Microservice Scars - Alt.net 2hr

Microservice Scars:
Lessons we learnt
Abhaya Chauhan
@AbhayaChauhan
www.abhayachauhan.com
Joshua Toth
@TothJoshuaJ

Talent
Management
SaaS
Context

100% Cloud
based
AWS + Azure
Context

25% growth
year on year
Context

PageUp =
Market Leaders
Context

Fragility
The Monolith
Context

Complexity
The Monolith
Context

Innovation
The Monolith
Context

Deployment
The Monolith
Context

Production
Hardened
The Monolith
Context

If you can’t build a monolith,
what makes you think
microservices are the answer?
Simon Brown
Context

First rule of Distributed
Computing
Context

Enable
Evolutionary
Architecture
Context

Microservice Scars - Alt.net 2hr

Sprint Zero
Backend
DB
Frontend

Sprint Zero
Elastic
Beanstalk
S3

Phabro slides
had to be
removed.
Please contact us
for any queries
Sprint Zero

Development
Practices
Sprint Zero

Visualization
Elastic Beanstalk

Synchronization
Elastic Beanstalk

50 shades of
“fuck we can’t
roll this back”
Grey
Elastic Beanstalk

IdentityServer3
(Locksmith)
OAuth2

Request
Response Pain
Messaging

1 to 1
communication
Messaging

Event Driven
Architecture
Messaging

Resource Intensive
Fault Prone
1 - many Communication
Messaging

Simple Notification
Service (SNS)
Messaging

Mobile Devices
SMS
Emails
Messaging

Mobile Devices
SMS
Emails
HTTP Endpoints
Messaging

Mobile Devices
SMS
Emails
HTTP Endpoints
Lambda
Messaging

Mobile Devices
SMS
Emails
HTTP Endpoints
Lambda
Queues
Messaging

Messaging
SNS + SQS = Amazing Service Bus

Fully Managed
NoSQL DB
DynamoDb

Hash (Range)
Partition 1 Partition 2 Partition 3 Partition N
Read & Write capacity equally distributed
Max
400kb
DynamoDb

