Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by arma):

 I wonder if there are any other useful logs around then.

 For example, maybe your guard's microdescriptor expired, and during the
 period until you had fetched a new one, your Tor didn't want to make a
 circuit. (It's interesting that it says "Giving up launching '''first'''
 hop".)

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Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by dylanholand):

 Replying to [comment:3 asn]:

 > If this is something you can reproduce, can you please enable info or
 debug logs?
 \\
 I have not added info-level logs, hope it will help!

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Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by dylanholand):

 Here's part of the info-level log-file while this is happening. Let me
 know if there's anything else I can provide. Thanks a bunch!

 {{{
 #!div style="font-size: 70%"
   {{{
 Jul 02 10:30:58.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3682712543.
 Jul 02 10:30:58.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:58.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:30:58.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3839988605.
 Jul 02 10:30:58.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:58.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:30:58.000 [info]
 channelpadding_send_padding_cell_for_callback(): Sending netflow keepalive
 on 56 to [scrubbed] ([scrubbed]) after 6924 ms. Delta 2ms
 Jul 02 10:30:58.000 [info]
 channelpadding_send_padding_cell_for_callback(): Sending netflow keepalive
 on 95 to [scrubbed] ([scrubbed]) after 8529 ms. Delta 2ms
 Jul 02 10:30:59.000 [info] connection_edge_process_relay_cell(): 68: end
 cell (misc error) for stream 42650. Removing stream.
 Jul 02 10:30:59.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3682712543.
 Jul 02 10:30:59.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:59.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:30:59.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:59.000 [info] circuit_predict_and_launch_new(): Have 2 clean
 circs (0 internal), need another internal circ for my hidden service.
 Jul 02 10:30:59.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3682712543.
 Jul 02 10:30:59.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:59.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:30:59.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3682712543.
 Jul 02 10:30:59.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:59.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:30:59.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3839988605.
 Jul 02 10:30:59.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:30:59.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:31:00.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3682712543.
 Jul 02 10:31:00.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:31:00.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:31:00.000 [info] rend_service_receive_introduction(): Received
 INTRODUCE2 cell for service "" on circ 3682712543.
 Jul 02 10:31:00.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:31:00.000 [warn] Giving up launching first hop of circuit to
 rendezvous point [scrubbed] for service .
 Jul 02 10:31:00.000 [info] rep_hist_note_used_internal(): New port
 prediction added. Will continue predictive circ building for 2747 more
 seconds.
 Jul 02 10:31:00.000 [info] circuit_predict_and_launch_new(): Have 2 clean
 circs (0 internal), need another internal circ for my hidden service.
 Jul 02 10:31:00.000 [info] rend_service_receive_introduction(): 

Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by dylanholand):

 Replying to [comment:3 asn]:
 > Hmm the interesting log message here seems to be:
 > {{{
 >   newcirc =
 circuit_launch_by_extend_info(CIRCUIT_PURPOSE_S_CONNECT_REND,
 > oldstate->chosen_exit, flags);
 >
 >   if (!newcirc) {
 > log_warn(LD_REND,"Couldn't relaunch rendezvous circuit to '%s'.",
 >  safe_str(extend_info_describe(oldstate->chosen_exit)));
 > return;
 >   }
 > }}}
 >
 > Unfortunately without info or debug logs it's not possible to get deeper
 here :/
 >
 > If this is something you can reproduce, can you please enable info or
 debug logs?
 >
 > You might also want to try a more recent Tor version.
 >
 > This might be related to #30200, or maybe not.
 \\

 I have enabled info logging, and will update the ticket with more in-depth
 info once it happens again.

 Thank you for your time!

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Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by asn):

 Hmm the interesting log message here seems to be:
 {{{
   newcirc = circuit_launch_by_extend_info(CIRCUIT_PURPOSE_S_CONNECT_REND,
 oldstate->chosen_exit, flags);

   if (!newcirc) {
 log_warn(LD_REND,"Couldn't relaunch rendezvous circuit to '%s'.",
  safe_str(extend_info_describe(oldstate->chosen_exit)));
 return;
   }
 }}}

 Unfortunately without info or debug logs it's not possible to get deeper
 here :/

 If this is something you can reproduce, can you please enable info or
 debug logs?

 You might also want to try a more recent Tor version.

 This might be related to #30200, or maybe not.

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Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by dylanholand):

 Replying to [comment:1 teor]:
 > Is it a v2 or v3 onion service?
 It's a v2 service
 > You censored the address from your logs, and the onion service parts of
 your config, so I can't tell.
 >
 > I've also cc'd our onion services developers, who might be able to help
 more.
 Thank you!

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Re: [tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.3.5.8
 Severity:  Normal| Resolution:
 Keywords:  tor-hs|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--
Changes (by teor):

 * keywords:   => tor-hs
 * cc: asn, dgoulet (added)


Comment:

 Is it a v2 or v3 onion service?
 You censored the address from your logs, and the onion service parts of
 your config, so I can't tell.

 I've also cc'd our onion services developers, who might be able to help
 more.

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[tor-bugs] #31056 [Core Tor/Tor]: Hidden service sometimes unable to create circuit

[Tor Bug Tracker & Wiki]

#31056: Hidden service sometimes unable to create circuit
--+--
 Reporter:  dylanholand   |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  High  |  Component:  Core Tor/Tor
  Version:  Tor: 0.3.5.8  |   Severity:  Normal
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--
 I have a dedicated server with a few onoin-services on it. One of the
 services has some traffic to it and this service can't be reached a few
 times every day, lasting 5-15 minutes.

 While it's not available, the other onions is working just fine, it's just
 this particular .onion (which is the important one).

 The service is not of the kind that would get ddos'ed or similar, however,
 it can have some heavy peaks in traffic, which at some degree correlate
 with the unavailability. However, no server process is under heavy stress
 and other services, including other hidden services, is functioning
 normally)

 {{{
 #!div style="font-size: 80%"
 Server specs:
   {{{
 OS: CentOS/RHEL 7
 TOR: 0.3.5.8-1.el7

 torrc config:

 RunAsDaemon 1
 DataDirectory /var/lib/tor
 TransPort 9040
 TransListenAddress 127.0.0.1
 DNSPort 127.0.0.1:54
   }}}
 }}}


 {{{
 #!div style="font-size: 80%"
 A few lines from journalctl output, "xxx" is the onion that can't be
 reached:
   {{{
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Couldn't relaunch rendezvous circuit to '[scrubbed]'.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Couldn't relaunch rendezvous circuit to '[scrubbed]'.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
 [scrubbed] for service xxx.
 Tor[19172]: Giving up launching first hop of circuit to rendezvous point
   }}}
 }}}

 I have not found a similar issue in other tickets and it's very important
 that I can provide 100% uptime for this .onion.

 Many thanks for your time reading this, highly appreciated.

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