我最近从4个轨道迁移到最新的5.1轨道(从瘦到puma服务器).我有一个不可重复的错误,我无法追踪它的来源.下面是一个示例应用程序回溯:
app/views/reports/_transaction_dialog.html.erb:88:in `_app_views_report=
s__transaction_dialog_html_erb___259516699_72100400'
app/views/reports/show.html.erb:40:in `block in _app_views_reports_show=
_html_erb___439575899_73388840'
app/views/reports/show.html.erb:38:in `_app_views_reports_show_html_erb=
___439575899_73388840'
app/controllers/application_controller.rb:52:in `block in select_shard'=
app/controllers/application_controller.rb:48:in `select_shard'
我知道它并没有多说......它只是一个部分渲染.它发生在代码的不同位置,但通常在app使用flipper来检查功能可用性的地方.这里_transaction_dialog.html.erb:88有:
<% if $flipper[:schooling].enabled? current_user %>
我会尝试将其报告给鳍状肢,但也许有人有其他想法？我使用章鱼进行数据库分片.Gemfile.lock如下:
GIT
remote: https://github.com/zquestz/omniauth-google-oauth2
revision: 605f483311a1885d87fa636791faba109ff37221
branch: master
specs:
omniauth-google-oauth2 (0.5.2)
jwt (~> 1.5)
omniauth (>= 1.1.1)
omniauth-oauth2 (>= 1.3.1)
GEM
remote: https://rubygems.org/
remote: https://rails-assets.org/
specs:
actioncable (5.1.4)
actionpack (= 5.1.4)
nio4r (~> 2.0)
websocket-driver (~> 0.6.1)
actionmailer (5.1.4)
actionpack (= 5.1.4)
actionview (= 5.1.4)
activejob (= 5.1.4)
mail (~> 2.5, >= 2.5.4)
rails-dom-testing (~> 2.0)
actionpack (5.1.4)
actionview (= 5.1.4)
activesupport (= 5.1.4)
rack (~> 2.0)
rack-test (>= 0.6.3)
rails-dom-testing (~> 2.0)
rails-html-sanitizer (~> 1.0, >= 1.0.2)
actionview (5.1.4)
activesupport (= 5.1.4)
builder (~> 3.1)
erubi (~> 1.4)
rails-dom-testing (~> 2.0)
rails-html-sanitizer (~> 1.0, >= 1.0.3)
activejob (5.1.4)
activesupport (= 5.1.4)
globalid (>= 0.3.6)
activemodel (5.1.4)
activesupport (= 5.1.4)
activerecord (5.1.4)
activemodel (= 5.1.4)
activesupport (= 5.1.4)
arel (~> 8.0)
activerecord-sqlserver-adapter (5.1.2)
activerecord (~> 5.1.0)
tiny_tds
activesupport (5.1.4)
concurrent-ruby (~> 1.0, >= 1.0.2)
i18n (~> 0.7)
minitest (~> 5.1)
tzinfo (~> 1.1)
addressable (2.5.2)
public_suffix (>= 2.0.2, < 4.0)
ar-octopus (0.9.1)
activerecord (>= 4.0.0)
activesupport (>= 4.0.0)
arel (8.0.0)
autoprefixer-rails (7.1.6)
execjs
axlsx (1.3.6)
htmlentities (~> 4.3.1)
nokogiri (>= 1.4.1)
rubyzip (>= 0.9.5)
bcrypt (3.1.11-x64-mingw32)
bcrypt (3.1.11-x86-mingw32)
bootstrap-sass (3.3.7)
autoprefixer-rails (>= 5.2.1)
sass (>= 3.3.4)
bootstrap_form (2.7.0)
builder (3.2.3)
byebug (9.1.0)
cmxl (0.2.0)
rchardet19
cocoon (1.2.11)
coffee-rails (4.2.2)
coffee-script (>= 2.2.0)
railties (>= 4.0.0)
coffee-script (2.4.1)
coffee-script-source
execjs
coffee-script-source (1.12.2)
concurrent-ruby (1.0.5)
