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Introducing the GAR

Harvey RajaPrincipal Member Technical StaffOracle Coherence

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The following is intended to outline our genera

product direction. It is intended for informationpurposes only, and may not be incorporated in

any contract. It is not a commitment to deliver

material, code, or functionality, and should no

relied upon in making purchasing decisions.

The development, release, and timing of anyfeatures or functionality described for Oracles

products remain at the sole discretion of Orac

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Agenda

!

Why?

! What?

! How?

!

When?! Thoughts / Ideas?

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Current State

!

How many people specify the following?

java

-Dtangosol.coherence.cacheconfig=/path/to/cache-con

-Dtangosol.pof.config=/path/to/pof-config.xml

com.tangosol.net.DefaultCacheServer

!

How many people have custom shell scripts? How many people have custom shell scripts for application

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Current State

!

How many people have a similar build structure to below

! How many people build a cache tar file to distribute to m

machines?

Common Application Module(Java Beans, Helpers)

Web Module(Servlets)

EJB Module(EJBs, MDBs)

P

O

M

PO

M

PO

M

P

O

M

Cache Module(Serializers, EPs, Aggregators, Filters)

P

O

M

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Current State

!

Generally two deployment models exist:

! Client tier may produce an EAR, WAR and many JAR fil

! Data Grid tier may produce many JAR files and a tar for

Client Tier Data Grid Tie

Common Application Module(Java Beans, Helpers)

Web Module

(Servlets)

EJB Module

(EJBs, MDBs)

P

O

M

P

O

M

P

O

M

P

O

M

Cache Module(Serializers, EPs, Aggregators, Filters)

P

O

M

Ownership Disable Ownership Enab

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Current State - Summary

! Everyone writes their own scripts

! Certain command line arguments are always specified

!

Remote deployment requires primitive means (scp)

!

No mechanism to group / contain all components require

Coherence

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What?

!

A Grid ARchive is a new archive type similar to Web ARc

!

Provides containment of all artifacts regardless of the co

invoked under (Client or Data Grid)

!

Supported by Weblogic Server

!

Coherence can now take advantage of WLS infrastructu

(deployment, management, etc)

No more custom scripts!

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What?

!

It contains a descriptor which allows specifying the follow

Cache configuration file

POF Configuration file

CCF implementation

Lifecycle listener

!

Allows for libraries to be bundled in the archive

! Cache configuration file can be overridden

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What?

!

Contents of the GAR:

! GARs descriptor:

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How?

!

GAR natively understood by Coherence and Weblogic S

!

WLS supports: deploy(myGar, /path/to/myGa

!

DefaultCacheServer accepts a GAR as an argument

More than likely will still need your custom scripts for this a

!

Maven support

Archetype

deploy(myEarWithGar, myEeri

Packaging plugin

!

OEPE Suppor

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How?

!

Weblogic understands Coherence applications

Deploy / Undeploy

Start / Stop

! Weblogic supports the notion of a Coherence Cluster

Define operational settings

Assign WLS Servers or Clusters to Coherence Clusters WLS Servers or Clusters can specialize configuration, i.e.

enablement

Advantages of domain information; WKA list generation

No more system properties!

Targetable

Application Isolation

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Tiered-Deployments

!

WLS clusters allows a logical grouping of processes fac

deployments:

WLSStorage Enabled

Cluster

WLSStorage Disabled

Cluster

Coherence Cluster

WLSStorage Enabled

Cluster

WLSExtend Proxy

Cluster

Coherence Clus

Extend Clients

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Tiered-Deployments

!

WLS clusters allows a logical grouping of processes fac

deployments:

WLSStorage Enabled

Cluster

WLSStorage Disabled

Cluster

Coherence Cluster

WLSStorage Enabled

Cluster

WLSExtend Proxy

Cluster

Coherence Clus

Extend Clients

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Some Weblogic Advantages

!

Node Manager

!

Domain level configuration (repl)

! WebLogic Scripting Tool (Jython)

!

Bind Coherence MBeans to WLS MBean Server

! Weblogic footprint proven to be insignificant

!

Admin Console

!

Configuration Wiza

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Some More Weblogic Advantages

!

Dynamic Servers

!

Security

! Cache Configuration can be overriden by JNDI

!

Accessible runtime state of GARs

! Rolling restart can be performed via WLST

!

Coherence logs se

!

JEE Resources ava

(Data Source, JM

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Oracle Cohere12.1.2

When?

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Ideas?

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