Download ETC Application Server Presentation

Oracle 9iAS
Enterprise Technology Centre
Oracle Corporation
Agenda
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Introduction
9iAS architecture & installation options
Web content cache & load balancing
Web/Java applications & J2EE
Management
Application deployment
Security
Additional features
Technology Trends
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Internet Is Ubiquitous
Applications Accessed via Internet / Browser
Applications Deployed on Application Servers
Applications Built to Internet Standards
Information/Data stored in Databases
Typical ‘N’-Tier System Architecture
Technology Challenges
 Middleware Complexity Growing
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Too Many Pieces
Complex support, licensing, architecture, integration
etc
 Complex to Develop
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Too Many Tools
 Unreliable When Deployed
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Fragile Infrastructure
 Expensive to Manage
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Software Cost,
Management Cost
RogueWave
IBM
Framework Application
Server
Netscape
Web Server Rational
Modeling Times Ten
Cache
Novell
Microsoft
Directory
Database
Iona
Borland
Actuate
ORBs
Java Tool
Reporting
Plumtree
Cognos
Portals
Analysis
Oracle’s Vision – Simplify the Complex
 Consolidate Data to Database Servers
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Lower Cost, Better Information
 Consolidate Applications to Application
Servers
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Lower Cost, More Reliable Applications
Run All Your
Applications
Clients
Browser or
Mobile Device
Oracle9i
App Server
Manage All
Your Data
Oracle9i
Database Server
Three Technology Products
9iAS Comprises all Mid-tier components
Management &
Security
e-Business
Integration
Portals
J2EE &
Internet Apps
Business
Intelligence
Wireless
Web Services
IFS
Performance &
Caching
Common Core: Open Standards,
Browser based, Web Services
Servlets / JSPs
Browser
HTML Design
Tools
Portal
Services
W
E
B
C
A
C
H
E
HTTP
Server
Integration &
Web Services
Perl/PHP/PLSQL
Forms
Wireless
Reports/BI Services
Database
WebDAV
Table
MultiMedia
LOB XML
Web Service
Client at Other
Company
Transactional Java J2EE1.3
EJBS: Session, Entity (BMP, CMP)
Oracle9i Application Server Components
J2EE and Web
Portal and
Cache
Wireless
Business
Intelligence
and Forms
Oracle9iAS Web Cache
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Oracle HTTP Server
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Oracle9iAS Containers
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Oracle9iAS Portal
X
X
Oracle9iAS Wireless
X
X
for J2EE (OC4J)
Oracle Enterprise
Component
Manager Web site
Oracle9iAS Discoverer
X
Oracle9iAS Reports
X
Services
Oracle9iAS Forms
Services
Oracle9iAS
Personalization
X
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Architecture Should Address Downtime
System
Failure
9iAS High Availability
Infrastructure
Unplanned
Downtime
Human
Error
9iAS Distributed
Config Management
System
Maintenance
Planned
Downtime
Application
Maintenance
9iAS Hot Deployments
Remove Single Points of Failure with Clustering
Browser
Cluster 1
J2EE Application ‘A’
Session State Shared
Wireless &
Mobile
Load Balancers
(or Web Cache)
Data Sources
WebServices
Apache Web Servers
w/ Load Balancing
Internet / intranet
Users
• Web Caches share cache content.
Load balancing via: round-robin,
weighted %, or last use.
Cluster 2
J2EE Application ‘B’
Session State Shared
• Apache maps application/
requests to clusters.
• Clusters share application
session state via IP multicast.
Clustering Provides High Availability
Browser
Cluster 1
J2EE Application ‘A’
Session State Shared
Wireless &
Mobile
Load Balancers
(or Web Caches)
Apache Web Servers
w/ Load Balancing
Oracle9i RAC
Internet / intranet
Users
– Automatic addition of application servers to clusters
– Automatic application deployment to clusters
– Transparent re-routing around failed instances and session affinity
Oracle9iAS Infrastructure
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The Oracle9iAS Infrastructure consists of:
 Oracle9iAS Metadata Repository
 Oracle Internet Directory
 Oracle9iAS Single Sign-On
 Oracle Management Server
The database contains a collection of schemas and
metadata that enables the deployment of
Oracle9iAS components.
Oracle9iAS and Infrastructure
 Enables the deployment of Single Sign-On, Oracle Internet
Directory, Oracle Management Server, and Oracle9iAS instance
clustering.
 Multiple installations of Oracle9iAS can share one Oracle9iAS
Infrastructure.