crass (1.0.3)
declarative (0.0.10)
declarative-option (0.1.0)
devise (4.3.0)
bcrypt (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 4.1.0, < 5.2)
responders
warden (~> 1.2.3)
devise_ldap_authenticatable (0.8.5)
devise (>= 3.4.1)
net-ldap (>= 0.6.0, <= 0.11)
docx (0.2.07)
nokogiri (~> 1.5)
rubyzip (~> 1.1.6)
erubi (1.7.0)
erubis (2.7.0)
exception_notification (4.2.2)
actionmailer (>= 4.0, < 6)
activesupport (>= 4.0, < 6)
execjs (2.7.0)
faraday (0.12.2)
multipart-post (>= 1.2, < 3)
ffi (1.9.18-x64-mingw32)
ffi (1.9.18-x86-mingw32)
flipper (0.11.0)
flipper-ui (0.11.0)
erubis (~> 2.7.0)
flipper (~> 0.11.0)
rack (>= 1.4, < 3)
rack-protection (>= 1.5.3, < 2.1.0)
globalid (0.4.1)
activesupport (>= 4.2.0)
gmail (0.6.0)
gmail_xoauth (>= 0.3.0)
mail (>= 2.2.1)
gmail_xoauth (0.4.2)
oauth (>= 0.3.6)
google-api-client (0.17.3)
addressable (~> 2.5, >= 2.5.1)
googleauth (>= 0.5, < 0.7.0)
httpclient (>= 2.8.1, < 3.0)
mime-types (~> 3.0)
representable (~> 3.0)
retriable (>= 2.0, < 4.0)
googleauth (0.6.2)
faraday (~> 0.12)
jwt (>= 1.4, < 3.0)
logging (~> 2.0)
memoist (~> 0.12)
multi_json (~> 1.11)
os (~> 0.9)
signet (~> 0.7)
googlecharts (1.6.12)
hashie (3.5.6)
htmlentities (4.3.4)
httpclient (2.8.3)
i18n (0.9.1)
concurrent-ruby (~> 1.0)
jwt (1.5.6)
little-plugger (1.1.4)
logging (2.2.2)
little-plugger (~> 1.1)
multi_json (~> 1.10)
loofah (2.1.1)
crass (~> 1.0.2)
nokogiri (>= 1.5.9)
mail (2.7.0)
mini_mime (>= 0.1.1)
memoist (0.16.0)
method_source (0.9.0)
mime-types (3.1)
mime-types-data (~> 3.2015)
mime-types-data (3.2016.0521)
mini_mime (1.0.0)
mini_portile2 (2.3.0)
minitest (5.10.3)
money (6.10.0)
i18n (>= 0.6.4, < 1.0)
multi_json (1.12.2)
multi_logger (0.1.0)
railties
multi_xml (0.6.0)
multipart-post (2.0.0)
net-ldap (0.11)
nio4r (2.1.0)
nokogiri (1.8.1-x64-mingw32)
mini_portile2 (~> 2.3.0)
nokogiri (1.8.1-x86-mingw32)
mini_portile2 (~> 2.3.0)
oauth (0.5.3)
oauth2 (1.4.0)
faraday (>= 0.8, < 0.13)
jwt (~> 1.0)
multi_json (~> 1.3)
multi_xml (~> 0.5)
rack (>= 1.2, < 3)
omniauth (1.7.1)
hashie (>= 3.4.6, < 3.6.0)
rack (>= 1.6.2, < 3)
omniauth-oauth2 (1.4.0)
oauth2 (~> 1.0)
omniauth (~> 1.2)
orm_adapter (0.5.0)
os (0.9.6)
public_suffix (3.0.1)
puma (3.11.0)
rack (2.0.3)
rack-protection (2.0.0)
rack
rack-test (0.8.2)
rack (>= 1.0, < 3)
rails (5.1.4)
actioncable (= 5.1.4)
actionmailer (= 5.1.4)
actionpack (= 5.1.4)
actionview (= 5.1.4)
activejob (= 5.1.4)
activemodel (= 5.1.4)
activerecord (= 5.1.4)
activesupport (= 5.1.4)
bundler (>= 1.3.0)
railties (= 5.1.4)
sprockets-rails (>= 2.0.0)
rails-assets-fullcalendar (3.7.0)
rails-assets-jquery (>= 2, < 4)
