IN 2019

IN IN 2019 IN 2019 WHATSAPP IN 2019 WHATSAPP HAD OVER IN 2019 WHATSAPP HAD OVER 900 IN 2019 WHATSAPP HAD OVER 900 MILLION IN 2019 WHATSAPP HAD OVER 900 MILLION USERS BUT RAN BUT RAN THEIR BACK BUT RAN THEIR BACK END TEAM WITH ONLY FIFTY ENGINEERS HERE'S HOW THEY DID OVER FIVE YEARS AGO OVER FIVE YEARS AGO I DECIDED TO BUILD MY OVER FIVE YEARS AGO I DECIDED TO BUILD MY SOFTWARE THE WITH THE EXACT WITH THE EXACT SAME TECH STACK THE SECRET THE SECRET TO THIS THE SECRET TO THIS IS A LANGUAGE WHICH WHICH WAS BUILT IN THE 80S TO RUN PHONE TO RUN PHONE NETWORKS THAT WERE NEVER TO RUN PHONE NETWORKS THAT WERE NEVER SUPPOSED TO GO TO RUN PHONE NETWORKS THAT WERE NEVER SUPPOSED TO GO DOWN EVERY USER EVERY USER CONNECTION IS ITS OWN EVERY USER CONNECTION IS ITS OWN TINY EVERY USER CONNECTION IS ITS OWN TINY PROCESS JUST 300 BYTES JUST 300 BYTES SO NO ONE JUST 300 BYTES SO NO ONE SERVER HAS TO JUST 300 BYTES SO NO ONE SERVER HAS TO HOLD 2 TO 3 MILLION OF THEM AND WHEN AND WHEN ONE CRASHES THE AND WHEN ONE CRASHES THE PHILOSOPHY IS AND WHEN ONE CRASHES THE PHILOSOPHY IS SIMPLE LET IT CRASH LET IT CRASH A SUPERVISOR LET IT CRASH A SUPERVISOR IS ABLE LET IT CRASH A SUPERVISOR IS ABLE TO RESTART THIS IN MILLISECONDS WHERE NO ONE EVEN WHERE NO ONE EVEN NOTICES WHAT WENT WHERE NO ONE EVEN NOTICES WHAT WENT WRONG NOW NOW HERE'S WHERE NOW HERE'S WHERE IT GETS RELEVANT OVER OVER THE PAST FIVE YEARS OVER THE PAST FIVE YEARS I'VE BEEN WRITING ELIXIR ELIXIR RUNS ON THE ELIXIR RUNS ON THE SAME EXACT THE BEAM THE BEAM JUST WITH THE BEAM JUST WITH MORE MODERN AND THE BEAM JUST WITH MORE MODERN AND FRIENDLIER SYNTAX DISCORD DISCORD ALSO RUNS DISCORD ALSO RUNS ON THE SAME ELIXIR OVER 11 MILLION OVER 11 MILLION CONCURRENT USERS OVER 11 MILLION CONCURRENT USERS AT THE SAME TIME THIS IS PRODUCTION THIS IS PRODUCTION REAL TIME INFRASTRUCTURE NOW LET ME BRING IT HOME THE E-CITIZEN THE E-CITIZEN THAT YOU LOVE THE E-CITIZEN THAT YOU LOVE IS ALSO BUILT ON THINK THINK ABOUT HOW MUCH DATA IT THINK ABOUT HOW MUCH DATA IT HANDLES AND IT NEVER IT'S ALWAYS IT'S ALWAYS REAL TIME IT'S IT'S ALWAYS REAL TIME IT'S THERE FOR YOU AND THAT IS BECAUSE OF AND THAT IS BECAUSE OF ELIXIR I BELIEVE I BELIEVE USING ELIXIR I BELIEVE USING ELIXIR AND PHOENIX LIVE I BELIEVE USING ELIXIR AND PHOENIX LIVE IS LIKE HAVING SUPERPOWERS I'VE I'VE BEEN ABLE TO I'VE BEEN ABLE TO LEAD I'VE BEEN ABLE TO LEAD TEAMS THAT HAVE BUILT THAT THAT ARE VERY ROBUST THAT ARE VERY ROBUST WITH VERY LITTLE INFRASTRUCTURE LAST LAST YEAR LED A LED A TEAM THAT LED A TEAM THAT BUILT TICKETING LED A TEAM THAT BUILT TICKETING SYSTEMS THAT PROCESSED THAT PROCESSED OVER THAT PROCESSED OVER 500,000 YOU YOU CAN IMAGINE THE VOLUMES YOU CAN IMAGINE THE VOLUMES THAT WE'RE GETTING AND OUR SYSTEM AND OUR SYSTEM NEVER WENT DOWN SYSTEMS THAT SYSTEMS THAT ARE ABLE TO POWER OVER SYSTEMS THAT ARE ABLE TO POWER OVER 100,000 SYSTEMS THAT ARE ABLE TO POWER OVER 100,000 SMS IF YOU'VE BEEN IF YOU'VE BEEN THINKING ABOUT JUMPING TO MAYBE MAYBE THIS IS A VIDEO THAT GETS HAVE A LOOK AT IT IT'S ONE IT'S ONE OF THE LANGUAGES WITH THE IT'S ONE OF THE LANGUAGES WITH THE BEST SYNTAX I'VE EVER AND AND THERE'S AN AMAZING AND THERE'S AN AMAZING COMMUNITY HERE IN KENYA BUT BUT IN THE WORLD THAT'S BUT IN THE WORLD THAT'S SUPPORTING YOU BUT IN THE WORLD THAT'S SUPPORTING YOU EVERY STEP OF YOUR JOURNEY MAKE SURE YOU MAKE SURE YOU FOLLOW FOR MORE MAKE SURE YOU FOLLOW FOR MORE TECH CONTENT LIKE THIS CHEERS