affect the it's always somebody to come to a conference
you listen to the Constantine and all these children were speaking about the
things that
there's so much smarter than you are and it's too late
for me so I ever talked about micro servers architectures and to some degree
this is a bit bay
personal journey well let me be clear do not take his journey
it is too painful so I was sorta share so my
payin' kind where my head is that now for myself for you will not find
the same thing I really think it's also the reason for the US
I work in the lot of countries at work in India China
I've lived in London now for the last six years a
so I can go where the fun stuff yet so the story kinda starts the beginning
I'll in the beginning we basically
we're really systems that I was sorta say reasonable stone-age
he knows we have nice powers functionality with cross-functional
services
and please much we I didn't I was not the architect so the image
but I I do have to say that when paula was talking earlier yesterday
East right time in 1968 well I'm sorry 1960s when I started writing code
so I was having my life flashed before my eyes he was talking
the fact I was actually one other people in IBM at the time in the early
seventies
where the experiment with waterfalls I was when the victims and wonderful
this is this is why you see a show a person today
so my story actually starts not back
its own it really kinda 2004
and this I was I was working with an application
thousand dollars at the time the application was a
and what about me live j2ee is a at one point time was the largest Sun Certified
takes the occasion the world is a levy says
quite complex ultra bellwether application it has a very very
nice history associated with it I'll
it started very well see is it was really party actual effort fly down it
all worse
I'll among other things Martin follower and
and we're coming into game console going back more my collar
to win it all works at working on this %uh the book enterprise
application patterns that book come from a lot of work to get on this application
so in some places a very influential application their industry
so I started really well so my party for this application gets in 2004 what I
found the 2004
and I'll I got the idiot working on this because that's where most developers
were working on at that time
were found in 2004 was a million lines of code
but 2000 fast but
seven-percent the tests ever says passing was to Syria victory
you're happy and I'm like what that 30 percent failing
it was a different 30 percent every day and they thought that was
okay although the point baby so that 1000 entries that
is like a where are these things there was like oh that this is the pot
Mike okay %uh if they're still working on it so they still change it without
fixing the bugs were not get it just right
enright new test well I was like why bother the also-ran anyway so why bother
you its
Nokia this is a agile shop
it was exactly what I expected fun because like I started with
just as we get indication I I do like my metrics to some degree I
if I'm is a process minimalist I don't really like bosses
but but I will dust of metrics for the make sense when my key metrics I like
keeping track of what's going on a project is
account that you unit s are those never work early on Friday will realize
I way lakota right II getting the I like her
because frankly there's no secret that you're writing code
Credit Manager Project the partners will take me to tell you the truth your
developer in there as well
there are no secrets so i cant unit test as a No we write unit tests we are in
fact
game or functions for fun too where unit SEC account
and so here's a graph unit test across five months
many ways a versace is a go up and down like this because you have a highly
unstable system sousa
fine what time line it's easy fast lace from you know sometimes even less than
40 always almost 200 it just seems a very all over the place week to week
now the really scary thing is those numbers at the side
so you take an average week eighty things on purpose I have a sprite
turns out I have 40 developers this is how we test the right in a week
42 overs will write a test in a week
which pays on average they're writing to a week which means
we're not really writing in a bad way obviously not doing much if I pick up I
find the three programs that they're doing something else that we
that's why we down so clearly things were not working well
so be curious is a developer about why can't you write test for this stuff
I inside Iran experiment and so basically I wrote myself a test this is
a right to assess
any possible loan is a fundamental aspect is assistant does least existence
and they argue the loan with them it's a very nice pic absolute of
he was you for the racial signs really great idea
but for some reason they decided that this little number fifty which should be
carefully should be only if that number directly
people say yes get to that number and so you what up finally
about forty different places and 37 other classes that research rather
number which made it really hard to understand what's going on
so Michael test here I i basis set up there
it's very unit s I'm going on a Saturday so I don't get it is a serves as a
mother myself I could do this
and five hours later is not not
so clearly we're broke
well and is kinda they did or yes it was a really nice if not
what happened would have to say that more follower in were coming hanoi
really million people put together really gorgeous system a great
conceptualizations
what happened to it and so
I'll while these we realize very quickly and I some sort of Cali said
is one may live occur this application is not want me like the cup
if I were my colleagues that is very cleverly is really a hundred thousand
lines Co trying to get out
for your five years really want the same strike it's not that big a
really wasn't that complicated miss my college essay will
you come back to see a lot about Jeff Baker's keeps making really wonderful
observations
up with it was his idea about and and move all I think he was right
well now you know what happened what we're going on here
and to some degree courses well where they just lazy programmers
with these guys and he just be lazy about that but I was initially I was
watching these guys they're working hard they're very bright guy
it wasn't now being lazy what maybe they'll be sloppy about
and year perhaps a little bitter that but it wouldn't really seem to be true
either