rails-assets-moment (>= 2.9.0, < 3)
rails-assets-fullcalendar-scheduler (1.9.0)
rails-assets-fullcalendar (~> 3.7.0)
rails-assets-jquery (>= 2, < 4)
rails-assets-moment (>= 2.9.0, < 3)
rails-assets-jquery (3.2.1)
rails-assets-jquery-ui (1.12.1)
rails-assets-jquery (>= 1.6)
rails-assets-jquery-ujs (1.2.2)
rails-assets-jquery (> 1.8)
rails-assets-jqueryui-timepicker-addon (1.6.3)
rails-assets-js-cookie (2.2.0)
rails-assets-lightbox (2.10.0)
rails-assets-jquery (> 2)
rails-assets-moment (2.19.3)
rails-dom-testing (2.0.3)
activesupport (>= 4.2.0)
nokogiri (>= 1.6)
rails-html-sanitizer (1.0.3)
loofah (~> 2.0)
railties (5.1.4)
actionpack (= 5.1.4)
activesupport (= 5.1.4)
method_source
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (12.3.0)
rb-fsevent (0.10.2)
rb-inotify (0.9.10)
ffi (>= 0.5.0, < 2)
rchardet19 (1.3.7)
representable (3.0.4)
declarative (< 0.1.0)
declarative-option (< 0.2.0)
uber (< 0.2.0)
responders (2.4.0)
actionpack (>= 4.2.0, < 5.3)
railties (>= 4.2.0, < 5.3)
retriable (3.1.1)
ruby-oci8 (2.2.5-x64-mingw32)
ruby-oci8 (2.2.5-x86-mingw32)
rubyzip (1.1.7)
sass (3.5.3)
sass-listen (~> 4.0.0)
sass-listen (4.0.0)
rb-fsevent (~> 0.9, >= 0.9.4)
rb-inotify (~> 0.9, >= 0.9.7)
sass-rails (5.0.7)
railties (>= 4.0.0, < 6)
sass (~> 3.1)
sprockets (>= 2.8, < 4.0)
sprockets-rails (>= 2.0, < 4.0)
tilt (>= 1.1, < 3)
signet (0.8.1)
addressable (~> 2.3)
faraday (~> 0.9)
jwt (>= 1.5, < 3.0)
multi_json (~> 1.10)
sprockets (3.7.1)
concurrent-ruby (~> 1.0)
rack (> 1, < 3)
sprockets-rails (3.2.1)
actionpack (>= 4.0)
activesupport (>= 4.0)
sprockets (>= 3.0.0)
sqlite3 (1.3.13-x64-mingw32)
sqlite3 (1.3.13-x86-mingw32)
thor (0.20.0)
thread_safe (0.3.6)
tilt (2.0.8)
tiny_tds (2.1.0-x64-mingw32)
tiny_tds (2.1.0-x86-mingw32)
tzinfo (1.2.4)
thread_safe (~> 0.1)
tzinfo-data (1.2017.3)
tzinfo (>= 1.0.0)
uber (0.1.0)
uglifier (3.2.0)
execjs (>= 0.3.0, < 3)
warden (1.2.7)
rack (>= 1.0)
websocket-driver (0.6.5)
websocket-extensions (>= 0.1.0)
websocket-extensions (0.1.3)
zip (2.0.2)
PLATFORMS
x64-mingw32
x86-mingw32
DEPENDENCIES
activerecord-sqlserver-adapter
ar-octopus
axlsx
bootstrap-sass
bootstrap_form
byebug
cmxl
cocoon
coffee-rails
devise
devise_ldap_authenticatable
docx
exception_notification
flipper
flipper-ui
gmail
google-api-client
googleauth
googlecharts
money
multi_logger
omniauth-google-oauth2!
puma
rails
rails-assets-fullcalendar!
rails-assets-fullcalendar-scheduler!
rails-assets-jquery!
rails-assets-jquery-ui!
rails-assets-jquery-ujs!
rails-assets-jqueryui-timepicker-addon!
rails-assets-js-cookie!
rails-assets-lightbox!