1 Read unit = 4KB/s
1 Write unit = 1KB/s
DynamoDb

Write is 20x more
expensive
DynamoDb

DynamoDb
{"Key":"Mauritania","Value":"42803"},{"Key":"Mauritius","Value":"42804"},{"Key":"Mexico","Value":"42805"},{"Key":"Micronesia","Value":"42806"},{"Key":"Monaco","
Value":"42807"},{"Key":"Mongolia","Value":"42808"},{"Key":"Montenegro","Value":"42809"},{"Key":"Montserrat","Value":"42810"},{"Key":"Morocco","Value":"42811"},
{"Key":"Mozambique","Value":"42812"},{"Key":"Namibia","Value":"42813"},{"Key":"Nauru","Value":"42814"},{"Key":"Nepal","Value":"42815"},{"Key":"Netherlands","
Value":"42816"},{"Key":"Netherlands Antilles","Value":"42817"},{"Key":"New Caledonia","Value":"42818"},{"Key":"New Zealand","Value":"42819"},{"Key":"Nicaragua","
Value":"42820"},{"Key":"Niger","Value":"42821"},{"Key":"Nigeria","Value":"42822"},{"Key":"Niue","Value":"42823"},{"Key":"Northern Mariana Islands","Value":"42824"},
{"Key":"Norway","Value":"42825"},{"Key":"Oman","Value":"42826"},{"Key":"Pakistan","Value":"42827"},{"Key":"Palau, Republic Of","Value":"42828"},{"Key":"
Palestine","Value":"42829"},{"Key":"Panama","Value":"42830"},{"Key":"Papua New Guinea","Value":"42831"},{"Key":"Paraguay","Value":"42832"},{"Key":"Peru","
Value":"42833"},{"Key":"Philippines","Value":"42834"},{"Key":"Poland","Value":"42835"},{"Key":"Portugal","Value":"42836"},{"Key":"Puerto Rico","Value":"42837"},
{"Key":"Qatar","Value":"42838"},{"Key":"Republic Of Korea","Value":"42839"},{"Key":"Republic Of Moldova","Value":"42840"},{"Key":"Republic Of Yemen","Value":"
42841"},{"Key":"Reunion","Value":"42842"},{"Key":"Romania","Value":"42843"},{"Key":"Russian Federation","Value":"42844"},{"Key":"Rwanda","Value":"42845"},
{"Key":"Saint Kitts And Nevis","Value":"42846"},{"Key":"Saint Lucia","Value":"42847"},{"Key":"Sao Tome & Principe","Value":"42848"},{"Key":"Saudi Arabia","Value":"
42849"},{"Key":"Senegal","Value":"42850"},{"Key":"Serbia","Value":"42851"},{"Key":"Serbia & Monten","Value":"42852"},{"Key":"Seychelles","Value":"42853"},{"Key":"
Sierra Leone","Value":"42854"},{"Key":"Singapore","Value":"42855"},{"Key":"Slovakia","Value":"42856"},{"Key":"Slovenia","Value":"42857"},{"Key":"Solomon Islands","
Value":"42858"},{"Key":"Somalia","Value":"42859"},{"Key":"South Africa","Value":"42860"},{"Key":"South Sudan","Value":"42861"},{"Key":"Spain","Value":"42862"},
{"Key":"Sri Lanka","Value":"42863"},{"Key":"St. Vincent And The Grena","Value":"42864"},{"Key":"Sudan","Value":"42865"},{"Key":"Surinam","Value":"42866"},{"Key":"
Swaziland","Value":"42867"},{"Key":"Sweden","Value":"42868"},{"Key":"Switzerland","Value":"42869"},{"Key":"Syrian Arab Republic","Value":"42870"},{"Key":"
Tajikistan","Value":"42871"},{"Key":"Tanzania, United Rep. Of","Value":"42872"},{"Key":"Tfyr Of Macedonia","Value":"42873"},{"Key":"Thailand","Value":"42874"},
{"Key":"Timor-Leste","Value":"42875"},{"Key":"Togo","Value":"42876"},{"Key":"Tokelau Islands","Value":"42877"},{"Key":"Tonga","Value":"42878"},{"Key":"Trinidad And
Tobago","Value":"42879"},{"Key":"Tunisia","Value":"42880"},{"Key":"Turkey","Value":"42881"},{"Key":"Turkmenistan","Value":"42882"},{"Key":"Turks And Caicos
Island","Value":"42883"},{"Key":"Mauritania","Value":"42803"},{"Key":"Mauritius","Value":"42804"},{"Key":"Mexico","Value":"42805"},{"Key":"Micronesia","Value":"
42806"},{"Key":"Monaco","Value":"42807"},{"Key":"Mongolia","Value":"42808"},{"Key":"Montenegro","Value":"42809"},{"Key":"Montserrat","Value":"42810"},{"Key":"
Morocco","Value":"42811"},{"Key":"Mozambique","Value":"42812"},{"Key":"Namibia","Value":"42813"},{"Key":"Nauru","Value":"42814"},{"Key":"Nepal","Value":"
42815"},{"Key":"Netherlands","Value":"42816"},{"Key":"Netherlands Antilles","Value":"42817"},{"Key":"New Caledonia","Value":"42818"},{"Key":"New Zealand","
Value":"42819"},{"Key":"Nicaragua","Value":"42820"},{"Key":"Niger","Value":"42821"},{"Key":"Nigeria","Value":"42822"},{"Key":"Niue","Value":"42823"},{"Key":"
Northern Mariana Islands","Value":"42824"},{"Key":"Norway","Value":"42825"},{"Key":"Oman","Value":"42826"},{"Key":"Pakistan","Value":"42827"},{"Key":"Palau,
Republic Of","Value":"42828"},{"Key":"Palestine","Value":"42829"},{"Key":"Panama","Value":"42830"},{"Key":"Papua New Guinea","Value":"42831"},{"Key":"
Paraguay","Value":"42832"},{"Key":"Peru","Value":"42833"},{"Key":"Philippines","Value":"42834"},{"Key":"Poland","Value":"42835"},{"Key":"Portugal","Value":"42836"},
{"Key":"Puerto Rico","Value":"42837"},{"Key":"Qatar","Value":"42838"},{"Key":"Republic Of Korea","Value":"42839"},{"Key":"Republic Of Moldova","Value":"42840"},
{"Key":"Republic Of Yemen","Value":"42841"},{"Key":"Reunion","Value":"42842"},{"Key":"Romania","Value":"42843"},{"Key":"Russian Federation","Value":"42844"},
{"Key":"Rwanda","Value":"42845"},{"Key":"Saint Kitts And Nevis","Value":"42846"},{"Key":"Saint Lucia","Value":"42847"},{"Key":"Sao Tome & Principe","Value":"
42848"},{"Key":"Saudi Arabia","Value":"42849"},{"Key":"Senegal","Value":"42850"},{"Key":"Serbia","Value":"42851"},{"Key":"Serbia & Monten","Value":"42852"},
{"Key":"Seychelles","Value":"42853"},{"Key":"Sierra Leone","Value":"42854"},{"Key":"Singapore","Value":"42855"},{"Key":"Slovakia","Value":"42856"},{"Key":"
Slovenia","Value":"42857"}

