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MircroServices (and a story about Netflix) | Prime React - YouTube
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there we go we added this three marker
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microservices let's go here we go
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three years
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I'm still not understanding this why is
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it so hard to display the birthday date
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on the set
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I can already feel so many emotions
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coming up inside of me I know we haven't
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even started
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but you guys just don't even know you
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don't even know
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what happened to me you don't even know
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about Black Mirror you don't know about
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the Pig episode
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this it hits so home to me because the
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pig
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that I will literally never be able to
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recover from watching this video but
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we're gonna do it settings page why
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can't we get this done this quarter look
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I'm sorry we've been over this it's the
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design of our back end first we have to
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call the Bingo service see Bingo knows
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everyone's
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Bank
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I'm sorry about the screen tearing okay
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again I'm switching to sway
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March 13th okay
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Nemo so we get the user's ID out of
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there then from Bingo we can call papaya
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and MBS to get that user ID and turn it
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into a user session token we can
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validate those with ulna and then once
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we have that we can finally pull the
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user's info down from raccoon
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foreign
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so does anyone know about Black Mirror
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on Netflix
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anyone familiar with Black Mirror
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did anyone watch Black Mirror before
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Netflix purchased Black Mirror
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type 2 if you watched Black Mirror
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before Netflix owned Black Mirror which
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was starting season four did anyone
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watch It season three
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and less
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okay
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um I got a story for you we're gonna do
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a story here very very soon but first
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let us become emotionally damaged by
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what we're about to see which this is
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effectively a documentary of working at
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Netflix doing large
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things but couldn't the raccoon team
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basically just no raccoon isn't
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guaranteed to have that info before we
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do this we have to go to wingman do a
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query to see if the user's willing I
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love the wingman and Apex I just so I'm
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just very happy they they named a
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service called wingman to take it to the
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next level or if they're just playing
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the field now wingman is cool but he
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doesn't store any user info himself he
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has to reach out to other user info
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Provider Services like RGS Barbie doll
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ringo2 BLS
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but how does it know what all the user
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Provider Services are well for that it
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has to go to Galactic all-knowing user
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service provider
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I just hate this why do we make this why
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did the world do this why did we do this
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to ourselves we have a world in which
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was not that great and we replaced it
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with an idea that felt better
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and now we have Galactus why is this why
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why aggravator
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and what Galactus has omniscient
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knowledge of all current user info
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providers it doesn't have future sight
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or knowledge of past user info providers
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so it expects a Time range to get all
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the current user info providers we need
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to pass a Time range with the current
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time and a Time representing the end of
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the universe which we get from eks our
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entry chaos service
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PKS it's being deprecated at the end of
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the month for omega star but omega star
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still doesn't support ISO timestamps
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like they said they would a month ago
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no no no no no no
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oh my goodness we have such
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so until omega star gets their [聽__聽]
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[聽__聽] together we're blocked we can't get
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signed up for our use case we can't use
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eks there's nothing we can do
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so Galactus won't be able to find our
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new birthday boy provider which means
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wingman won't know how to talk to
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anybody which means I won't be able to
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find true love and I'll die alone
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laughs
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I'll die alone without ever knowing love
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without ever knowing it's my birthday
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it's birthday blocked okay
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we're blocked you sad pathetic little
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product manager
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they just
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okay product managers don't know the
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pain that's going on here they don't
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they can't they cannot under they cannot
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feel it he has a notepad trying to write
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down what's happening he doesn't feel it
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deep down
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you think you know what our users want
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you know nothing of my pain of
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galactus's pain
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you think you know what it takes to tell
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the user it's their birthday
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you know nothing
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delivering this feature goes against
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everything I know to be right and true
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and I will sooner lay you into this
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Barren Earth then entertain your Folly
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for a moment longer
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[Music]
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alright so clearly this is blocker uh no
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problem wishes out another two to three
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years or so learned a lot today love
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Galactus uh but we'll talk next week
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about adding middle names to the profile
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awesome sounds good take care
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ah
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it's just so painful it's just so
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painful to see so when I was working at
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Netflix uh oh my goodness where's my
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marker there it is got it when I was
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working at Netflix
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um
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during my time there which I'm still
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there by the way uh we had this
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beautiful thing okay that's way too big
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what is happening here okay well this is
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this is not this is not this is not what
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I was hoping for and make it smaller yep
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make it smaller and yeah there we go so
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while my time at Netflix has been
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fantastic there was this time in which
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we need to do a little show called Black
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Mirror and it sounds like a lot of
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people are pretty familiar with Black
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Mirror now I wanna I want someone to
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type into the into the chat PF
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if you know what the first episode's
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about
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type PF in the chat if you know if you
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know about the first episode
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okay for those that don't know what PF
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is it's called Pig
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um Yes you heard me correctly Pig
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and uh at my job I had several meetings
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in which involved the phrase pig to be
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said
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a hundred separate times it was wild and
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so we came up with this idea okay hear
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me out is that we Netflix are producing
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season four
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there are three seasons before us season
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three season two season one and we
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thought you know would be way better is
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instead of showing you
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the first episode S1 E1
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instead we're gonna show you S4 E1 which
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means you couldn't just reverse sort it
