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Tag Archives: single
Jenkins 的 Blue Ocean 計畫，改善使用者操作的友善度...
Jenkins 的 Blue Ocean 計畫打算改善讓人頭痛很久的操作體驗了： Blue Ocean is a new project that rethinks the user experience of Jenkins. Jenkins 讓人頭痛有兩個面向，一個是界面很難讀，另外一個是操作流程很沒有規則，所謂「熟悉 Jenkins」其中一個很艱難的任務就是要背下一堆功能「蔵在哪邊」。而這次 Blue Ocean 想改善的事情看起來主力放在界面，對於流程修的比較少... 即使如此，這還是可以讓使用的人減少一些痛苦就是了... 成功與爆炸的表現： 在專案頁面的後面有提到 Blue Ocean 用的技術： Blue Ocean is built as a collection of Jenkins plugins … Continue reading
Mozilla Developer Network (MDN) 上的 JavaScript 教學
Mozilla Developer Network (MDN) 寫了一篇關於 JavaScript 的介紹文章，算是以現在的角度來教 JavaScript：「A re-introduction to JavaScript (JS tutorial)」。 不是給完全不懂的人入門看的，而是對程式語言有了解的人看的。 文章裡面不單純只是教學，還引用了許多重要的文獻，尤其是 ECMAScript 規格書。有想要考據確認規格書怎麼定義會很方便。 而最後面還提到了 browser 上 DOM 實作時的 memory leak 問題以及解法，這對於現在 single page application 的應用也愈來愈重要了。
Posted in Browser, Computer, Murmuring, Network, Programming, Software, WWW
Tagged application, browser, developer, dom, ecmascript, javascript, leak, mdn, memory, mozilla, network, page, programming, single
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維基百科的 Global Account 轉移計畫
維基百科描述了當初沒有規劃多語系與多系統的帳號管理，而產生出來的 migrate 計畫：「Single-User Login provides access to all wikis」。 整個計畫到實作完成長達十年 (大約從 2004 年開始有想法)，接下來進入最後階段： This week, we will begin the process of renaming the remaining 1.46 million accounts – those which have not responded to all attempts at outreach. That process … Continue reading
[ 與 [[ 的差異 (Left square bracket)
在寫 shell script 時，[ 與 [[ 到底用起來有什麼不一樣？查出來記錄起來：「What is the difference between double and single square brackets in bash?」。 第一高分的答案 (由 Kyle Brandt 回答) 與第二高分的答案 (由 abhiomkar 回答) 都值得看，尤其是 abhiomkar 寫的範例很清楚： $ [ a < b ] -bash: b: No such … Continue reading
AWS IAM 支援 SAML 2.0
剛剛看到 AWS 宣佈 AWS IAM 支援 SAML 2.0：「AWS Identity and Access Management Using SAML」。 SAML 是 Single Sign-On 協定的一種，2001 年就推出來了，不過其中用到的架構頗為複雜，由於是 XML 交換技術，再加上要在 XML 上面簽名 (XML Signature)，其實我不是很喜歡這東西... @_@ 當初會硬要接觸是因為 Google Apps 的 SSO 是使用 SAML，真是懷念啊... 由於是個公開標準，有不少企業 SSO 方案都有支援 SAML。而 AWS IAM … Continue reading
MySQL 平行執行的 Replication...
「MySQL Replication – Multi-Threaded Slaves (Parallel Event Execution)」這篇在講 MySQL 5.6 的 multi-threaded replication。 在文章裡提到，在 5.6.3 之前的版本，MySQL replication 都是 single-threaded，所以當 master 可以充分發揮多 CPU 能力時，slave 仍然要一個更新跑完才會跑下一個更新。 舉例來說，假設 master server 上有兩個 thread 在跑： thread 1 正在執行 UPDATE table1 SET foo = 0 WHERE … Continue reading