Following a period of nearly uninterrupted uptime, GitHub experienced three significant outages over consecutive days, prompting an investigation and a plan to prevent future occurrences. The first outage was due to a load spike on a file server that did not transition smoothly to its slave server, exacerbated by outdated DRBD configurations, which are now being improved. The second outage stemmed from a faulty DRBD configuration update that halted machine pairs' replication, compounded by inadequate system-wide testing protocols, which GitHub intends to tighten. The third outage resulted from a Yahoo! spider causing excessive load spikes, leading to the implementation of better rate-limiting strategies. Scheduled maintenance will occur at 10 PM PST over the next week to address these issues, with updates provided via GitHub's Twitter account, underscoring the company's commitment to enhancing platform stability and user experience.