[Capistrano] Re: strange problem when deploying via :copy

[Jamis Buck]

Yeah, I remembered that setting after I replied to your email. It's a hack, but it works. It is something to do with threads, which is why I'm hopeful the new Net::SSH will fix it (since the new Net::SSH doesn't use threads to poll).

- Jamis

On Sep 26, 2007, at 12:43 PM, wolfmanjm wrote:

Hey Jamis, that worked for my hanging put problem! doesn't hang
anymore.

On Sep 26, 9:24 am, Jamis Buck <[EMAIL PROTECTED]> wrote:

Yeah, I strongly suspect you're being bitten by a put bug, which I've
never been able to duplicate, but which I strong suspect is related
to some bad design decisions in Net::SSH and Net::SFTP. I'm very
hopeful that the new Net::SSH and Net::SFTP rewrites will help
this...but that doesn't help you right now.

What if you do this at the top of your deploy.rb:

   set :synchronous_connect, true

That flag was added to help some people who reported the upload-
hanging issue, and it seemed to work in some cases.

- Jamis

On Sep 26, 2007, at 10:16 AM, Jon Rosebaugh wrote:

On 9/26/07, Jamis Buck <[EMAIL PROTECTED]> wrote:

I suspect you're being bitten by the "put bug" (which is really a bug in Net::SSH somewhere). Do you have a gateway configured in your cap

recipes anywhere?

Nope, here is our complete cap setup, with urls altered for privacy:

I deploy by running cap <target> deploy. e.g., "cap public deploy" for

public server, which is where we're having the problem.

Capfile:
load 'deploy' if respond_to?(:namespace) # cap2 differentiator
require 'lib/extensions/mongrel_recipes'
load 'config/deploy'

config/deploy.rb:
set :application, "nexus"
set :repository, "http://svn/project_repository/branches/0.5";
set :deploy_via, :checkout
set :user, "deploy"
set(:mongrel_conf) { "#{current_path}/config/mongrel_cluster.yml" }
set(:deploy_to) { "/u/apps/#{application}"}

task :build do
  role :web, "buildserver"
  role :app, "buildserver"
  role :db, "buildserver"
  set :application, "nexus_build"
  set :repository, "http://svn/project_repository/trunk/";
  set :mongrel_conf, "#{current_path}/config/
mongrel_build_cluster.yml"
end

task :mirror do # this one is an exact copy of the public server
  role :web, "buildmirror"
  role :app, "buildmirror"
  role :db, "buildmirror"
end

task :public do
  role :web, "publicserver.outsideourfirewall.com"
  role :app, "publicserver.outsideourfirewall.com"
  role :db,  "publicserver.outsideourfirewall.com"
  set :deploy_via, :copy
  set :copy_strategy, :checkout
  set :copy_compression, :zip
end

namespace :deploy do
  task :migrate do
    # this is deliberately empty, since we don't do migrations.
  end

end

lib/extensions/mongrel_recipes..rb:
Capistrano::Configuration.instance(:must_exist).load do
  depend :remote, :gem, "mongrel_cluster", ">=0.2.1"
  after "deploy:setup", "mongrel:cluster:setup"

  set(:mongrel_servers, 3)
  set(:mongrel_port) { abort 'Please configure the mongrel_port
variable before deploying' }
  set(:mongrel_address, "127.0.0.1")
  set(:mongrel_environment, "production")
  set(:mongrel_user) { user }
  set(:mongrel_group) { user }
  set(:mongrel_prefix, nil)
  set(:mongrel_num_procs, 3)
  set(:mongrel_conf) { File.join(shared_path, 'config',
'mongrel_cluster.yml') }
  set(:mongrel_startup_file) { File.join('/etc', 'mongrel_cluster',
"#{application}.yml") }

  namespace :mongrel do
    namespace :cluster do
      desc <<-DESC
      Configure Mongrel processes on the app server. This uses
the :use_sudo
      variable to determine whether to use sudo or not. By
default, :use_sudo is
      set to true.
      DESC
      task :setup, :roles => :app do
        argv = []
        argv << "mongrel_rails cluster::configure"
        argv << "-N #{mongrel_servers.to_s}"
        argv << "-p #{mongrel_port.to_s}"
        argv << "-e #{mongrel_environment}"
        argv << "-a #{mongrel_address}"
        argv << "-c #{current_path}"
        argv << "-C #{mongrel_conf}"
        argv << "-n #{mongrel_num_procs}"
        argv << "--user #{mongrel_user}" if mongrel_user
        argv << "--group #{mongrel_group}" if mongrel_group
        argv << "--prefix #{mongrel_prefix}" if mongrel_prefix
        cmd = argv.join " "
        # Try to create shared/config
        sudo "mkdir -p #{File.dirname(mongrel_conf)}"
        # sudo the command to generate a shared/config/
mongrel_cluster.yml
        sudo cmd
        # Try to create /etc/mongrel_cluster
        sudo "mkdir -p #{File.dirname(mongrel_startup_file)}"
        sudo <<-CMD
          if [ ! -e #{mongrel_startup_file} ] ; then
            ln -s #{mongrel_conf} #{mongrel_startup_file} ;
          fi
        CMD
      end

      desc <<-DESC
      Start Mongrel processes on the app server.  This uses the
:use_sudo variable to determine whether to use sudo or not. By
default, :use_sudo is
      set to true.
      DESC
      task :start, :roles => :app do
        sudo "mongrel_rails cluster::start -C #{mongrel_conf}"
      end

      desc <<-DESC

stopping the cluster. This uses the :use_sudo
      variable to determine whether to use sudo or not. By default,
:use_sudo is set to true.
      DESC
      task :restart, :roles => :app do
        sudo "mongrel_rails cluster::restart -C #{mongrel_conf}"
      end

Restart the Mongrel processes on the app server by starting and

      desc <<-DESC
      Stop the Mongrel processes on the app server.  This uses
the :use_sudo
      variable to determine whether to use sudo or not. By
default, :use_sudo is
      set to true.
      DESC
      task :stop, :roles => :app do
        sudo "mongrel_rails cluster::stop -f -C #{mongrel_conf}"
      end

      desc <<-DESC
      Apply a new Mongrel configuration.
      DESC
      task :reset_config, :roles => :app do
        mongrel.cluster.stop
        sudo "rm -f #{mongrel_conf}"
        mongrel.cluster.setup
        mongrel.cluster.start
      end
    end
  end

  # Override standard deploy.
  namespace :deploy do
    desc <<-DESC
    Start the Mongrel processes on the app server by calling
mongrel:cluster:start
    DESC
    task :start, :roles => :app do
      mongrel.cluster.start
    end

    desc <<-DESC
    Restart the Mongrel processes on the app server by calling
mongrel:cluster:restart
    DESC
    task :restart, :roles => :app do
      mongrel.cluster.restart
    end

    desc <<-DESC
    Stop the Mongrel processes on the app server by calling
mongrel:cluster:stop
    DESC
    task :stop, :roles => :app do
      mongrel.cluster.stop
    end
  end
end

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