%uh maybe your experience it turned out yes they actually are quite an
experience these were
University hires they're really not expose agile practices they had to
expose with the program looks like
and some executive it all works it is I was a really good idea to send this
application over to India where we have programmers and let's just work up
and they destroyed but not intentionally
so there's a little bit also going to work is that the Indians didn't feel
they had
ability to say no if they're been told by their
their US counterparts that you have to do this they would just do it
25 know we've been a good answer sometimes
now there's a name for all these things that we use a lot in the industry
we call it technical Dept
but I will say that I personally believe that is another way of saying
wanted these other things so I hear people talk about technical that
I really say what was it about your system was like organization
that allowed you to create this problem in the first place
pretty a fancy name on it doesn't change the online issue
they should not have happened in the first place
so we'll come back and talk about that has some great some degree we I've got a
system now that makes it go away to a large degree
alright so now we start evolving into this
so now I'm actually been decided China I'll
because that's where was the the time and where have actually gone into a
Chinese bank you were consulting with a Chinese bank to break a service where
you know architect to them
now I gotta say at that point I'm I didn't know what that meant
I was fortunate I was working with a colleague Jim Weber up
publishes books about this stuff in fact I think he's a chief site is now for new
offer J
I I really see if we're very bright guy
and the challenge Chinese banks were facing wars they have always backing
store things they want to do just like everywhere else was doing back
mortgages and loans at their bank accounts I want all these things
and unlike some other Western banks typically US banks which
you do all the things from your we are working with teller
they also why do these things with every other interaction technique
they have with the customer they want you only go to an ATM
lol now in West I can tell you I state that was not possible
but in China they said was actually feasible in fact there there even their
smartphones back then were able to do some these transactions
that we in the West were just the at that point really about
so they really want to get to the cynicism every possible way
and we're running basically 24 to propose an alternative architect to try
to get basic one of our clients
up a foothold in the Chinese banks help them develop software
basis I we really need to bill is some sort of Pop Sub us
that in fact we were destroyed take advantage to the fact that if customers
in front of me
I want that challenge has a customer the screen back into the
into the clout I have a customer
and I want all these other things that originally customers or to wake up and
say oh you have a customer
well we should buy get a loan or home stereo system the other credit card
or maybe we want to refinance as mortgage with these will service the
wake up and sorta say
always do that now how do you say that back to the customer left back to the
channel
but the thing that you want to do was in Iraq said is sorted broadcast by these
applications
and so is selling a really nice try to put in place
I'll any fact the climate checked its a
they decide they really want to go buy a system from Citibank in the
North North America because citibank is Lester and therefore must be better
the fact this evening for the system in the nineteen seventies any when
supporter tellers
or anything else no apparent was lost on that
so it was a nice idea but worries I did walk away with
was in fact going back to jeff bayless five thousand lines code
I've began to believe there is another way of thinking about this application
as begin to believe that in fact it's really
25 20 5000mah Nicole will service is trying to get out
that if I could win back and restructure that application out for a restructured
differently than what we're talking about four they didn't have to be a
stone-age
so that's 2005 other now I've been
that sent back to the states working with the medical systems company
I because I get new ideas here just fact they always rejected but I'm so we get
new ideas
I'm always dangerous you ideas I'll
and we have a system where the the city this company was in the medical systems
business
they may you know x-ray machines and and cat scanners MRI's and all these things
and so the heavy idea that you actually want hospitals
because if you run a hospital then they'll buy your cup so they were really
run the whole hospital
and they were basically trying to rewrite the platform they decided that
of I for Israel to see so this story right jock
and is like but that's not going to be different than the sea implementation
and
week at times just not worth it so we suggest that pops up again
says you have all these themes that are trying to collect data
a happily other parties are interested in the patient is extended although a
lot occasional out it elevates
what's on your doctor you know the staff running the emergency rooms though they
or the critical care units and of course accounts they seem to love things about
this as well
so we propose against or pub sub base says we want these
instruments the published little not get some information
about what's going on and we'll for rafters negative if the parties
so if you get an MRI great steak & and probably doctor would like to read it
and perhaps with therefore that
critical care unit East know what's going on across the account loves this
because this
go to chain to Cheney we get more money
well and I we should look at these little nuggets that you would publish
it was a Swiss star thing about his personal water published
conclusions I wanna published here all day
because you know I was that just x-ray images over to the patient or so not
even to that
critical care unit idea said conclusions
what is I figure out as a Service published the conclusions
and so I i get if you have a cat scan is J ily
cast and the conclusion reached by the team doing the cats stand may say
yes there is concern and that may real alarms on the doctor system is so e-mail
real alarms other places
but published the conclusion there's a reason go back get the original data
fine
find out later published that was also important to say this information is not
always good