ruby-oci8
sass-rails
sqlite3
tiny_tds
tzinfo-data
uglifier
zip
BUNDLED WITH
1.16.0
这是我在nginx日志中看到的:
10.86.12.240 - - [27/Dec/2017:13:44:12 +0000] "GET / HTTP/2.0" 200 5589 "-" "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36"
10.86.12.240 - - [27/Dec/2017:13:44:18 +0000] "GET /reports/3576 HTTP/2.0" 499 0 "https://quick.roche.com/" "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36"
10.86.12.240 - - [27/Dec/2017:13:44:19 +0000] "GET /reports/3576 HTTP/2.0" 200 7802 "https://quick.roche.com/" "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36"
成功(http status = 200)请求初始页面,然后是499和200
499是什么让我在rails堆栈中出错
this is what I have in rails logs for those last two requests:
I, [2017-12-27T13:44:18.744420 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Started GET "/reports/3576" for 127.0.0.1 at 2017-12-27 13:44:18 +0000
I, [2017-12-27T13:44:18.744420 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Processing by ReportsController#show as HTML
I, [2017-12-27T13:44:18.744420 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Parameters: {"id"=>"3576"}
D, [2017-12-27T13:44:18.744420 #1760] DEBUG -- : [1226f679-086e-4699-a6de-cab43006d58d] [1m[32m[Shard: ir][0m [1m[36mUser Load (0.0ms)[0m [1m[35mEXEC sp_executesql N'SELECT [users].* FROM [users] WHERE [users].[login] = @0 ORDER BY name ASC OFFSET 0 ROWS FETCH NEXT @1 ROWS ONLY', N'@0 varchar(8), @1 int', @0 = 'sh', @1 = 1[0m [["login", nil], ["LIMIT", nil]]
D, [2017-12-27T13:44:18.744420 #1760] DEBUG -- : [1226f679-086e-4699-a6de-cab43006d58d] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (0.0ms)[0m [1m[35mEXEC Delegators @ToolName = N'WebT&E', @user = N'sh', @permission = N'% REPORT'[0m
I, [2017-12-27T13:44:18.869223 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Started GET "/reports/3576" for 127.0.0.1 at 2017-12-27 13:44:18 +0000
I, [2017-12-27T13:44:18.869223 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Processing by ReportsController#show as HTML
I, [2017-12-27T13:44:18.869223 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Parameters: {"id"=>"3576"}
D, [2017-12-27T13:44:18.869223 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mUser Load (0.0ms)[0m [1m[35mEXEC sp_executesql N'SELECT [users].* FROM [users] WHERE [users].[login] = @0 ORDER BY name ASC OFFSET 0 ROWS FETCH NEXT @1 ROWS ONLY', N'@0 varchar(8), @1 int', @0 = 'sh', @1 = 1[0m [["login", nil], ["LIMIT", nil]]
D, [2017-12-27T13:44:18.869223 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (0.0ms)[0m [1m[35mEXEC Delegators @ToolName = N'WebT&E', @user = N'sh', @permission = N'% REPORT'[0m
D, [2017-12-27T13:44:19.212432 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (343.2ms)[0m [1m[35mEXEC GetParameters @ToolName = N'WebT&E', @user = N'sh', @user_direct = N'sh', @report_id = N'3576'[0m
D, [2017-12-27T13:44:19.212432 #1760] DEBUG -- : [1226f679-086e-4699-a6de-cab43006d58d] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (468.0ms)[0m [1m[35mEXEC GetParameters @ToolName = N'WebT&E', @user = N'sh', @user_direct = N'sh', @report_id = N'3576'[0m
D, [2017-12-27T13:44:19.212432 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mUser Load (0.0ms)[0m [1m[35mEXEC sp_executesql N'SELECT [users].* FROM [users] WHERE [users].[login] = @0 ORDER BY name ASC OFFSET 0 ROWS FETCH NEXT @1 ROWS ONLY', N'@0 varchar(8), @1 int', @0 = 'mp', @1 = 1[0m [["login", nil], ["LIMIT", nil]]
I, [2017-12-27T13:44:19.212432 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendering reports/show.html.erb within layouts/application
D, [2017-12-27T13:44:19.212432 #1760] DEBUG -- : [1226f679-086e-4699-a6de-cab43006d58d] [1m[32m[Shard: ir][0m [1m[36mUser Load (0.0ms)[0m [1m[35mEXEC sp_executesql N'SELECT [users].* FROM [users] WHERE [users].[login] = @0 ORDER BY name ASC OFFSET 0 ROWS FETCH NEXT @1 ROWS ONLY', N'@0 varchar(8), @1 int', @0 = 'mp', @1 = 1[0m [["login", nil], ["LIMIT", nil]]
I, [2017-12-27T13:44:19.212432 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendering reports/show.html.erb within layouts/application
D, [2017-12-27T13:44:19.228033 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mComment Load (15.6ms)[0m [1m[34mSELECT [comments].* FROM [comments] WHERE (entity='Report' AND entity_id=N'3576')[0m
D, [2017-12-27T13:44:19.228033 #1760] DEBUG -- : [1226f679-086e-4699-a6de-cab43006d58d] [1m[32m[Shard: ir][0m [1m[36mComment Load (15.6ms)[0m [1m[34mSELECT [comments].* FROM [comments] WHERE (entity='Report' AND entity_id=N'3576')[0m
I, [2017-12-27T13:44:19.243633 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered reports/_transactions.html.erb (15.6ms)
I, [2017-12-27T13:44:19.243633 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/_transactions.html.erb (15.6ms)