Host 1
J2EE and Web Cache
Host 3
SSO
Portal and Wireless
Host 2
Business Intelligence
and Forms
J2EE and Web Cache
Oracle9iAS
Metadata
Repository
OID
OMS
Oracle9iAS Farms
Farm
Node B
Node A
J2EE and Web Cache
J2EE and Web Cache
J2EE and Web Cache
J2EE and Web Cache
Portal and Wireless
Portal and Wireless
Node/Host 1
Infrastructure
Node/Host 2
Oracle9iAS
Metadata
Repository
SSO
OID
OMS
Node/Host 3
WebCache for
Maximum Availability
How does Web Caching Work?
Application Servers
BEA
Oracle9iAS
WebCache
IBM
Microsoft
Disk
Subsytem
JSP
9iAS
Content Generation
Delivery and assemble
Database
How does Web Caching Work?
Application Servers
BEA
Oracle9iAS
WebCache
IBM
Microsoft
Disk
Subsytem
JSP
9iAS
Content Generation
Delivery and assemble
Database
Web Cache
Content Generation
Delivery and assemble
Content
Delivery
Network
Application Servers
BEA
Content Generation
Delivery and assemble
IBM
Microsoft
Disk
Subsytem
JSP
9iAS
Distributed
Web Caches
Database
Load Balances over Application Server
OHS / OC4J
Client
Browser
Oracle9iAS
Web Cache
Oracle9i
Database
9i
Network
GET
test.jsp
Data Center
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Stateful: cookies and session-IDs used to maintain server affinity
Stateless: weighted round-robin algorithm
Layer 7 status checking for failure/recovery detection
Connection pooling for TCP connection reuse
WebCache Clustering for Resilience
Oracle9iAS Clusters
Oracle
Real Application Clusters
9i
Client
Browser
Load
Balancer
9i
Network
9i
• Failure and Recovery Detection
Web Cache
Cluster
Web & J2EE
Clusters
Database
Cluster
Increase Capacity, Availability and Scalability
Intra-Cache Communication –
“Greedy” Caching
Oracle
Real Application Clusters
Oracle9iAS Clusters
Client
Browser
Load
Balancer
Network
9i
A
9i
B
9i
C
Web Cache
Cluster
Request to A; A is the owner
Request to B; A is the owner
Web & J2EE
Clusters
Database
Cluster
“Greedy” Caching:
B now has A’s content
Surge Protection
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Resilience to DoS attacks
Buffers load on backend servers
Monitors and ensures performance
Forwards on requests when appropriate
Ensures backend servers not swamped
and service requests in required timeframe
Automatic Content Compression
Improves Performance
Using GZIP, a 20K
HTML file becomes ~4K
Accept-Encoding: gzip
Client
Browser
Internet
Oracle9iAS
Web Cache
Auto Compression of Both Cacheable and Non-cacheable Content
Benefits
Bandwidth Savings
Network Latency
WebServer &
Java Applications for
Maximum Availability
No Single Point of Failure for 9i Platform
Web Server
Cluster
App Server Cluster
HTTP
Server
Web Cache
Or
Hardware
load balancer
Load
Balancing/
Failover
J2EE
HTTP
Server
J2EE
HTTP
Server
J2EE
Load
Balancing/
Failover
HTTP
Server
State
J
D
B
C
State
J
D
B
C
State
J
D
B
C
DB Cluster
(Persistent State)
Load
Balancing/
Failover
J2EE
J
D
B
C
Node
A
Node
B
Node
C
Node
D
Cluster Islands
Oracle9iAS Cluster
Oracle9iAS Instance #1
Oracle9iAS Instance #2
OHS
OHS
OC4J Instance
OC4J Instance
OC4J
OC4J
Process
Process
DEFAULT_ISLAND
OC4J
Process
OC4J
OC4J
Process
Process
Any Name
OC4J
Process
Cluster Islands Keep Java Application State
Web Server
Cluster
App Server Cluster
(Session State)
HTTP
Server
Web Cache
Or
Hardware
load balancer
Load
Balancing/
Failover
J2EE
HTTP
Server
J2EE
HTTP
Server
J2EE
Load
Balancing/
Failover
HTTP
Server
State
J
D
B
C
State
J
D
B
C
State
J
D
B
C
DB Cluster
(Persistent State)
Load
Balancing/
Failover
J2EE
J
D
B
C
Node
A
Node
B
Node
C
Node
D
Oracle9iAS Terminology
FW/LB/Web Cache
OHS
OC4J
OC4J
OC4J
OC4J
OHS
OC4J
OC4J
OC4J
OC4J
9iAS Instance:
Managed 9iAS processes ($OH)
Component Instance:
Identically configured components
Cluster:
