[masayuki@dev_svgr_jp /var/local/projects/svgr.jp]$ script/plugin install http://newrelic.rubyforge.org/svn/newrelic_rpm --force
+ ./CHANGELOG
+ ./LICENSE
+ ./README.md
+ ./Rakefile
+ ./bin/mongrel_rpm
+ ./bin/newrelic_cmd
+ ./cert/cacert.pem
+ ./init.rb
+ ./install.rb
+ ./lib/new_relic/agent/agent.rb
+ ./lib/new_relic/agent/chained_call.rb
-- 略 --

• 平均レスポンスタイム(Ruby / DB)
• Apdexスコア
  
  Apdex(Application Performance Index)とは､アプリケーションの性能を定義する標準的な指標とのこと｡
  
  詳しくは､こちらを参照｡
• スループット(request per minute ?)
• ホスト毎のCPU使用率､メモリ使用量
• 直近のイベントノート(コメント)､デプロイ履歴など

• Web Transaction
• Database
• Transaction Traces
• Errors

まとめ

$ svn add hoge.txt

A hoge.txt

$ svn commit hoge.txt

Log message unchanged or not specified

a)bort, c)ontinue, e)dit

c

svn: Commit failed (details follow):

svn: Can't open activity db: No such file or directory

[Wed May 27 14:28:14 2009] [error] [client 202.218.216.13] Could not create activity /repos/tmprepo/!svn/act/c41a20c5-6b08-4c73-9da5-e41a2da69086. [500, #0]
[Wed May 27 14:28:14 2009] [error] [client 202.218.216.13] could not open dbm files. [500, #2]
[Wed May 27 14:28:14 2009] [error] [client 202.218.216.13] Can't open activity db: No such file or directory [500, #2]

After some time searching around for others that had encountered this error, I was able to determine that the problem was that version 1.5 of the svnadmin create command doesn’t create a “dav” directory in the repository, unlike earlier versions.

via: subversion ‘can’t open activity db’| johngirvin.com

1.5から dav/ディレクトリは作られなくなったので手動で作成しろと。。

また同じようにハマりそうなのでエントリ書きました。

でも、もうちょっと気が利いたエラーメッセージにして欲しかったな。

• Subversionクライアント – SVNMate
• CakePHP用バンドル
• grep

• あて 〜煮込 肴〜
• 東風汁麺屋本店

• Google Developer Day 2008 レポート（前編）- WebOS Goodies
• Google Developer Day 2008 Japan 基調講演 – 天使やカイザーと呼ばれて
• Google Developer Day 2008 Japan [OpenSocial] – 天使やカイザーと呼ばれて

• 複数プロジェクトを管理できる
• デフォルトで日本語対応している
• ガントチャートが使える
• RailsアプリでPassenger(mod_rails)に対応(v0.7より)

# gem install tlsmail

require "tlsmail"
Net::SMTP.enable_tls(OpenSSL::SSL::VERIFY_NONE)

You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
require 'redmine/scm/adapters/abstract_adapter'
require 'rexml/document'
module Redmine
module Scm
module Adapters
class SubversionAdapter < AbstractAdapter
# SVN executable name
SVN_BIN = "svn"
# Get info about the svn repository
def info
cmd = "#{SVN_BIN} info --xml #{target('')}"
cmd < doc.elements["info/entry/repository/root"].text,
:lastrev => Revision.new({
:identifier => doc.elements["info/entry/commit"].attributes['revision'],
:time => Time.parse(doc.elements["info/entry/commit/date"].text).localtime,
:author => (doc.elements["info/entry/commit/author"] ? doc.elements["info/entry/commit/author"].text : "")
})
})
rescue => e
logger.error(e)
end

require 'redmine/scm/adapters/abstract_adapter'
require 'rexml/document'
module Redmine
module Scm
module Adapters
class SubversionAdapter < AbstractAdapter
# SVN executable name
#        SVN_BIN = "svn"
SVN_BIN = "svn --config-dir /home/apache " # こうする
# Get info about the svn repository
def info

httpサーバ

• lighttpd

• Mongrel

• WEBrick

WEBrick is a Ruby library program to build HTTP servers.

via: RAA – webrick

実際にWEBrickでhttpプロキシサーバを作るチュートリアルがこちらに載っている。

httpサーバと組み合わせるモジュール

• FastCGI

• Passenger(mod_ruby)

まとめ

• Gadget Container JavaScript — core JavaScript foundation for general gadget functionality. This JavaScript manages security, communication, UI layout, and feature extensions, such as the OpenSocial API.
• Gadget Server — an open source version of Google’s gmodules.com, which is used to render the gadget XML into JavaScript and HTML for the container to expose via the container JavaScript.
• OpenSocial Container JavaScript — JavaScript environment that sits on top of the Gadget Container JavaScript and provides OpenSocial specific functionality (profiles, friends, activities, datastore).
• OpenSocial Gateway Server (does not yet exist in the repository) — an implementation of the server interface to container-specific information, including the OpenSocial REST APIs, with clear extension points so others can connect it to their own backends.

via: What is Shindig?

Shindigを動作させる事によって、自分のWebアプリケーション上でGadgetをホスティングでき、さらにOpenSocialアプリケーション機能を提供できます。
今回はShindigのダウンロードからPHP上で動作させるまでをやってみました。


ソースをダウンロード

$> mkdir -p ~/src/shindig
$> cd ~/src/shindig
$> svn co http://svn.apache.org/repos/asf/incubator/shindig/trunk/ .

$> cd /Applications/xampp/xamppfiles/htdocs
$> ln -s ~/src/shindig/php/gadgets .

class CommandExecutor
def initialize
@commands = Array.new
end
def setCommand cmd
@commands << cmd
end
def execute
@commands.each do |cmd|
cmd.execute
end
end
end

class AbstractCommand
def initialize
@option     = '';
@command    = '';
end
def execute
%x{@command};
end
def setOption opt
@option = opt
end
end

require 'AbstractCommand.rb'
class CurrentDirCommand < AbstractCommand
def initialize
@command = 'pwd';
end
def execute
STDOUT << %x{#{@command}}
end
end

require 'AbstractCommand.rb'
class ListCommand < AbstractCommand
def initialize
@command = 'ls';
end
def execute
if @option.nil? then
cmd = @command
else
cmd = @command + @option
end
result = %x{#{cmd}}.split(/\n/)
STDOUT << result.join("\n") + "\n"
end
end

require 'AbstractCommand.rb'
class MakeDirCommand < AbstractCommand
def initialize
@command = 'mkdir';
end
def execute
if @option.nil? then
cmd = @command
else
cmd = @command + @option
end
STDOUT << %x{#{cmd}}
end
end

#!/usr/bin/ruby
require 'CommandExecutor'
require 'ListCommand'
require 'CurrentDirCommand'
require 'MakeDirCommand'
# コマンド実行オブジェクトを new
executor = CommandExecutor.new
# pwd コマンド追加
pwd = CurrentDirCommand.new
executor.setCommand pwd
# lsコマンド追加
ls = ListCommand.new
ls.setOption ' -lk'
executor.setCommand ls
# mkdir コマンド追加
mkdir = MakeDirCommand.new
mkdir.setOption ' tmp'
executor.setCommand mkdir
# 全部実行
executor.execute
exit

なぜGadgetなのか？

• Gadgetサーバ
• Javascriptコンテナを提供
• RESTful APIを提供

他のSNSからどのように情報を取得するのか？

まとめ