"Running a load test with the estimation gave us a good number of servers and specifications for our database which we employed to pre-scale the systems before sales events," Silvia says. "We now use New Relic a lot in load testing for peak sale events - that’s where we see the most value. In the weeks leading up to a sale period, we load-test the microservices, all the different apps, and all the different underlying infrastructure across all the different country sites, to make sure that they perform as expected on those days."
"It’s very important for my team that they can move fast and have the right tools at hand to solve any particular part of their engineering puzzle."
The next step for ZALORA is moving over to New Relic One, which will eliminate host-based pricing and thus be more cost-effective, as well as delivering the ability to instrument “everything”, she says.
The company is also modernising existing architecture to help accelerate time to market, and growing its SRE team by 33% to around 40 experts in 2021, increasingly focused on observability.
ZALORA is also looking at implementing SLOs, SLA, and SLIs within its engineering teams and setting specific KPIs, Silvia adds, a move introduced after attending a recent New Relic workshop.