similar to: A barrage of unexplained timeouts

Hi, This morning, while checking for a correct deployment, we found out that the Unicorns we are using were sending 500 Internal errors very frequently to the HAProxy that sits in front of them. After some investigation, It turned out that HAProxy checks the backend by opening and closing a connection to the unicorn. Unfortunately the Unicorns we use ( v 0.990.0 ) will try to reply to this probe

Has anyone seen anything like this before? I can get it to happen all the time if I issue a HEAD request, but it only happens very intermittently on GET requests. I''m using Ruby 1.9.2p180. Any ideas on where to start debugging? 204.93.223.151, 10.195.114.81 - - [11/Aug/2011 21:03:50] "GET / HTTP/1.0" 200 37902 0.5316 app error: Content-Length header was 37902, but should be

Strange error which took down my server today: Unhandled listen loop exception #<Errno::EMFILE: Too many open files - accept>. /usr/local/ruby-enterprise-1.8.7-2010.01/lib/ruby/gems/1.8/gems/unicorn-3.3.1/lib/unicorn/http_server.rb:606:in `kgio_tryaccept'' /usr/local/ruby-enterprise-1.8.7-2010.01/lib/ruby/gems/1.8/gems/unicorn-3.3.1/lib/unicorn/http_server.rb:606:in

Hello all, I''m wondering if you deploy nginx: 1) on the same machine that runs unicorn (exclusively proxying to that) 2) on a different machine that doesn''t run unicorn 3) both, nginx could forward to either to localhost or another host on the same LAN And of course, the reason(s) you chose what you chose. I''m inclined to believe many folks are on 1) simply

Hello all, Last week, I finally decided to put into motion some ideas I''ve been kicking around for a year in my head since last year... Basically I don''t want to have to deal with threads or support platforms that rely on or encourage threads. Especially given MRI 1.9 where kernel threads are more difficult to debug than green ones. Given the limited scope of this project,

Hi, I''m serving the puppetmaster application with its config.ru through unicorn - proxied by nginx. I''m using unix sockets, 4 workers, and 2048 backlog. The clients - after their typical "puppet run" - send back a report to the master in YAML. Some clients whose reports tend to be large (close to 2mb) get a 502 bad gateway error and error out. nginx log: 2010/10/22

Hi, I''m wondering why SIGINT and SIGTERM both were chosen for the quick shutdown? I agree with SIGINT but not with SIGTERM. A lot of unix tools send SIGTERM as default (kill, runit among some) and it seems to be the standard way of telling a process to quit gracefully but not among Ruby people (there are a few other ruby processes behaving the same way). I just think it''s weird

Eric, think I came across an issue with the parser in unicorn, with a request (due to 2 layers of nginx proxying) coming across with both a X_FORWARDED_PROTO and a X-Forwarded-Proto header. From the socket (in HttpRequest) - we get: X_FORWARDED_PROTO: http X-Forwarded-Proto: https which is parsed to HTTP_X_FORWARDED_PROTO"=>"http,https There was a passenger ticket that

Hi, A couple days ago, I was trying to run Unicorn for Ramaze, and found that `Unicorn.run'' didn''t share the same interface with other Rack handlers, i.e. `options[:Host]'' and `options[:Port]'' Because of this, I can''t just use: Rack::Handler.register(''unicorn'', ''Unicorn'') And invoke this:

I''m getting the following errors multiple times per request when using 4.3.0. I do not receive any errors when using 4.2.1. Please CC me on replies, I''m not subscribed to the mailing list. 16:48:42 web.1 | E, [2012-04-26T16:48:42.733954 #87940] ERROR -- : app error: Socket is not connected (Errno::ENOTCONN) 16:48:42 web.1 | E, [2012-04-26T16:48:42.734193 #87940] ERROR

We''re using unicornctl restart with the default before/after hook behavior, which is to reap old Unicorn workers via SIGQUIT after the new one has finished booting. Unfortunately, while the new workers are forking and begin processing requests, we''re still seeing significant spikes in our haproxy request queue. It seems as if after we restart, the unwarmed workers get swamped by

IPv4 addresses started looking very ugly the first time I got IPv6 working on bogomips.org. In case somebody else can''t stand how IPv4-mapped-IPv6 addresses look, the workaround is to use two listeners and ensure the IPv6 one is ipv6only. Unicorn itself supports IPv6, too, but nobody uses/needs it. I''ll add :ipv6only support shortly (probably tomorrow). >From

Hi All, as I can see on https://github.com/defunkt/unicorn/blob/master/lib/unicorn.rb#L53 the?Rack::CommonLogger used only in development env and in weird evn called "deployment". Any chance to add "production" to this case? Serg Podtynnyi

I''ve setup nginx with this server { listen 80; server_name unicorn.local; location / { proxy_pass http://unicorn; } } upstream unicorn { server unix:/Users/mattmongeau/projects/test/unicorn/tmp/sockets/unicorn.sock; } When I run unicorn_rails -c config/unicorn.rb -E development I can access the application just fine on unicorn.local When I run unicorn_rails -c

Installing from RubyGems.org: gem install --pre unicorn >From db919d18e01f6b2339915cbd057fba9dc040988b Mon Sep 17 00:00:00 2001 From: Eric Wong <normalperson at yhbt.net> Date: Tue, 29 Jan 2013 21:02:55 +0000 Subject: [PATCH] unicorn 4.6.0pre1 - hijacking support This pre-release adds hijacking support for Rack 1.5 users. See Rack documentation for more information about hijacking.

I''ve been analyzing our Unicorn-powered Rails app''s performance, and have found that garbage collection is a big factor in slow requests. In the interest of avoiding those performance hits while handling requests, would it be possible to have a unicorn worker run garbage collection after handling a request and before waiting for the next one? Would this be a good idea? Cheers,

Changes: Rewindable "rack.input" may be disabled via the "rewindable_input false" directive in the configuration file. This will violate Rack::Lint for Rack 1.x applications, but can reduce I/O for applications that do not need a rewindable input. This release updates us to the Kgio 2.x series which should play more nicely with other libraries and applications. There are

Hi I''ve migrated from Passenger to Unicorn about a week ago. It''s great. Great transparency and management, thanks for this great software! A few of my Rails applications start background jobs using Kernel#fork. Of course, the ActiveRecord connections are closed and reopened again in the parent and child processes. The child process also does its job. Unfortunately, it seems

Hey guys, Started running unicorn in a production server like two weeks ago. It''s been running smoothly, but looking at the logs found 44 exceptions like this: E, [2010-06-02T16:17:15.117071 #22680] ERROR -- : Read error: #<TypeError: can''t modify frozen string> E, [2010-06-02T16:17:15.117270 #22680] ERROR -- :

If unicorn doesn''t get terminated cleanly (for example if the machine has its power interrupted) and the pid in the pidfile gets used by another process, the current unicorn code will exit and not start a server. This tiny patch fixes that behaviour. --- lib/unicorn/http_server.rb | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/unicorn/http_server.rb