The Login/SSO feature saw the largest increase in the number of minor incidents: +39 incidents (295% increase).For example, Calls experienced fewer incidents after the acquisition, but the total duration of incidents increased by 141 hours and 45 minutes. Incident number and duration do not always correlate.A noticeable increase in minor incidents was seen for the Connections, Login/SSO, Messaging, and Posts/Files features.6 out of 10 features show a decrease in minor incident numbers after the acquisition.There is a wide distribution across all the features, with both significant improvements and declines observed. Overall, Slack exhibited more major outages in 2020 than in 20.Īs for minor incidents, the chart below represents the total incident number and duration for each feature before and after the acquisition. After the acquisition, no outages for stand-alone features were observed. Improvement in outage duration for all features, with significant improvements in Messaging and Connections.īefore the acquisition, there were major outages for 1-2 individual features.No improvement in the outage number for Slack Calls, Notifications, or Workspace/Org Administration.Minor improvement for 6 features out of 10.Significant improvement for the Connections feature, as the outage number and duration are much lower post-acquisition.What can we conclude from this feature data? First, there is no increase in outages for any feature. The chart below represents the total outage number and duration for each feature before and after the acquisition. To go further, we must look at individual features. So far, it seems major outage frequency and duration are lower post-acquisition, but the number of minor incidents increased. We can see from the chart that the minor incident number appears higher post-acquisition. Pre-acquisition, however, there were visibly more major outages. Slack’s Reliability Before and After the Acquisitionįrom this chart, we can see that post-acquisition, there was one outage recorded affecting all 10 features of Slack. However, the average incident duration dropped by 31%, which we consider a significant change. On average, the minor incident frequency slightly increased after acquisition by 7%. We analyzed monthly minor incidents of Slack and compared average values before and after the acquisition. Analysis of Slack Minor Incidents Before and After July 2021 The average number of outages decreased by 45% and the average outage duration was 30% shorter. We analyzed monthly major outages of Slack and compared average values before and after the acquisition.įrom this table, we can see that Slack’s reliability improved after the acquisition. Analysis of Major Slack Outages Before and After July 2021 Then we divided this number by the total number of months for that period to calculate an average value for the major outage count. We calculated the total number of outages recorded before and after the acquisition. Slack’s Reliability Before and After Acquisition To analyze the effect of acquisition, we compared major outages and minor incidents before and after the acquisition as follows: We analyzed minor incidents and major outages over a period starting January 1, 2020, until December 14, 2022. StatusGator, on the other hand, uses “warn” and “down” respectively to rate the severity of downtime.įor clarity, we used Slack’s terms but enhanced them, so in this article, “minor incident” refers to an incident (which Slack shows in yellow), and “major outage” refers to an outage (which Slack displays as red). Slack’s status updates use two terms to indicate downtime severity: incidents (marked yellow) and outages (marked red). StatusGator aggregates data from status pages and presents it clearly, generating a unique dataset that allows us to analyze Slack’s reliability effectively. To collect data for analysis, we used our own product, StatusGator. To evaluate this, we reviewed Slack’s reliability over time. Looking at this major outage, we questioned if Slack is more or less reliable after the acquisition by Salesforce, similar to our previous overview of GitHub downtime after its acquisition by Microsoft. In February of 2022, roughly 6 months after its acquisition, Slack exhibited one of its biggest outages ever recorded, lasting 3+ hours followed by more than 10 hours of minor incident status. On July 21, 2021, Salesforce completed its purchase of Slack for $27.7 billion and announced plans to make Slack an operating unit under Salesforce. According to Techjury, more than 10 million people used Slack every day in 2022, and 43% of Fortune 100 businesses are paying for Slack subscriptions. Slack is a popular messaging and communication platform used for work, study, groups, and communities.
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