know your blood pressure was whisper flee find six months ago
does not help you today however
on probably your your flight I a
that probably have changed in the last six months so different date has had
different longevity issue published in the cloud and we thought was very poor
the
ages information now so Laurie fine we had in mind
sorry if you're in critical care situations far trade is the most things
you think you will be taken
make maybe every few minutes so again this is our idea how to do this things
again the client said no thank you we just want to rewrite our job assistance
so up West for this presentation to get actually get to figure out that have
been very unsuccessful in my career
but I still get paid well which is kinda a good trick
I'll well
are a truly way along well it turn out right next door to this vocal systems
for was is a
financial firm that does you know finds itself in the US
up very successful farmer I'll
effect so successful they don't make a good client yet classic lines that are
desperate they let you try things
but a client that is the success was very very hard to change america's is
is all sort of things to try to stop you like why should we do this
and you can't really answer it on faith this is whether speaker clients
%uh I turned out I decided I didn't want to work with them because that reason
boyfriend Jeff Bay he got sucked into it anyway
well and what he did was he said well we're not a religious system but we'll
prototype when you sort of style architect
he in fact was trying to get the run faster they were all
you know what every three or four months we do really sort of thing he was trying
to get them into a different place
so use for it I V uses marked except the real thing but a prototype and a crazy
things I call that they see a service principles named after Jeff pay
and is too profound observations Jeff make
first evolved he says okay to run whether one virgin other services same
time when I heard this is like jeff is wrong we r we got we've got a new
service coverage your race using it
he says no you don't and I i try to explain to him why and I could come over
the reason question remains you know it's
bad idea of stuck in the Sony jej I'm back its own it again
so he said that and was like okay this this kind of thing in any sense
something else really strange
he says the oil else is it that way once or the time that's the point
you cannot wait to service only one me the phone up
so course the fuse fun to say the voice service
the five new for the client that works for that service
you need to make sure that order and no issue just as makes it more difficult by
the way to root for place with a virgin to kill all the version once Gazette
the slots coordination resolve these two really simple ideas
is that we sorta helped broker the dependency upon that old sis that we've
broken the coupling that all cut
yesterday have so what do people get services running around doing almost the
same thing
what you have to say so what and again I do have a good answer for that
now assist these guys were basically deploying about once every three months
with Jeff little rules there to play about three times a day so he had a
profound impact about how they
how you do that it's not just by basically going 3 breaking some
assumptions about how we had to do things also very quite profound
so I will consider that actually up some over successfully was a poor that wasn't
a real sister
buddy course gave even more dangerous ideas
up so I suggest me again in
he and I had up to I'll a large manufacturing far
are we are manufactory particular and we're trying to put this together
for those guys because they had to replace imparts an existing car
up the basic the parts were getting at
somewhat antiquated need upgrade the parts can really save much for about it
but it makes sense when you hear the main
well and they and it turned out to just
a lot of variations on a fresh you're getting to some time for call center if
they are found a car needs to replace
sometimes a customer call up Sabah have it I'll have a car these to replace
maybe it is have to be the a garage goes to get repair the notice that has that
party's be replaced
so it turns out we're getting information from all sources sources
and lots and lots of different formats and different information
so so the challenge now this is this
this the company has a in-house bender up
basically to a give yeah I don't worry us but getting outfitter had at
and the they estimated to change their existing systems in order to accommodate
this
work placement was going to be about 18 months the TAT months
they can modify the legacy system do that other business of that was actually
in fees we need to have this thing done with much much much shorter time
so good just for client as you go play
so again I suppose the business so what do we do in that environment well I came
up with this what I call the pinball model
and I'll be at Luther I talk about a little bit but basically the idea was
I have these defamation packets and basically I have a lil ideologue
information or to their place in or you could replace for successful
but I'm starting out with different little tidbits corner where it came from
so maybe I know the name other
a person and when he bought the car maybe I know the dress up the
residents that has the car may be a really like he actually have the car
people number
but I have all this other stuff and we said well you really want to do is we
want disorder
take this little pen ball it bounces around the various services and get more
information cialis all feel that
those a theory look kinda bounces back in around trying to get more information
fill those fall in which case
now we have a successful order so I we can I do that
well we started a funny little services
we try to find a service as small as possible so the responsibility was
basically just
feeling a little bit more information we just wanted big each
so what services smallest possible but still does something interesting
so for example maybe have a service that is able to inject is
the OAAA information of some sort but it needs to have a VM
anything I have some other information or to calculate that
and then maybe another service that the to get the van but has have a name me
another service
need if you get a neighbor has have an address
so what I did was we start a these packages start a.m. in the services
so you know vince says the one key things I want so I
I sizzle packet of the vid service same here up
