Facebook caused an uproar when it forced all of its users to download the messenger app. And now that everyone’s on it, Facebook has unveiled how it updated its infrastructure system to make sure the messages don’t lag. Meet its solution: Iris, a new messaging-queue system.
Although the social network has been improving Messenger’s features over the years, the underlying technology that powers those additions lagged when Messenger became compatible with mobile devices, which became especially important when Facebook forced users to download the Messenger app instead of chatting in the native Facebook app. To revamp its infrastructure, Facebook came up with a faster syncing protocol that has supposedly cut down the amount of traffic on its network and led to a roughly 20 percent decrease in message errors.
Before the revamp, when a user received a chat on the Messenger app on his or her mobile device…
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