I, [2017-12-27T13:44:19.243633 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered reports/_summary.html.erb (31.2ms)
I, [2017-12-27T13:44:19.243633 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/_summary.html.erb (31.2ms)
I, [2017-12-27T13:44:19.243633 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered reports/show.html.erb within layouts/application (31.2ms)
I, [2017-12-27T13:44:19.243633 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Completed 500 Internal Server Error in 499ms (ActiveRecord: 483.6ms)
I, [2017-12-27T13:44:19.259233 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendering F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/exception_notification.text.erb
I, [2017-12-27T13:44:19.274834 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_request.text.erb (0.0ms)
D, [2017-12-27T13:44:19.274834 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (31.2ms)[0m [1m[35mEXEC account_groups @user = N'mp'[0m
I, [2017-12-27T13:44:19.290434 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.0ms)
I, [2017-12-27T13:44:19.290434 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_session.text.erb (0.0ms)
I, [2017-12-27T13:44:19.290434 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.0ms)
I, [2017-12-27T13:44:19.306035 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_environment.text.erb (0.0ms)
D, [2017-12-27T13:44:19.306035 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (15.6ms)[0m [1m[35mEXEC accounts_for @user = N'mp', @group = N'Travel'[0m
I, [2017-12-27T13:44:19.306035 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.0ms)
I, [2017-12-27T13:44:19.306035 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_backtrace.text.erb (0.0ms)
I, [2017-12-27T13:44:19.306035 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.0ms)
I, [2017-12-27T13:44:19.306035 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Rendered F:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/exception_notification-4.2.2/lib/exception_notifier/views/exception_notifier/exception_notification.text.erb (46.8ms)
D, [2017-12-27T13:44:19.306035 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (0.0ms)[0m [1m[35mEXEC accounts_for @user = N'mp', @group = N'Congress'[0m
D, [2017-12-27T13:44:19.306035 #1760] DEBUG -- : [1226f679-086e-4699-a6de-cab43006d58d] #exception_notification: processed outbound mail in 62.4ms
D, [2017-12-27T13:44:19.321635 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (15.6ms)[0m [1m[35mEXEC accounts_for @user = N'mp', @group = N'Other'[0m
D, [2017-12-27T13:44:19.399637 #1760] DEBUG -- : [9817073b-8d80-4516-ba8d-040e223d1502] [1m[32m[Shard: ir][0m [1m[36mExecute Procedure (78.0ms)[0m [1m[35mEXEC UnreportedRequests @ToolName = N'WebT&E', @user = N'mp', @ReportId = 3576[0m
I, [2017-12-27T13:44:19.399637 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/_transaction_dialog.html.erb (156.0ms)
I, [2017-12-27T13:44:19.399637 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/_split_dialog.html.erb (0.0ms)
I, [2017-12-27T13:44:19.399637 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/_travel_dialog.html.erb (0.0ms)
I, [2017-12-27T13:44:19.399637 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/_additionals_dialog.html.erb (0.0ms)
I, [2017-12-27T13:44:19.399637 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Rendered reports/show.html.erb within layouts/application (187.2ms)
I, [2017-12-27T13:44:19.399637 #1760] INFO -- : [9817073b-8d80-4516-ba8d-040e223d1502] Completed 200 OK in 530ms (Views: 36.4ms | ActiveRecord: 499.2ms)
I, [2017-12-27T13:44:19.477639 #1760] INFO -- : [1226f679-086e-4699-a6de-cab43006d58d] Sent mail to krzysztof.chodak@... (171.6ms)
It looks to me like there were two the same requests and one of them has failed with 'nested transaction' error from ActiveRecord (is it AR? class of the error actually is ActionView::Template::Error)...
I do not see any "nested transaction" in rails source...
First question is why there are two requests in rails from the same client and almost the same second?
Second question is why such parallel requests do fail?
I have searched all my gem sources for "nested transaction" and I do not see it - I am not able to locate the code raising this error :(
我终于能够在开发中重现此错误：我双击一个链接，导致两个几乎同时发生的请求。实际的“嵌套事务”错误来自 Flipper 的 PStore。
解决方案：
通过使用 $flipper.preload([]) 和功能名称数组并在 PStore 上添加 5 分钟 ActiveSupportCacheStore 缓存，减少 Flipper 功能调用的数量
禁用连续链接的使用
有待检查它在生产中是否有效，但开发测试看起来很有希望。
更新 1：它只是减少错误数量 - PStore 上的线程安全选项需要通过修补 Flipper 来启用
更新2： https: //github.com/jnunemaker/flipper/pull/334
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