page = jaana dogan – medium
url = https://rakyll.medium.com
Correlation in Latency Analysis This article was my response to Amazon’s writing assessment when I was interviewed. I answered the question of “What is the most inventive or innovative thing you’ve done? It doesn’t have to be something that’s patented. …
How Does Spanner Avoid Single Point of Failures in Writes? Google’s Spanner is a relational database with 99.999% availability which translates to 5 mins of downtime a year. Spanner is a distributed system and can span multiple machines, multiple datacenters (and even geographical regions when configured). It splits the records automatically among its replicas and provides automatic failover. …
Persistent Disks and Replication If you are a cloud user, you probably have seen how unconventional storage options can get. This is even true for disks you access from your virtual machines. There are not many ongoing conversations or references about the underlying details of core infrastructure. …
Health, Availability, Debuggability As we collect various observability signals from systems, it fosters a new conversation around the classification of the signals. There is a significant discussion on observability signals and even strong advocacy for one signal over the other. Metrics, events, logs, traces or others? …