Most monitoring solutions are hosted on cloud instances. IT teams in some organizations might already monitor their SaaS applications, but it is not surprising if none of them had triggered any alarms for Slack. This can lead to outages that directly impact customers. Why Monitoring From The Cloud Isn’t Enoughĭuring such incidents where Operation teams are not able to collaborate efficiently with each other, things can easily get out of control. Things got more difficult as Slack’s status page was down due to the same issue. Users were struggling to understand if they were not able to access Slack due to their device, wireless network or ISP connectivity. At the time of publication, the issue is still ongoing for some users and at 06:57 Slack UTC announced it may take up to 24 hours to completely resolve this issue for all users. The outage was related to a DNS failure, which was later acknowledged by Slack. Users were not able to access desktop, mobile, and web applications of Slack from 15:30 AM UTC onwards. Let’s start by breaking down the issue that’s happening currently. However, you can take action to avoid business impact. If the process of DNS resolution fails, users experience outages like this. Unfortunately, things got more challenging this week as one of the world’s largest collaboration and messaging applications, Slack, was not accessible for various users worldwide during the same time period.ĭNS misconfiguration is at the core of this issue. Many were forced to urgently rotate SSL certificates after one of Lets Encrypt’s root certificates expired.Ĭollaboration plays a critical role during such situations where members in a team or multiple teams must communicate and work with each other to rapidly and efficiently complete a collective task. It has been a busy week for Ops teams across the globe. Looking for proof? It’s happening right now. DNS observability is an essential part of any Ops team’s strategy.
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