your key figure out issue this stuff out ace as well though no I
like a few active and because a I I don't have been
but to but he was a big ego this other services help get the via
so we go down the other will service the sale I V I can help you but
give your name well I'm so I don't have a name but this is also so here that
if you actually have your address and so we sit over there say oh we have an
address
so still the name and then we sort about 3 p.m. we can't go through again until
he gets
more mation more information more information he finally gets filled out
completely
so the idea nears the end of its we looking at a course that this is a
legacy system has lots and lots and lots databases I mean oh my goodness the
databases
but one thing is we decide it was we wanted to carve up the databases
in terms the responsibility any given service can work with tables
but they really only service allowed to touch those savings
the only serves it turned out the most is the services were serves as a tag
around to wait a
goes to a table seem to be where the action is
we sorted married to stack is information together in making
conclusions
again think back to the medically as fewer try if your conclusions
public service so we took the database we saw red card is often found get what
they say
tables is the okay you're the guy don't these tables and we save a dollar table
very nicely
and basically we were able to take their system live in nine weeks
so close I was expecting you know you know 5080 months we went live in nine
weeks
ideal say class very happy about this a
reputation was enhanced up and again
just for clients who wish to place if they so wish I was very happy with that
I go to so that my success
summer summer the up observations we got that again
adding onto my new dangerous knowledge
well I begin to think about when I used to talk to you would you ever back in
China about this is
wears a service that was a bounder a service look like
and I started driving back on my own background my own background I've been
doing I think Molly for
all got a cell was 25 years now up
so some I got to wifi and I begin to think that this class the services were
just like classes the traditional sense
that he has to be here and they have to be carefully data for the capsule a day
is really the tables
that they are allowed on and you don't want to share the day to anybody else
recaps place again police still need to do something not just that the data
backup any by US
the recent closures very much like good service
so editor know these things got really small we used car it up this small is
actually get quite
tiny I also small talk background I was people talk to small talk and
influence and stuff like that that was my first article I
so I was kinda swell but with a smile or in with talk actually
actually tallest tower s kind word beat the crap out of me was kinda another way
of saying it
by teaches basic basic ravelli about you can these are not
some pretty these are Mathis if I have a car to suffer teen I had appeared in 25
cents
if I turn use the word up calling this kind can't call
assets over t think 25 says please you're talking about
you're sending a message it turns out that way of thinking really translates
very nicely the service think
so after being beat up for many years and object modeling
I begin to think this way as well up
and again the King Catholic turns out to be key in fact making sure nobody
she to look to somebody else's tables was kinda key to making this work
now we work with our little problems so this is a city where thinking about
things we have
issues come up there were I get such a surprising
thinking back on it but again we always surprised we don't think about it ahead
of time
one is is we could hear what's going on
yet pinball fragrant embossed NCR and sometimes the ball we just keep going
round and round and round and
we way for the drop out whenever dropout or such as we go back in there and it
all starts like
where the ball go a as so we had we sorta had to start doing some
yet rocky and logging in and how you count cycles which are trying to
refinance on these things
so these that's cool so much better job now but there's a llevar los
that was the biggest issue base issue turned out to be the programmers
themselves
and I had a it was a extremely righty a
I think the guy who started cruise control ritually he was on the team
hedge FAA on the team in the course he's a great guy as well
so I love really guys on Etsy but they've never had filed a car problem up
this way
the very front returnable services that in caps later around the concept and
and disinformation around the really I thought about found that way
so I to roll over least one day 7 of the London
released two came along and they serve start a guinea pig here the
is a more sharing the tables so some other stuff kinda begin to fall apart
up does it work in fact we stepped up delivery very fast certainly compared to
the old cycles
we're so gay rave reviews in the client fine still love this
but the Sun agree that pure implementation I had a moderately my can
bomb I'll
was forgetting to or crumble bet %uh there was a technical day at
ThoughtWorks
up and they actually this project present a poster that
and go to war he gets like a place where work for tackle poster
but the sudden you're the poster was what a bad idea this was
so I your lists of it by that so I go back and say we delivered but maybe it
was in this a good idea
because some the issues we came up with
alright roll the clock will further I'm often live in now
a while I go back to this so now I have a new viewers this
again a little smarter I think I'm smarter I now begins to bleed 2006
there is no such thing as a five thousand like oh services way
to make that may 5 highlights the QoS the real size for service
and so I verify my I think even further
alright so now I'm in in London a I'm working at fort ford's whereby we
weather spotters here
I'll a great company to work for
it's really hard to describe what they do because if you look at some other
products they have a
energy comparison phone comparison a browser plugin co2 will to our plugins
we sell we sell parrot cages online we have a warehouse in Suffolk
doing that stuff is currently actually evoke a truly interested to perfume
firms
it's really are described below the fact that we're probably very
technology-oriented
in like to mark it on the internet other that are almost no
rules for all that so these are by our experience is that they're
