GitHub was down for developers on late Sunday and into early Monday. GitHub's vice president, Jason Warner reported that there was no data loss, fortunately, which should come as a huge relief for developers who arrived at work today like nothing had happened, until they started working on issues or looking at pull requests.
GitHub holds code for millions of developers worldwide and also includes bits of Windows 10 code. The official GitHub Twitter feed stated the company had to migrate to a failover data storage. Knowing the migration would take time to complete, the GitHub support team kept developers updated whilst they worked on the issue over the weekend.
We are continuing to work to migrate a data storage system in order to restore access to https://t.co/IEoI8IWMw9.
— GitHub Status (@githubstatus) October 22, 2018
We are aware of how important our services are to your development workflows and are actively working to establish an estimated timeframe for full recovery.
The incident report says that multiple services were involved and a network partition and subsequent database failures were the cause, but protected data by pausing webhooks and other processing.