DynamoDb
{"Key":"Mauritania","Value":"42803"},{"Key":"Mauritius","Value":"42804"},{"Key":"
Mexico","Value":"42805"},{"Key":"Micronesia","Value":"42806"},{"Key":"Monaco","
Value":"42807"},{"Key":"Mongolia","Value":"42808"},{"Key":"Montenegro","
Value":"42809"},{"Key":"Montserrat","Value":"42810"},{"Key":"Morocco","Value":"
42811"},{"Key":"Mozambique","Value":"42812"},{"Key":"Namibia","Value":"
42813"},{"Key":"Nauru","Value":"42814"},{"Key":"Nepal","Value":"42815"},{"Key":"
Netherlands","Value":"42816"},{"Key":"Netherlands Antilles","Value":"42817"},
{"Key":"New Caledonia","Value":"42818"},{"Key":"New Zealand","Value":"
42819"},{"Key":"Nicaragua","Value":"42820"},{"Key":"Niger","Value":"42821"},
{"Key":"Nigeria","Value":"42822"},{"Key":"Niue","Value":"42823"},{"Key":"Northern
Mariana Islands","Value":"42824"},{"Key":"Norway","Value":"42825"},{"Key":"
Oman","Value":"42826"},{"Key":"Pakistan","Value":"42827"},{"Key":"Palau,
Republic Of","Value":"42828"},{"Key":"Palestine","Value":"42829"},{"Key":"
Panama","Value":"42830"},{"Key":"Papua New Guinea","Value":"42831"},{"Key":"
Paraguay","Value":"42832"},{"Key":"Peru","Value":"42833"},{"Key":"Philippines","
Value":"42834"},{"Key":"Poland","Value":"42835"},{"Key":"Portugal","Value":"
42836"},{"Key":"Puerto Rico","Value":"42837"},{"Key":"Qatar","Value":"42838"},
{"Key":"Republic Of Korea","Value":"42839"},{"Key":"Republic Of Moldova","
Value":"42840"},{"Key":"Republic Of Yemen","Value":"42841"},{"Key":"Reunion","
Value":"42842"},{"Key":"Romania","Value":"42843"},{"Key":"Russian
Federation","Value":"42844"},{"Key":"Rwanda","Value":"42845"},{"Key":"Saint
Kitts And Nevis","Value":"42846"},{"Key":"Saint Lucia","Value":"42847"},{"Key":"
Sao Tome & Principe","Value":"42848"},{"Key":"Saudi Arabia","Value":"42849"},
{"Key":"Senegal","Value":"42850"},{"Key":"Serbia","Value":"42851"},{"Key":"
Serbia & Monten","Value":"42852"},{"Key":"Seychelles","Value":"42853"},{"Key":"
Sierra Leone","Value":"42854"},{"Key":"Singapore","Value":"42855"},{"Key":"
Slovakia","Value":"42856"},{"Key":"Slovenia","Value":"42857"},{"Key":"Solomon
Islands","Value":"42858"},{"Key":"Somalia","Value":"42859"},{"Key":"South
Africa","Value":"42860"},{"Key":"South
{"Key":"Papua New Guinea","Value":"42831"},{"Key":"Paraguay","Value":"
42832"},{"Key":"Peru","Value":"42833"},{"Key":"Philippines","Value":"42834"},
{"Key":"Poland","Value":"42835"},{"Key":"Portugal","Value":"42836"},{"Key":"
Puerto Rico","Value":"42837"},{"Key":"Qatar","Value":"42838"},{"Key":"Republic
Of Korea","Value":"42839"},{"Key":"Republic Of Moldova","Value":"42840"}
Static (Read Optimised) Volatile (Write Optimised)

Recovery Point
Objective = 30
minutes
DynamoDb

Recovery Time
Objective = 1 day
DynamoDb

DynamoDb
Version Control
DynamoDb

Risk Profile: Team
1. Team availability
2. Experience level of the Team
3. Domain knowledge of the Team
4. Technical skillset of the Team
5. Team flow, size and track record

Risk Profile: Product
1. Product Complexity
2. Product Criticality
3. Product Stability
4. Problem Clarity
5. User perspection / expectations

More than
you think
Stakeholders

https://github.com/PageUpPeopleOrg

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https://en.wikipedia.org/wiki/Behavior-driven_development
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http://martinfowler.com/bliki/CQRS.html

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