because a course I got all these ideas now starting back in China going back to
the states now
coming into forward an York first probably get avail this we r
we're having these were doing ever average sized E
an average size a Google spitting out reports that you like you wouldn't
believe
about higher performing and thinking that report data and analyze the essay
is very few becoming very probable because he actually got there
ever does on internet the prior you lose money about on about a to the 10 as you
get out there
with the numbers a really horrible out how effect and effective it is
but the trick is a turnoff is bad a and keep good too
and how fast can I do that makes all the difference in probability
so course now I got great new ideas on how to build a system to accommodate his
business
so I said pops up model if I goes to show you some colleges faces
already came out the mighty others Aversa
latest faces bill to the Ruby call render think it's still Ruby
I still recall read this faces another though if I'd ever use them
I'll I was trying to use it you will see how that story turned out
so i thought well what will I do is have again this list for our database
let's make sure we segregate table not let the sales we share because we
believe a new database
I'll have to share that well several services will
ages their Savior analyzes data popping out to people or
it's just that like these marketing people so would be all
precursors because they analyze and pop for the out to this
agents say here so these care about it's very much like my medical systems thing
all over again
and so we start to begin or to make his recommendations so the more we
understand what they're doing the markets or take this and make a clever
services as 0
here's a new keyword to try or here's what you should turn off
they would turn them off for you as we continue to evolve the system
so you know it's very excited by this we're using of Fort
or 45 min tation are a key and I
ran across a problem with the of 14 did not understand the architecture I was
fine if Matt
and be all for me even more difficult I and i have a challenge that the
for the CEO the organization was a former Oracle guy
who says all you see a big database analyst from goes away
so rejected I'll
there is enough we come back to a year later
same company and we started basically a bit at an agile card while because while
these I did bring into the company was agile faking
not just as you're thinking for software development but I don't think you for
everything in the company
whether it's marketing and how market for is going to have a
we just regard for that in we show them the customers we have
retrospectives with the customer about stories we're playing counterpoint
we put actual everywhere so we we've got ourselves elektronik walls for tracking
very lightweight
while these we start heading into the card wall was we started basically
to a setback in processing these two reports
a story published the alert for the card wallet tell people you
card wallet something interesting is gone up another words the system we
reject the year before
we started implementing again any fact
we continue this is that we actually went to clusters
we're on five to seven thousand jobs today
use fire is 600 so far so different services running
across that period all publishing into the sort of architect
it's so some degree we finally have delivered a system those long lines we
talk about
I'll now observations and recommendations from
in revelations were from that experience
first of all what exists these all services became almost as those with
we didn't really care about re keep me around for long periods it was useless
witch one way road again
they became literally very disposal entities there's no reason not to keep
it if I don't have to
and and it turned out we lose a couple the things we we really want them not
every relationship each other so maybe this your database
people are coming ports maybe the pass a restful pakula chasing pack in each
other
but fundamentally don't really care much about each other that far
are now the only thing I didn't like about that is they still do that this
phone rang and then this one ran into this trend there's a sequence that was
forever
implicit in their relationship so the company that exist
we also basically got real unit s
well saw your ad units were for small talk about her lines Cup
if you do you test to try to understand our lines could help you design it then
you're probably in the wrong field
so we were we did that but what we can do is required diesel services
if they could not run could find the will to report if they got some cars
from somebody else
they should raise your hand and say excuse me I can run
and we would take notice to that effect big really big monitors in the
in our room ago red we go chase our probs
that became our basically our concept a replace the unit s
because what our services work fine only with a bro
use the group was a very strange reasons we go chase down the prop
a unit test were not helped us find us for prop
no side effects that was we also got rewrites FSS
you say well you got a complex system you need acceptance test
also I think back to India me how complex is there be months ago
I could write some says again rock this complex system
so it's gonna be complex give up on that boy to like
there was we like them on the business that fix but business metrics 580 is
how much is clear: reflex to your how much money you make I meet Eric age to
be so yesterday
we decided that turned out to be a great acceptance tests
first of all it's not ready once when I deploy twenty all the time
and so with that with this better start going down we are suspicious something
may be going wrong with to check into it
maybe it's our software some we deployed a maybe it's just bad luck
we have the oil prices who knows
but a suspicious %uh there's a paper given that the
the go to conference in our house last year
Anna guys proposing basically you should write your only real except assessed
is business that fix that is the true black box test
I don't understand anything about the internals to measure the business
if you measure the business is a very robust sort s
and we found that be true as well deciding factor that was
we don't care what language you writing services then
let me say that workers got excited by that they start playing with all sorts
of things
we upload closure would upload node.js you right in Ruby
maybe write something else we don't care online xoxo
