[tor-bugs] #28269 [Core Tor/Tor]: Repeated HSFETCH queries fail with QUERY_NO_HSDIR

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#28269: Repeated HSFETCH queries fail with QUERY_NO_HSDIR
------------------------------+--------------------
     Reporter:  atagar        |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------
 Hi lovely network team. Iain is working on a script to inform him of
 hidden service descriptor age. He's using stem to fetch them but
 unfortunately after a few HSFETCH calls it begins to fail with
 QUERY_NO_HSDIR. Maybe some attempt at rate limiting? Once the tor process
 gets into a borked state it doesn't seem to recover until I bounce the tor
 process.

 Here's an example of my first query (which succeeds)...

 {{{
 >>> SETEVENTS HS_DESC HS_DESC_CONTENT
 250 OK

 >>> HSFETCH facebookcorewwwi
 250 OK

 >>> /events
 HS_DESC_CONTENT facebookcorewwwi 3jjxhgi72xguhnihk4nwzrcpyvwf3ml5
 $DA722ECCB9C0DE462C4FA585B93C99CCCA1C7547~SIRDRAKE2018
 rendezvous-service-descriptor 3jjxhgi72xguhnihk4nwzrcpyvwf3ml5
 version 2
 permanent-key
 -----BEGIN RSA PUBLIC KEY-----
 MIGJAoGBALfng/krEfrBcvblDiM3PAkowkiAKxLoTsXt3nPEzyTP6Cw+Gdr0ODje
 hmxTngN1pKiH7szk4Q1p2RabOrUHWwXmGXeDDNs00fcyU6HupgqsCoKOqCsmPac6
 /58apC64A7xHeS02wtfWJp6qiZ8i6GGu6xWXRWux+ShPgcHvkajRAgMahU8=
 -----END RSA PUBLIC KEY-----
 secret-id-part wuyfue4erz2hlh4d5o4kduweosco6rw4
 publication-time 2018-10-31 18:00:00
 protocol-versions 2,3
 introduction-points
 -----BEGIN MESSAGE-----
 aW50cm9kdWN0aW9uLXBvaW50IHR6c3U3ZXh5amVlZWU2cm92cDd1Z25lM3pxemlo
 ZHk1CmlwLWFkZHJlc3MgMTQ0Ljc2Ljk2LjYKb25pb24tcG9ydCA5MDAxCm9uaW9u
 ... lot more base64...
 L1UycythTGNtYmhITGJPWlhZRjRMcERTV1R3THkwb0ZzTEFnTUJBQUU9Ci0tLS0t
 RU5EIFJTQSBQVUJMSUMgS0VZLS0tLS0KCg==
 -----END MESSAGE-----
 signature
 -----BEGIN SIGNATURE-----
 cMLWu42NG+I5hH9QAHZUQ8eDGCUzcny/uN/FwAYiLsUSc3QLg7MKbRTZ3v2ARonB
 wcUgEAGpO4wDjuEj2ivNmpt6U0smJ7nM5KTWy4l0732QnTeSEX+P53qIJ7KwxDro
 +JyBARfK4orCMieHuxYtJop6YgVRQ8XN6NtP6NiDrWY=
 -----END SIGNATURE-----
 OK
 HS_DESC RECEIVED facebookcorewwwi NO_AUTH
 $DA722ECCB9C0DE462C4FA585B93C99CCCA1C7547~SIRDRAKE2018
 3jjxhgi72xguhnihk4nwzrcpyvwf3ml5
 HS_DESC REQUESTED facebookcorewwwi NO_AUTH
 $DA722ECCB9C0DE462C4FA585B93C99CCCA1C7547~SIRDRAKE2018
 3jjxhgi72xguhnihk4nwzrcpyvwf3ml5
 }}}

 ... and here's an example of my fourth onward, which always fail.

 {{{
 >>> /events clear
 cleared event backlog

 >>> HSFETCH facebookcorewwwi
 250 OK

 >>> /events
 HS_DESC_CONTENT facebookcorewwwi 3jjxhgi72xguhnihk4nwzrcpyvwf3ml5 UNKNOWN

 OK
 HS_DESC FAILED facebookcorewwwi NO_AUTH UNKNOWN REASON=QUERY_NO_HSDIR
 HS_DESC_CONTENT facebookcorewwwi csq76xfzmtyepzmkhzz2lb7ja3vmylwu UNKNOWN

 OK
 HS_DESC FAILED facebookcorewwwi NO_AUTH UNKNOWN REASON=QUERY_NO_HSDIR
 }}}

 I'm filing this on irl's behalf. If anything's needed from me on the stem
 front just let me know.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28269>
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