其實在本週五，GitHub就默默進行了計劃中的一些維護工作，但是不管公司怎麼做保護措施，github網站還是會出現一些問題.在週六的時候，github公司就直接宣佈該公司產品的主要業務將會中斷一段時間。
打開網站GitHub status page， 網站日誌顯示說從昨天開始，該公司的相關業務就開始出現了一些問題。那之後，該公司直接關閉了github.com，並且網站的使用者也不能對自己的項目進行更新了。（我們將繼續關注該站的日誌，如果你想看到最新的說明，請不停的刷新該網頁）
日誌文件：
13:00 UTC: We are beginning our scheduled maintenance. We do not expect this to have visible impact to customers,
but will update status if that changes.
13:17 UTC: We are seeing unicorns related to the scheduled maintenance. We are investigating.
14:03 UTC: We have stabilized the network but with reduced redundancy. We are working through restoring full redundancy.
16:05 UTC: The network continues to be stable, though operating with reduced redundancy. We continue to work with our network manufacturer to restore full redundancy.
18:06 UTC: The site continues to operate normally but at reduced redundancy while we investigate the root cause of the incident this morning. We will leave the
status at yellow until we have restored full redundancy.
23:20 UTC: We are investigating unicorns and repo access problems.
23:43 UTC: A number of repositories are currently unavailable as we diagnose some network problems.
0:12 UTC: We’ve disabled GitHub.com and Gists while we continue to resolve the network problems.
2:06 UTC: Our network has been stable for some time, but weve chosen to remain in maintenance mode while we continue to restore internal services. We are making
good progress and will post additional updates as we have more information available
該公司還是其公司twitter上對出現的問題進行了說明。
GitHub.com and Gist are down for maintenance while we investigate problems in our network. Please visit status.github.com.
— GitHub (@github) December 23, 2012
訪問github.com，會出現如下的一個友好的錯誤提示頁面：
我們已經聯繫了GitHub公司，希望能瞭解更多的信息，如果GitHub有回覆，我們將在第一時間對這篇文章進行更新。
Update at 9:45PM EST: GitHub正在進行一些努力，並且取得了一些進展，但是關於網站服務中斷問題還是沒有解決
link：http://thenextweb.com/insider/2012/12/23/after-scheduled-maintenance-github-confirms-major-service-outage-across-all-its-services/