Elasticity Module One Pager

(template version 1.92)

1. Introduction

1.1. Project/Component Working Name:

Elasticity Module in GlassFish 3.2

1.2. Name(s) and e-mail address of Document Author(s)/Supplier:

[Mahesh Kannan], [Santiago Pericassgeertsen], Carla Mott

1.3. Date of This Document:

Apr-12-2011

2. Project Summary

2.1. Project Description:

A system is elastic if it can be easily resized to accommodate fluctuations in demand. Resizing in this context means growing or shrinking. A system provides auto-scaling if it can automatically resize based on fluctuations in demand. Another term for auto-scaling could be auto-elasticity. Note that a system could be (manually) elastic without offering an auto-scaling feature.

GF 3.2 should offer both elasticity and auto-scaling.

See below for a longer, more detailed technical description.

2.2. Risks and Assumptions:

Note any risks, and assumptions that must be considered along with the proposal. Include technical risks.

3. Problem Summary

3.1. Problem Area:

What problem or need does this project solve?

3.2. Justification:

Why is it important to do this project?

4. Technical Description:

4.1. Details:

To the extent known, how is this project going to be done? This information is used by the reviewer to get a feel for the
complexity and risk involved, and the architectural constraints that this project is working under. Try to present alternatives and show relationships to existing or proposed projects/standards.

4.2. Bug/RFE Number(s):

List any Bug(s)/RFE(s) which will be addressed by this proposed change.

RFE's must be trackable via an issue in Issue Tracker for
features in the open source distro and in Bugster for value-add
features to be released in the commercial distro.

4.3. In Scope:

Aspects that are in scope of this proposal if not obvious from above.

4.4. Out of Scope:

Aspects that are out of scope if not obvious from above.

4.5. Interfaces:

Interfaces may be commands, files, directory structure, ports,
DTD/Schema, tools, APIs, CLIs, etc.
Note: In lieu of listing the interfaces in the one pager, providing
a link to another specification which defines the interfaces
is acceptable.

4.5.1 Public Interfaces

List new, public interfaces this project exports.

• Interface:
• Comment:

4.5.2 Private Interfaces

List private interfaces which are externally observable.

• Interface:
• Comment:

4.5.3 Deprecated/Removed Interfaces:

List existing public interfaces which will be deprecated or
removed by this project.

• Interface:
• Reason for Removal:

4.6. Doc Impact:

List any Documentation (man pages, manuals, service guides...) that will be impacted by this proposal.

4.7. Admin/Config Impact:

How will this change impact the administration of the product?

Identify changes to GUIs, CLI, agents, plugins...

4.8. HA Impact:

What new requirements does this proposal place on the High Availability or Clustering aspects of the component?

4.9. I18N/L10N Impact:

Does this proposal impact internationalization or localization?

4.10. Packaging, Delivery & Upgrade:

4.10.1. Packaging

• What packages does this proposal impact?
• How will the packages be impacted?
• Will new IPS/pkg(5) packages need to be created?

4.10.2. Delivery

• What impact will this proposal have on product installation?

4.10.3. Upgrade and Migration:

• What impact will this proposal have on product upgrade and/or migration from prior releases?
• Enumerate requirements this project has on upgrade and migration.

4.11. Security Impact:

How does this proposal interact with security-related APIs or interfaces? Does it rely on any Java policy or platform user/permissions implication? If the feature exposes any new ports, Or any similar communication points which may have security implications, note these here.

4.12. Compatibility Impact

Incompatible changes to interfaces that others expect to be stable may cause other parts of application server or
other dependent products to break.

Discuss changes to the imported or exported interfaces.Describe how an older version of the interface would
be handled.

List any requirements on upgrade tool and migration tool.

4.13. Dependencies:

An internal dependency is a dependency on a project, module,
component or product that is within the GlassFish project.
An external dependency is a dependency on a project, component
or product that resides outside of the GlassFish project.

4.13.1 Internal Dependencies

List all internal dependencies this proposal has on other
software. Include component version requirements if necessary.

4.13.2 External Dependencies

List all external dependencies this proposal has on other
software. Indicate if the software is open source, what
license terms the software is released under and the version
of the software that is being consumed by this project.

4.14. Testing Impact:

How will the new feature(s) introduced by this project be tested?
Do tests exist from prior releases (e.g. v2) that can be reused?
Will new tests need to be written? Can they be automated?

5. Reference Documents:

List of related documents, if any (BugID's, RFP's, papers).

Explain how/where to obtain the documents, and what each contains, not just their titles.

6. Schedule:

6.1. Projected Availability:

Indicate which milestones from the current schedule the project
will be:

• Initially integrated (may not be feature complete)
• Feature complete (ready for handoff to QA)
• At production quality level