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Re: [tor-bugs] #31889 [Circumvention/Snowflake]: Rebuild and redeploy broker and bridge using Go 1.12.10+ / 1.13.1+



#31889: Rebuild and redeploy broker and bridge using Go 1.12.10+ / 1.13.1+
-------------------------------------+------------------------------
 Reporter:  dcf                      |          Owner:  (none)
     Type:  defect                   |         Status:  needs_review
 Priority:  Medium                   |      Milestone:
Component:  Circumvention/Snowflake  |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:                           |  Actual Points:
Parent ID:                           |         Points:
 Reviewer:                           |        Sponsor:
-------------------------------------+------------------------------
Changes (by cohosh):

 * status:  new => needs_review


Comment:

 I just updated both the snowflake broker and bridge using Go version
 1.12.10.

 This also deploys the changes in #30830. On restarting, I saw what I
 thought was an unusual amount of TLS errors at the broker after update:
 {{{
 2019/10/11 14:24:52 http2: server: error reading preface from client
 [scrubbed]: read tcp [scrubbed]->[scrubbed]: read: connection reset by
 peer
 2019/10/11 14:24:53 http2: server: error reading preface from client
 [scrubbed]: read tcp [scrubbed]->[scrubbed]: read: connection reset by
 peer
 2019/10/11 14:24:55 http2: server: error reading preface from client
 [scrubbed]: read tcp [scrubbed]->[scrubbed]: read: connection reset by
 peer
 2019/10/11 14:24:57 http: TLS handshake error from [scrubbed]: EOF
 2019/10/11 14:24:57 http: TLS handshake error from [scrubbed]: EOF
 2019/10/11 14:24:58 http2: server: error reading preface from client
 [scrubbed]: read tcp [scrubbed]->[scrubbed]: read: connection reset by
 peer
 2019/10/11 14:25:03 http2: received GOAWAY [FrameHeader GOAWAY len=8],
 starting graceful shutdown
 }}}

 But after restarting with the old broker version again, it looks like
 about the same amount we were getting, just the errors weren't being
 drowned out by other messages in the logs.

 I did confirm that I can bootstrap a full client connection with the new
 versions of the both bridge and broker.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31889#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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