when you pick up the whales coding in and is the closures like
it's our lives to understand every round Ruby I don't care
and so the prayers got quite excited by summer this stuff any
drug lord motivation as well
sup where we stand today well
while these weird hairdo we remarkably few years ago use weights which says
energy switching the UK and UK its which energy plan
energy providers same way we switch cell providers and Russ the world
so it turns out to be a fairly lucrative business but the system we had
which is 40 watt subs or switching capabilities
was a legacy you know Microsoft that Muzaffargarh
Microsoft stack this time web servers app servers sequel servers
i interface UI interface their everything was exactly as designed
we want to think about that differently because it was Kb ten years old
%um almost no primary was ever around what was written
we really understood how it worked anymore dutiful to change
we had two influences on how you want to we wait for the same team lose
you turn the same team loses a rewrite it you get the same architect
we want that switch to the other team those with little such small services
and we got a couple those guys and brought them over
and they had two influences for small we begin to believe that
events are more important than entities
we think about if these will be fine right object modeling you know there's a
customer there's a sale
these are things that you wanna hang your hat on
but according to store the event world and not really there
so what's really there is it turns out in this comes from up
you know where guys really in the plaques which is about I was about
Google
they cool base your report just records also salute events
if you go to a web page 35 the record if it pays down to find the search
their court something's wrong with it you click on Add they care about
we click on the 33 not for city when you click on the respect thing that they've
suggested as important to them now they don't know why it's important for the
record everything
because it might become porn in the future we won't take that approach
other influence was we thought we actually are all system
could record everything because it could have a room they wish to slow
we typically want it sorta say we lose the old stuff
your history is very important to us again going back to Google
and here in florida law by closure good closure busy as the idea that
data is immutable you what you create data if they're
you can't change it me I was sitting here to give a presentation
that is a fact if I can stay over here now is also a fact
but invalidate that fact that the perfect in fact as well
let's keep both the fax again we're forced by the thick
so we took the old structure which was basically you know as you would expect
no towers of stuff so need all over again
because they have diverse ownage which bar services
we also today we'd like to in runtime iniquity reporting database
it was not nearly that clear reported a basement back and forth back and forth
and eventually get back to reporting database
up it almost never worked is
every day or something at Pipeline a broker with that report
but the story is stuck with so are your goals
basically up
we work this Fri because we think if we really is important
we want to be able to run real time analytics because it's a real time
business
this is a business in fact that is all about making sales make it right this is
we were able to figure out two in a month we make money
that's an insane is they whirl and we also basically want to make sure I
data was easy to change your sister so we create our self aside a single said
begin you will like sore though our services again looks like things like oh
you see a post Co
or or use your email address for freshers you really address or
we just had a page and or maybe our performers are systems running a lil
slow
who eventually start pretty easy to a clap
it turns out we sort group them together you get really think these going up
but this is not is the year where the customer
where is the sale it's kinda scary across the events
stream ovett boysearch she is sleep patterns what you take the postal
address the email address
you probably have a opportunity to sell energy plan
but whatever is that the email address changes that Prime be somebody
US move it to the house new opportunity
what postcode recipes well that guy's move so maybe another opportunity
we saw in a bit back you have a say oh my goodness would like a little bit data
I know our discover a use for I didn't free discover the use for
as the Google think just like everything your figure out
useful these two layer we start doing that
so we have guys are producing all these sorts of events pushing been there
we have consumers we do a lot of civil argue the Cisco now says
yes we do like math up we also writes real time things will
double proscription dazzle ruby script just like data
is true about various things now weeks I we park all this data into
kafka Cascais is a prices for
be given to Apache from Lake ends this is the latest tracking system
we're tracking all that stuff relationship stuff that that
LinkedIn worries about it seems to be the low cloud and
event very nice because these events are related in various from
sundry waz very much liked liked it
so use that put that information there ok after allows
your streams to wake up in keep playing where they left off
so every story suggesting things were discovered cross-selling opportunities
rediscover that you know if you're coming in on the red side
we passed out to the Blues good guys book I've passed away traffic back
so across only product causes receive the patterns across selling
so now we are reinforced that with better advertising patients
we also see patterns a you securities we actually know map
just like like this data ready for a very is now says we we will also take
very pretty little maps the tell us you know what's the universe
what pages are really getting hit hard where do we need to reinforce ourselves
work love you love you from a shit about that and while the side effects this
comes from another presentation on a call the
programmer anarchy are very much like the presentation you heard on the first
day
about to get up you know we've basically run in that same for environment
but to some degree we feel acceptance test unit série factory patterns all
those things
are things we do to keep a big Stonehedge running insane
that's what we need to keep its sane and that environment
you kill that if I really runny honey Co services