Identical 9iAS Instances
Architecture: An iAS Instance
FW/LB/WC
1
OHS
•Apache WebServer
2
OC4J
• Java Virtual Machine
3
OPMN - Process Mgmt
• Death Detection [Ping]
• (Re) start Processes
4
DCM - Distr. Configuration
• Cluster-wide Deployment
• Repository Interface
5
mod_oc4j
• Load Balancing
• Smart Config Update
http
9iAS Instance
OHS
mod_oc4j
1
events
5
OPMN 3
events
DCM4
ajp
events
OC4J
OC4J
OC4J
2
Architecture: iAS Cluster
http
FW/LB/WC
OHS
OPMN
DCM
OC4J
OC4J
OC4J
events
9iAS Cluster
OPMN
OHS
DCM
OC4J
OC4J
OC4J
Scenarios: Deploy to Cluster
http
FW/LB/WC
OHS
OPMN
9iAS Cluster
6
2
1
OHS
OPMN
3
DCM
DCM
5
4
OC4J
OC4J
OC4J
Deploy
OC4J
OC4J
OC4J
Oracle9iAS Hi-Availability Tool (iHAT)
Free Download from otn.oracle.com
Management for
Maximum Availability
Enterprise Manager
 Single Point of Administration
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Manage Oracle9iAS, Oracle9iDB from a Browser
Across All Services
 Complete Monitoring
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Status, Resources, Faults, Performance
 Complete Management
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Create, Configure, Monitor, Deploy Apps, …
 Complete Cluster Management
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Create, Configure, Start, Monitor, Deploy Apps, ..
Manage the Whole Cluster from
one Tool
Cluster 1
Single Station
Administration
Performance
Monitor
Cluster 2
DB
Cluster 3
Fault Monitor/
Alert
Single Sign-On
LDAP
Certificates
Privileges
Roles
XML-based • Files
Config Info • Instance Cloning
Application
Deployment for
Maximum Availability
JDeveloper IDE for Java &
WebServices
Auto Compile,
Generate & Deploy
UML Modeling
Wizards for all
J2EE Applications
Integrated Profiling
and Debugging
Hot Deployment of Java for Availability
 No Downtime – Site stays up
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When deploying java applications
When configuring
 Propagates to all Application Servers in
Farm
 Flexibility of Deployment: JDeveloper,
Manually or through Enterprise Manager
Java
ear
IDE
OC4J
OC4J
9iAS
Browser
Security for
Maximum Availability
Oracle9iAS Security Architecture
Oracle9iAS
OC4J
Portal
Web
Cache
HTTP
Server
Oracle
Net
SSO
OID
Oracle9iAS
Metadata
Repository
Oracle9i
Other Features for
Maximum Availability
Pre-tested in Oracle Labs
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Check Point Firewall-1 NG
Cisco CSS 11050
Cisco Catalyst 6506 W
Cisco Pix 520
F5 Networks BIG-IP 520 & 540
F5 Networks BIG-IP SSL Accelerator
Nortel Alteon ACEdirector
SonicWall SSL-R3 plus
Also
Raptor
Security: Baltimore, Netegrity, Verisign, Entrust, SmartTrust, RSA, POS
Data, Windows
Systems Management: BMC, Computer Associates, Compuware,
Quest, Mercury Interactive, HP Openview
What are Certified Configurations
 In conjunction with partners e.g. HP, Dell,
Sun.
 Certified on O/S version with Oracle
software
 Pre-Installed, tested, configured
 Ready to plug-in
Deploy on Any OS/Hardware
Any OS
Windows
Linux
Major Unix
2000, NT, XP
SuSE, RedHat
Solaris, AIX, HP-UX, Tru64
In Any Configuration
32 Bit OS
64 Bit OS
On Any HW Architecture
1-2 CPUs
Blades
Racks
SMP
4,6,8,12,6,32 CPUs
With Zero Application Code Change
100% Adherence to Open Standards
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100% Network Standards Compliant
100% J2EE Standards Compliant
100% Web Services Standards Compliant
100% XML Standards Compliant
100% Wireless Standards Compliant
100% Security Standards Compliant
100% Directory Standards Compliant
Mid-Tier Maximum Availability
Summary
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Webcache
OC4J
Management
Security
Hot Deployment
After lunch well look at HA from Database
Tier