anon]

specific status votes for each relay are available at freehaven.net/~arma/moria1-v3-status-votes (e.g. which auths voted Guard, Stable, Fast for relay...)

[nickm]

Marking more tickets as triaged-in for 0.2.7

[nickm]

Bulk-replace SponsorU keyword with SponsorU field.

[nickm]

It is impossible that we will fix all 252 currently open 028 tickets before 028 releases. Time to move some out. This is my first pass through the "assigned" tickets with no owner, looking for things to move to ???.

If somebody thinks they can get these done before the 0.2.8 timeout, please assign it to yourself and move it back?

[nickm]

Remove the SponsorU status from these items, which we already decided to defer from 0.2.9. add the SponsorU-deferred tag instead in case we ever want to remember which ones these were.

[teor]

Milestone renamed

[nickm]

Finally admitting that 0.3.??? was a euphemism for Tor: unspecified all along.

[nickm]

Remove an old triaging keyword.

[nickm]

Change the status of all assigned/accepted Tor tickets with owner="" to "new".