all those these go away it has it actually was
I was quite surprised by this basically a our architecture is now
influence our processes and very very fundamental way
and again I was against five that's a result
so where we stand which are observed technical data in this world
when you think about all the reasons we had technical that
some degree the call the technical debt the impact it had a good accuracy
through grabbing that number fifty using in 37 other places
it's hard to do that with the service
miss services by their very nature you scary for greta is very for their
service so there there's a chase interface a restful
it so it turns out is very very difficult for our lives code
it was your ass love you soya months ago rewrite
maybe it's wrong rewrite it's not a big deal all airlines echo you have not
impact the entire rest of the universe
and so some degree this architect is also reduce the risks associated with
that
I no longer worried about program is not understand enough about this
so it's actually not that from quite a bit as well
so conclusions I say so far because I think this is still a journey for me
up and the industry to go on but the final principal
about micro services they are very very small
you know how to tie the score is probably actually a big service these
days
and I just hits also think you do need to make sure that
the couple as much as possible we started the couple evenflo things now
it's time to look more pops up
and the coupling that as well up moreover since
not only dahlias okay we probably hurry chip
because again a at the ok we can actually marchers is in the cloud the
service is not a vote for three months
was kind of to an apt C you get so upset
well certainly source mon-fri each other reporters also a key responsibility
every service to publish
important events if you did something interesting you should publish it
don't know if it's like your requirement for that a says we have a need for that
day
if you think is if think publish it we're finally in the future
and find the whole concept was in applications world I have no idea where
this let's really turn it does not fit
anymore so it's kinda gone away as well
I think we are in fact Billy living saw for Asus minority here is
is basically up that we really have a long list system the system this is a
so this is where billion out two or three years old but almost no service is
much more than six months old
in fact that final service is actually quite an agent service
eyes very much for the human body mean your if the cells that you have here
probably not say when you're bored with
yet we're still I'm still me and we were the better systems that way don't worry
about the individual parts
the if these a-holes going to survive quite a bit now we
in four we are very aggressive about the following on average it will first offer
perspective acquiesced
soon as water this is the last time measure where the voice of the
production every three and a half minutes
well miss after every partners 52 pretty silly production every
twice a day that's on average so just putting out some gets all her life these
risk is minimal
the iraqis minimal we got the business venture so the other
make sure things work we just popping out see what happens popping out see
what happens
up we discuss the first place complex system
if you think you will have I giant s insurers is perfect
you kill yourself sows accept that in right to test around business metrics
I N again en route to impact your heart
well the hardest part will be in fact Getty
program is used to thinking this way it is not we've been trying to think in
stone age
this is not stonehenge and so if we five if we drop our area to the team is doing
things like this
therefore pretty quickly but yet to start out by yourself
try think this way you will probably get stuck
up there's a fear corporations I got a business degree among other things
a the ideal corporation is we assume a
corporation theory that you're running the business there's gonna be a business
forever
we're not trying to do anything stupid to kill the business and I think the
same thinking is be applied or software
that we do you think about software is based on these will be running forever
think about a system that way don't think about for these corrupt next five
years when turned off
I think the statistics are out for a few years ago on average we plan versus last
10 years
in practice they live seventy so when I very good I guess how long since left
but assume a be there forever
so that's my story my journey micro service architectures
I'll I've come a long way since the associates part I think
up I think I begin to carve up this is a very very tiny pieces
I find much for fun because I Royal Thai peace give deployed in
and feeling like i for something every day feel really good about myself
verses by all IBM days where I work on projects that delivered five years later
not particularly satisfying work
alright appreciate it thank you
I have any questions thank you very very atop
so about someone knows I'll experimenting a lot with something that
could support this architecture greatly
very small like so after based stuff right
his his basic thesis is that you can't support like
adequate a processing in a system like this
because the time the spencer miss you realize thus realizing those passages
between the services
is going to inhibit what you're actually hopefully gonna be able to compute
digit doing the services that you guys worked on were they
computation power over you worry about sources
no not really he must was the right time is spent basically getting
gave reports of Google audit now says the report is very straightforward
racing time down relative to bring information across the net
and so we have got anything that that's where has that characteristic to it
we're all so basically it for we choose businesses that have passed the fax like
fast business the backside we only gave that is the build-up life takes five
years
figure it out we would have with that service so to some degree we are working
in
in rarefied environments up but I I think that
cuff without not I'm okay with that thank you
force
fight for Jess so
once you start breaking into small services a
naturally the question arises even before this review found that the
question of dependencies
and the how to you to 'em deal with all the dependencies that
might arise between the services unless you're
there's this is a case where there are no dependencies but
