[ruby-core:81670] [Ruby trunk Bug#11033] OpenSSL related threading issues in Ruby 2.1 and 2.2

[ethan_j_brown@hotmail.com]

Issue #11033 has been updated by Iristyle (Ethan Brown).


Also seeing this issue crop up in AppVeyor - specifically under Ruby 2.4 testing.  We haven't seen this in previous Ruby builds (not that RubyInstaller changed how Ruby is built in the 2.4 installers).

Such an example is at https://ci.appveyor.com/project/puppetlabs/puppet/build/4.1.0.5694/job/jkk5rbf49ou92yc8

----------------------------------------
Bug #11033: OpenSSL related threading issues in Ruby 2.1 and 2.2
https://bugs.ruby-lang.org/issues/11033#change-65361

* Author: tknerr (Torben Knerr)
* Status: Open
* Priority: Normal
* Assignee: openssl
* Target version: 
* ruby -v: 2.1.5p273, 2.2.1p85
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
I'm experiencing some problems with multiple https connections in Ruby 2.1 and 2.2, whilst in Ruby 2.0 everything is working fine.

This happens on a Windows 7 (64-bit) box in the context of installing multiple gems in parallel via bundlers `BUNDLE_JOBS=<n>` setting. 

What I see are multiple `OpenSSL::SSL::SSLError: SSL_read: cert already in hash table` warnings and at some more or less random point it bails out because it cannot install a gem. When I repeat the `bundle install` command it will get past that gem and fail at a later one. I can repeat until all gems are installed.

This is the stacktrace I get for every of the ssl warnings:
```
...
Installing polyglot 0.3.5
4:  polyglot (0.3.5) from X:/home/.gem/ruby/2.2.0/specifications/polyglot-0.3.5.gemspec

OpenSSL::SSL::SSLError: SSL_read: cert already in hash table
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/openssl/buffering.rb:182:in `sysread_nonblock'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/openssl/buffering.rb:182:in `read_nonblock'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/protocol.rb:153:in `rbuf_fill'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/protocol.rb:134:in `readuntil'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/protocol.rb:144:in `readline'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/http/response.rb:39:in `read_status_line'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/http/response.rb:28:in `read_new'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/http.rb:1414:in `block in transport_request'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/http.rb:1411:in `catch'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/http.rb:1411:in `transport_request'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/net/http.rb:1384:in `request'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/request.rb:154:in `perform_request'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/request.rb:109:in `fetch'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/remote_fetcher.rb:346:in `request'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/remote_fetcher.rb:231:in `fetch_http'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/remote_fetcher.rb:247:in `fetch_http'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/remote_fetcher.rb:267:in `fetch_path'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/remote_fetcher.rb:302:in `cache_update_path'
X:/tools/ruby-2.2.1/lib/ruby/2.2.0/rubygems/remote_fetcher.rb:168:in `download'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/rubygems_integration.rb:544:in `download_gem'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/fetcher.rb:63:in `download_gem_from_uri'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/source/rubygems.rb:370:in `fetch_gem'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/source/rubygems.rb:98:in `install'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/installer.rb:107:in `install_gem_from_spec'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/installer.rb:287:in `block in install_in_parallel'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/worker.rb:55:in `call'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/worker.rb:55:in `apply_func'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/worker.rb:50:in `block in process_queue'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/worker.rb:47:in `loop'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/worker.rb:47:in `process_queue'
X:/tools/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/bundler-1.9.2/lib/bundler/worker.rb:22:in `block (2 levels) in initialize'
...
```

This is originally reported here (with a bit more details):
https://github.com/bundler/bundler/issues/3545

Any ideas?

Might it be a regression of #8386?



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