Iasi code camp 20 april 2013 distributed application challenges

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This document discusses the challenges of developing distributed applications in the cloud. It describes key cloud computing concepts like infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). Specific challenges covered include session management, storage management, using distributed databases, and communication between cloud and on-premise systems. Solutions for session management using caching and affinity are presented.

Technology

CHALLENGES
DISTRIBUTED APPLICATION
RADU PINTILIE, VLAD PITARU

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
CLOUD COMPUTING

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
DEFINITION
Cloud computing is the use of computing
resources (hardware and software) that are
delivered as a service over a network
CLOUD COMPUTING

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
CATEGORIES
Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)
CLOUD COMPUTING

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
USE CASES
Startups
Black Friday
Uptime
CLOUD COMPUTING

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
MYOPEL
WINDOWS AZURE

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
MYOPEL
Scalability
WINDOWS AZURE

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
MYOPEL
Uptime
WINDOWS AZURE

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
MYOPEL
Security
WINDOWS AZURE

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
MANAGEMENT PORTAL
Demo
WINDOWS AZURE

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
APPLICATIONS
DISTRIBUTED

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
DEFINITION
A distributed application is a program meant
to run on multiple computers to achieve a
common goal
DISTRIBUTED APPLICATION

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
CHALLENGES
Session management
Storage management
Distributed database
Communication
DISTRIBUTED APPLICATION

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
SESSION MANAGEMENT
Stateless nature of the cloud
Synchronization of memory objects
Storing of session state data
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
SESSION MANAGEMENT
Demo
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
SESSION MANAGEMENT
Use only 1 instance
Session affinity
Table storage
SQL Azure
Windows Azure Caching
SOLUTIONS

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
SESSION MANAGEMENT
Windows Azure Caching (co-located)
-distributed cache
-in memory
-uses instance resources
-LRU eviction
SOLUTIONS

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
SESSION MANAGEMENT
Solutions demo
SOLUTIONS

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
STORAGE MANAGEMENT
Serving images or documents to a browser
Storing files for distributed access
Streaming video and audio
USE CASES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
STORAGE MANAGEMENT
Azure Blob Storage - unstructured data
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
STORAGE MANAGEMENT
Demo
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
DISTRIBUTED DATABASE
High availability
Elastic scale and rapid provisioning
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
DISTRIBUTED DATABASE
Demo
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
COMMUNICATION
Emails from Azure
No fixed IP
Securing On Premise – Cloud communication
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
CONCLUSIONS
Distributed application scalability
Session management
Storage management
Distributed database
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
QUESTIONS
?
CHALLENGES

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
FEEDBACK
Please complete the feedback forms
CODECAMP

APRIL 20, 2013Distributed Application Challenges
© EXPERT NETWORK
THANK YOU

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Iasi code camp 20 april 2013 distributed application challenges

1. CHALLENGES DISTRIBUTED APPLICATION RADU PINTILIE, VLAD PITARU

3. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK DEFINITION Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network CLOUD COMPUTING

4. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK CATEGORIES Infrastructure as a Service (IaaS) Platform as a Service (PaaS) Software as a Service (SaaS) CLOUD COMPUTING

5. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK USE CASES Startups Black Friday Uptime CLOUD COMPUTING

12. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK DEFINITION A distributed application is a program meant to run on multiple computers to achieve a common goal DISTRIBUTED APPLICATION

13. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK CHALLENGES Session management Storage management Distributed database Communication DISTRIBUTED APPLICATION

14. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK SESSION MANAGEMENT Stateless nature of the cloud Synchronization of memory objects Storing of session state data CHALLENGES

16. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK SESSION MANAGEMENT Use only 1 instance Session affinity Table storage SQL Azure Windows Azure Caching SOLUTIONS

17. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK SESSION MANAGEMENT Windows Azure Caching (co-located) -distributed cache -in memory -uses instance resources -LRU eviction SOLUTIONS

19. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK STORAGE MANAGEMENT Serving images or documents to a browser Storing files for distributed access Streaming video and audio USE CASES

20. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK STORAGE MANAGEMENT Azure Blob Storage - unstructured data CHALLENGES

22. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK DISTRIBUTED DATABASE High availability Elastic scale and rapid provisioning CHALLENGES

24. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK COMMUNICATION Emails from Azure No fixed IP Securing On Premise – Cloud communication CHALLENGES

25. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK CONCLUSIONS Distributed application scalability Session management Storage management Distributed database CHALLENGES

27. APRIL 20, 2013Distributed Application Challenges © EXPERT NETWORK FEEDBACK Please complete the feedback forms CODECAMP

Editor's Notes

Pregătire: management portal, uptime monitoringPrezentare speakeriAgendă: vom împărtăși din experiența noastră în implementarea unei platforme în cloud pentru Opel
Ceintelegetiprin cloud computing?Stick premiu
Folosirearesurselor hardware și software livrate sub formă de serviciu
IaaS – servere, reteua, load balancer, firewall, masini virtualePaaS – sistem de operare, runtime, baze de date, web server, apiSaaS – nu trebuie instalat la client, nu trebuie gestionată infrastructura sau platforma
Poateavem startup-uriprinIașiScalabilitate, investiție minimăCe se intamplă de Black FridayUptime greu de garantat, probleme server propriu: os update, crash
Ceintelegetiprinscalabilitate?Capacitateaunui sistem de a face față și a se adapta unui încărcări suplimentareVerticala: un server maiputernic. Existalimitati. Pretulcreste exponential de la un punctincoloOrizontala: maimulteservere. Aspecte specifice de avut în vedere
Câți de 9 oferă? Cum:redundanță99,90% 1 instanță – 1minutși jumatatepezi downtime99,95% >1instanță – sub 1 minutpezidowntimeGrafic
FirewallDDOS protectionHTTPSNetwork Segmentation – rețea privată după load balancer, segmentare pe rețeleSecuritate fizică
Ceeste o aplicațiedistribuită?CD premiu
Un program proiectat să ruleze pe mai multe server simultan pentru a îndeplini un obiectiv comunScop : Scalabilitate, uptime ridicatCum – gandimapilicatia in mod distribuitpemaimulteniveleNivelulaplicatiei - maimulteinstanteNivelulcacheului - cache distribuitNivelulstocarii - stocaredistribuitaNivelulbazei de date - baza de date distribuita
Provocaricheie : SesiuneStocareBaze de dateComunicații
Sesiune web : perioada de timp in care userulinteractioneaza cu o aplicatie webProvocarea majoră: natura stateless a clouduluiProbleme: sincronizareaobiectelorîn memorie, stocareadatelor de sesiuneUndestocamdatele de sesiune? – ASP.NET –InProc (memory of ASP.NET worker process)ExplicațieschemăExemplele cu ASP.NET
3 instanțe, sesiune defaultProbleme
Solutiile cloud trebuieganditepentruredundantaSession affinity – redirectareaclientuluispreaceeasiinstantaTable storage – ieftindarmaiincetdecatcelelaltesolutiiSQL Azure – potrivit in special dacafolositideja SQL Azure, sesiunileexpiratetrebuiescsterseprinapelareaunei proc. Stoc
- Serviciu de cache pentruaplicatiileceruleaza in Windows Azure - Cache distribuit - Investitie minima –foloseste din memoriainstantei (procent) -Scalabil – memoriacresteodata cu numarul de instante - Potrivitpentru a stoca date de sesiune, dar nu numai (cache la nivel de aplicatie) - Tehnica de evacuare - Least Recently Used – celmaiputinfolosit item
- Caching tab terms explained
Imagini către browse-reStocare fișiere pentru acces distribuitStreaming video și audio
Blob Storage– serviciu pentru stocarea unor cantități mari de date nestructuratePoate conține până la 100TB de datePartitionare + Georeplicare
ContainersNo folder structure
Disponibilitate ridicată – prinbackup în mai multe locațiiElasticitate – query-urile consumatoare de resurse au prioritate scazută pentru a nu le bloca pe celelalteProvisioning – Alocarea resurselor în funție de prioritatea query-urilorBenchmarks
Motoarele anti-spam sebazeazamultsipereputatia server-ului de pe care pleaca email-ulAdresele IP suntalocatedoar in momentul deploymentSecurizare prin firewall pe clase de IP-uri și autentificareuser/parolă
Pentru a avea o aplicație distribuită scalabilăsi cu uptimeridicattrebuie tratate provocările de:Gestiunea sesiunii, Gestuinea stocării și distribuirea bazei de date

Iasi code camp 20 april 2013 distributed application challenges

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