well they are going to be there at it we that's what we have for dependencies
among
so I can analyze the cooler pour les vies for the Google report
possesses is relatively simple sort of things like that
the business survey is is me case is not that complicated terms is this is for
is away said before you know you can make to the many suffer the business
itself
working to Bates business they're fairly simple is free for
first match out there google tells me how well they did up all the report
analyzer Ford your cheese my values on those assets
and those four cycles are free easy to put together now
the knowledge of how the system works lives within the team is working on
we don't write down for amongst them they do have the understanding that
and us 50 people and now the team because the knowledge stays in the city
but you are businesses are simply not too complicated
your parrot cage your repair case I'll pick a ship your case to go back
you know not the most profound this is %uh
and could use because to a you mentioned think that the first
which is very old idea from the Lee eighties
and you might be easy a
what and other a first-time at the and their sup
from the MacBook Pro scalability because title match
maybe me high number of properties was not
got there are many ways you can I know no
match them how do you solve that problem because this is
complicated oh I i use that comp if they were working at the time
up because the number is this right really quite clear
I'll now I i'm not say we wouldn't have a problem with the actual
said yes the course he said no so I can I could sit here and say work fine
but we don't really know I'll I i thought i was it for the that we be able
to
you know account always was every bit that had had to do with everything some
zzz's than those over there
up are the biggest for the reduced faced challenges that system was
we did did have local subscribers and there were dishes slavery thanks
but you're definitely right a for this supposition
a desktop or physician aged with it basically
if he's also the critical come across were flashing red lights on the screen
and stuff like that
but because or even more critical so I do wanna over designed the data
concerning medical fields where they get crazy with XML once upon a time it
builds really elaborate stuff it
I was such that all on making very very simple 34 conclusions or base
no urgent critical normal and they just
that's all i care about. I'll it was still run race run legacy system which
had holes at so I just had to be your trusty with that but I don't know
we shipment up
hi I I can see how system you talk about the Arctic
work well for systems where data flows in
primarily one major direction did you ever tried
by this to a system that requires like user experience feedback
where there's things like air-conditioned up immediately back
are to some degree you know the the web sales with the use which we will use
Wittig
as a base is a web-based fun and highly interactive stuff I'll
it has a bill those characteristics but we're talking about
a I would say the more than e-commerce sort of sales come a concept so I was a
untested that feel argue with ease up doing I'm sorry to work I start work
less money for online newspaper some good now going to take love these ideas
and apply them to a new domain
I'll the online publishing steps were see how much this stuff works
I'm carefully if we all work for us and for work but for it is a
a relatively straight place in some ways
also therefore we developed a venture that some ways
so I wouldn't say imply works for your so
the 100 line service really actually do you enjoy
and i won moves to this thing for 0
but what about the orchestration and discovery a
and rowdy best certainly not a online services
well first why I think you doing orchestration you really got class
so I don't believe in orchestration you know
work do you ever there was a dozen ever orchestration and basically you believe
that God class that we
you used to have in our big systems that that every by flows to the guy class he
decides who gets the next I think that the dead
that idea me the story does it as a scale yes all those other issues
I but for this or distribute the intelligence that's why we're publishing
to a bus as I have something interesting
you subscribe because you're interested and what the couple those few
if i won unwelcome structural have the couple interest
and pops up stuff those live reports on that site
I'll I do believe if you get get stuck in trying to build this guy classes or
got services or
waco orchestration whatever yeah if I gotta go down a raffle that's gonna kill
you
OTAs the whole question to
oil a with I at I will be the first say thank you very much and I could try that
again
yes so especially start talking a data flow systems
had a deal with different time scales and events to differ time still systems
because
a lot of times a that seem to be synchronized across services
so would you do with you have friends and services that require some
I guess similar idea temporality
well we go to the have that in our industries that we work with
me too costly we have to sort synchronization is I can I was the
analytical report will have
but that's a through the highest little tickle the fancy hat with
we have farewell to get you think the case for it to things FB coordinated
therefore for the next thing happens but the entire probably
you're dropping his son on relational store and serve keep waking up enough I
again you can find it I raise Lance thank you run
on but general Wii with Wii
for the system to fail then tried it do feature prevention
goes back to work whole if you think about it test themselves
are not leave in any way whatsoever this test or they're just in case something
goes wrong
anytime I use the word just in case you're it may be necessary
I've now moved outside the lead at a World
I'm doing something be almost fire up i really wanna be just in time in these
sort of things
I really have a system fail fast then to defect prevention
and so that's why my unit test gone away because I have
before you leave your twice a day I have a business basics tell me when I stood
up
I don't need a ride to assess up so to some degree
the temporal things I would find itself is a failure in my system first before
trying to produce
four-nation up but again we want to have that I domains with nothing I can think
of
and I gotta shut up apparently if that's all in waco calf written we have more
time for questions
but thank you fred thank you