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right you couldn't just okay this is a
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reversed sort ordering because then you
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get S4 E6 I think I think there's six
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episodes in season four and so you
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couldn't do that you could not
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just simply reverse it so what we have
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to do is we have to reverse the season
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so we'd have to have a reverse season
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but not a reverse episode now this
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caused a lot of problems in our system
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the reason why it caused a lot of
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problems in our system is quite simple
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there's a few different things that need
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to come into play here okay so first off
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there is GPS GPS would calculate your
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lolomo your lolomo of course is the list
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of list of movies that exist on Netflix
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it's when you go there you scroll
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through it that's what you're going to
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see okay list of list of movies pretty
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straightforward uh GPS has nothing to do
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with the map but shockingly enough a
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service called map
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would call into GPS and get the skeleton
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of your GP of your lolamo and then fill
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it in more dynamically right be able to
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get things going on so you'd see
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something like this inside GPS GPS would
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produce a list of shows and one of them
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would be say like Black Mirror now it's
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probably gonna choose Black Mirror S1 E1
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and so map has to be smarter and map
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needs to go well wait a second s1e1
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isn't actually the latest episode or the
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episode we should be promoting instead
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we need to be promoting S4 E1 so map
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itself doesn't know anything about what
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is latest about videos that is where
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something called VMS comes in VMS oh my
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goodness sorry VMS VMS
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VMS video metadata service right but
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video metadata service doesn't actually
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hold
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is that
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video about a dentist service that's
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actually all that he did about video
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about the latest and so video metadata
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service actually used something called
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if I'm not mistaken Dexter which has a
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lot of the data about it it also had a
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second service that provided other data
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about it I can't remember the name of
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that service okay and so VMS was very
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very important but VMS didn't know
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anything about ordering it just used raw
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data out of Dexter and we didn't want
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people to have to reverse order in
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Dexter and go back through and do that
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we can't do that because then it's going
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to get all screwed up because here's the
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deal is though we're delivering all
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these things down we need a way to be
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able to identify them uh by their their
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season countering and all that so we
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also had like this metadata service
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about it such as like their season name
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their season and episode number so if
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you just had season one be replaced with
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season four it would come back as S1 E1
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which is incorrect so the metadata
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service also couldn't just have things
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out of order because metadata service
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also relied on this so now that we have
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that we needed something else so then
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came in a glorious thing called c m s
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content metadata service so content
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metadata service's real job was actually
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to provide a service that would do these
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kind of more logical reorderings at run
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time and not at service time that way we
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could have these really beautiful items
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in here and so that way map actually
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called into content metadata service to
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make sure it was delivering the correct
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thing but here's the problem there was
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more things that needed to happen
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because then on the front end you'd have
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to call in and get your lolamo and then
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we would receive these but the problem
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is when you're on your low level your
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list of list of movies what happens when
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you look at your Seasons well they're
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not reversed because we are still
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currently using VMS for our middleware
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so our middleware needed to start using
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CMS but the problem was is that API uses
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the API service Gateway pattern which
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means that we now have things such as
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get you know get metadata
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two we literally had get metadata 2
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because get metadata can't just be
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deprecated you can't just you can't just
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undo these things so we actually had to
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develop a second babe to do this but
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here's the problem how did you know you
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need to call this well we actually had
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to create another service I forget what
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it was even called at this point that
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would tell you if this video needed to
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be reordered based on flags at a
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separate system which I can't remember
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what it was called so when you combine
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all these systems together this was how
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microservices happened this is how we
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reversed episode ordering at Netflix
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okay and I love the charge on this one
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okay I did that
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I did that
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it was a lot of fun
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it took like four months oh you know
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what the worst part about it is that I
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didn't get to really choose a lot of the
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names
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and so there's this problem that
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happened on website uh website because
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one of the flags that would come down
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from this service up here which you can
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barely see was hidden
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episode
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numbers
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right and so that was a runtime decision
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that had to be made and the website
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couldn't support it being on the server
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side so it had to be on the client side
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so we'd actually send down those flags
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on the to the client and the client
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would then not display it
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because we just didn't have time for
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another service right here to do the
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mixing of all these things right so we
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had that and so we had to do that but
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here's the problem is the website team
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uh the website team they hated this name
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and so I had to do a whole code review
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and then not allow these names to take
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place because this implies actually not
[782]
visible
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and they didn't want a not visible they
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wanted the name to be said in a way
[789]
that's not complicated so we had to then
[793]
after making all the changes and
[795]
everything was uniformly ready to go
[796]
someone said hey we can't do this and I
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just said hey I mean this is just the
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name of the flags I think it's better
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just to stick with the names throughout
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you know it's not the name I would
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choose but whatever and of course that
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didn't work out so I had to then do a
[809]
quick refactor rename things and that's
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that
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it was
[818]
it was the worst experience of my
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lifetime
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all this
[824]
so that the Pig episode
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wasn't the first thing you saw
[832]
can you fix the no uh let's see why not
[835]
just a rate of uh reverse on the front
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end did you not hear oh my goodness I
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feel like I just did an entire story
[843]
why not
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were you not even paying attention
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were you not even paying attention to
[850]
this whole thing I I just EX
[853]
don't be coming into this chat
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with your vs code Vibes all right you
[858]
keep that out
[859]
you keep that out right now
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