CloudTao

— Build your own enterprise-class PaaS platform

Cloudset and Cloud

Master Cloudset

Cloudset1

Cloudset

Resource Pool

cloud

cloudclou

d

cloud

cloud

Dedicated resource can be assigned to a cloudset. Dedicated resource can be also assigned to a cloud inside an cloudset

First Level Multitenant

Second Level Multitenant

Cloud

Service

Service

Cloud and Service

Service

Service

1. A cloud contains a set of services

2. A service can handling a set of target http request.

Third Level Multitenant

Service

Processor 1(Embed Jetty instance listening on: 192.168.64.101: 8083)

Processor 2

Service and Processor

(Embed Jetty instance listening on: 192.168.64.102 ： 8084)

Processor3

(Embed Jetty instance listening on: 192.168.64.102： 8085)

1. A service is packed into a war which can be self-started with an embedded jetty.

2. A service contains several processors each refer to a running jetty instance.

5

Deployment ArchitectureHA Proxy / F 5

Gateway Processor

Gateway Processor

Gateway Processor

Load balancer

Reverse Proxy

ServiceProcessor

ServiceProcessor

……Cloud

ServiceProcessor

ServiceProcessor

……Cloud

Cloudset

ServiceProcessor

ServiceProcessor

……Cloud

Cloudset

Processor Pool

Data Center 1 Data Center 2Infrastructure Admin/Monitor/Service

Repository

Man

agemen

t & M

onitorin

g

Server P

ool

…

Runtime Architecture

Cloudsetcloudse

t2

Web UI/Client

1.http://paas.cloudtao.com/cloudset1/cloud1/service1/customer/1

2. Dispatch and load balance

cloud2

service1 service2

Processsor1

Processor 2

3. http response

Processor 1

Processor 2

Master Cloudset

System cloud

cloudset1

Repository Service

service1.war

Other Service

Gateway Processor ClusterProcessor 1 Processor 1

Core Service

1.Embedded Application Server(jetty)2.Self-contained3.Easy to maintain and upgrade4.Monitoring5.Logging6.Remote Debugging7.JMX integration8.Security: ssl & application-based

custom authentication

8

Core Service

Combine

Application (War)

CloudTao Core(jetty + admin/monitoring etc.)

App+ CloudTao core = Service

run Processor with

Embedded

Application server

ProcessorProcessor

Processor

Processor

CloudTao Cluster

Cloudset Cloud Service

Processor

Maven plug-in

Gateway Service

Load Balancer(F5/Haproxy

)

Gateway 1 Gateway 2 Gateway …

Processor Processor Processor

Processor Processor Processor

Processor Processor …..

1. Forward http request to target cloudset/cloud/service/processor

2. Load balancing3. Auditing4. Central

Authentication5. Filtering

Database Service

Application

Multitenant

Relational DB

Traditional

Relational DB

NOSQLKey-Value

NOSQLDocument-based

NOSQLColumn-

based

1. Relational DB is needed for legacy Application

2. Application needs ACID from relational DB, NOSQL are based on BASE model

3. Relational DB is overused in the past① Blob data should be

store in key-value based nosql db

② Application logic implementation should be moved to application layer

③ Relationship between data is too complex

④ No-Stand SQL

Scalable Multitenant RDBMS1. Multitenant DBMS that is

scalable, fault-tolerant, elastic, autonomic, consistent, and supports a relational data model.

2. NOSQL is scalable, but① Lack of transaction(ACID)② Lack of query ability③ No built-in Multitenant

support④ SLA is un-certain

3. An application with smaller storage requirements (tens of MBs to a few GB) would not utilize these scaling advantages of NOSQL

Sharing Mode Isolation

Shared hardware VM

Shared VM OS User

Shared OS DB Instance

Shared instance Database

Shared database Schema

Shared table Row

Multitenant database models

Scalable Multitenant RDBMS

1. Embedded H2/mysql Database in Processor

2. Self-Contained3. Isolation at DB

instance4. Web-based DB

management console5. Clustering/HA

between db processors

6. Application transparent

DB Service

Clustering/HA

DB Processor 1 DB Processor 2

Embedded Database

Embedded Database

Multitenant Queue Service

1. Embedded Hornetq in Processor

2. Self-Contained3. Clustering/HA

between two processors

Queue Service

Clustering/HA

Queue Processor 1

Queue Processor 2

Embedded HornetQ

Embedded HornetQ

Storage(Key-Value) Service

S3 compatible interface

Local file system implementation

1. Central storage repository

2. Only can use http request to access

3. In Master cloudset system cloud: we use storage service to store all admin information and configuration information.

Distributed file system implementation

.... implementation

Cache Service

Rest http interface

Cache Service

1. Based on Ehcache2. Put/Get cache

through http restful request

3. Clusting/HA between cache processors

Clustering/HA

Cache processor 1

Cache processor 2

Central Session implementation

Cache Service 1

Clustering/HA

Cache processor 1

Cache processor 2

Cache Service 2

Clustering/HA

Cache processor 1

Cache processor 2

Cache Service …

Clustering/HA

Cache processor 1

Cache processor 2

Cloudtao Session Manager:

1. Generate Unique session ID

2. Hashed by session id to distrubuted HA cache service

3. No local session storage

4. No tricky session

Jetty Instance

Jetty Instance…….

Host

Repository Service

1. Based on Maven repository

2. Central storage for service artifacts

3. Multi-version support

Application Developer

mvn deploy

Service1.war

Service2.war

Service3.war

Service4.war

Admin Processor

1

Service 1 Processor 1

1. Download war

2. Start processor

Full Cycle Application Support

Development

Test

Deploy

Monitor

1. Develop with traditional Method

2. Use PaaS Service3. Deploy artifacts to repository

with maven plug-in

1. Test with traditional Method

2. Maven Plug-in3. Test in DTAP4. Remote Debugging

1. Make deploy strategy2. On-fly redeployment3. Version Upgrade

1. Real-time monitoring and alert

2. Dynamic scale up/down

3. Fail-over

Gartner: Key features of Cloud-Enable Application Platform(PaaS)

CloudTao

Elastic resource allocation Native Support

Automatic horizontal scaling (up and down) Native Support

Multitenant fine-grained control of computing resources Native Support

Multitenant fine-grained tracking and billing for resource use Native Support

Extreme-transaction-processing (XTP)-grade performance characteristics

Extensible

Global-class interoperability and access models Native Support

Multitenant provisioning, management, monitoring and error recovery procedures

Native Support

Multitenant protections of security, privacy, integrity and service-level agreement levels

Native Support

Multitenant configuration, customization and version control Native Support

CloudTao: PaaS Platform built from ground

CloudTao: Key Technical Characters Shared OS multitenancy implementation, Linearly

horizontal scalability, fine-grain resource utilization

Multitenant at multiple level Easy to management, easy to upgrade, central

monitoring. Bridge dev and ops. Open, Simple and consistent Architecture Fully Support J2EE Stack(except EJB) Truly Cross-platform, only reply on JVM Truly Distributed, HA, No single point of failure

THANK YOU!