Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
-+-
 Reporter:  asn  |  Owner:  (none)
 Type:  defect   | Status:
 |  needs_information
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  tor-hs, network-health, easy,|  Actual Points:
  hsdir, 040-deferred-20190220   |
Parent ID:   | Points:
 Reviewer:  asn  |Sponsor:
-+-
Changes (by neel):

 * status:  assigned => needs_information


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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
-+-
 Reporter:  asn  |  Owner:  (none)
 Type:  defect   | Status:
 |  assigned
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  tor-hs, network-health, easy,|  Actual Points:
  hsdir, 040-deferred-20190220   |
Parent ID:   | Points:
 Reviewer:  asn  |Sponsor:
-+-
Changes (by neel):

 * cc: neel@… (removed)
 * owner:  neel => (none)
 * status:  needs_information => assigned


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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  needs_information
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.6.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:  asn   |Sponsor:
--+
Changes (by dgoulet):

 * status:  merge_ready => needs_information


Comment:

 Currently stabilizing 035, lets wait a little bit before we do this
 change. For now, I think this is OK but #27436 is still lingering around.

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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  merge_ready
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.6.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:  asn   |Sponsor:
--+

Comment (by dgoulet):

 Agree with asn. Going to the 180 minutes line might be dicy considering
 some unresolved issues we have right now with descriptor being rejected by
 the HSDir.

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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  merge_ready
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.6.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:  asn   |Sponsor:
--+
Changes (by asn):

 * status:  needs_review => merge_ready
 * milestone:  Tor: 0.3.5.x-final => Tor: 0.3.6.x-final


Comment:

 Replying to [comment:3 neel]:
 > PR is here: https://github.com/torproject/tor/pull/303

 Thanks for the patch. LGTM.

 However, given that descriptor upload is still a bit unstable in v3
 (#25552 / #26980 / #27436) I'm considering whether we could perhaps keep
 the frequent upload schedule since it can save us from reliability issues
 if a single descriptor upload fails (like it happens in #26980 and
 #27436).

 Perhaps we can merge this in 036? Or later in 035, after we make sure we
 have killed all known descriptor upload issues?

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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  needs_review
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.5.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:  asn   |Sponsor:
--+

Comment (by asn):

 Replying to [comment:5 arma]:
 > Replying to [ticket:26769 asn]:
 > > HSDirs are supposed to cache HS descriptors for the inscribed lifetime
 (3 hours)
 >
 > Are there clock skew issues to worry about here? Like, an onion service
 whose clock is off by an hour, thus causing the hsdir to cache it for less
 time than we would otherwise expect?

 I don't think that's an issue because the lifetime field is the number of
 seconds after which the descriptor should expire; and not an absolute date
 string. So the lifetime says "3 hours" and HSDirs will hold it for 3 hours
 before expiring it, regardless of clock times.

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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  needs_review
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.5.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:  asn   |Sponsor:
--+
Changes (by asn):

 * reviewer:   => asn


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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  needs_review
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.5.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+

Comment (by arma):

 Replying to [ticket:26769 asn]:
 > HSDirs are supposed to cache HS descriptors for the inscribed lifetime
 (3 hours)

 Are there clock skew issues to worry about here? Like, an onion service
 whose clock is off by an hour, thus causing the hsdir to cache it for less
 time than we would otherwise expect?

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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:
  |  needs_review
 Priority:  Medium|  Milestone:  Tor:
  |  0.3.5.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+
Changes (by nickm):

 * status:  assigned => needs_review
 * milestone:  Tor: unspecified => Tor: 0.3.5.x-final


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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:  assigned
 Priority:  Medium|  Milestone:  Tor:
  |  unspecified
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+

Comment (by neel):

 PR is here: https://github.com/torproject/tor/pull/303

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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  neel
 Type:  defect| Status:  assigned
 Priority:  Medium|  Milestone:  Tor:
  |  unspecified
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+
Changes (by neel):

 * status:  new => assigned
 * cc: neel@… (added)
 * owner:  (none) => neel


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Re: [tor-bugs] #26769 [Core Tor/Tor]: We should make HSv3 desc upload less frequent

[Tor Bug Tracker & Wiki]

#26769: We should make HSv3 desc upload less frequent
--+
 Reporter:  asn   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  Medium|  Milestone:  Tor:
  |  unspecified
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tor-hs network-health easy hsdir  |  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+

Comment (by arma):

 Replying to [ticket:26769 asn]:
 > This makes HSv3s upload descriptors more frequently than needed. For
 example, we could increase this to upload descriptors between 2 and 2.9
 hours, to make HSv3s less intense on the network.

 The main reason v2 onion services uploaded so frequently (way more
 frequently than this) is to handle relays that restart (and thus discard
 all of their onion service descriptors) and relays that rotate into a spot
 in the hash ring that makes them now responsible for this onion address.

 I wonder how much churn there is in practice, as a function of our HSDir
 assignment algorithm.

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