Este martes 17 empecé a trabajar en una empresa local de desarrollo. Se llama Cima Soluciones. Por ahora, me estoy capacitando en XML y tecnologías relacionadas a la integración de negocios.

Para ser mi primer trabajo “en relación de dependencia” (es decir, donde puedo aplicar cosas que sé en entornos reales, y no de prueba), está bueno. Veremos como sigue la cosa…

Este sábado 10 de mayo, junto con el “profe” Gustavo Sevilla, comenzamos a dictar un curso de introducción a GNU+Linux, con aval del Consejo Directivo de la FCEFyN (Res. 71/06).

El curso está dirigido a personas que inician sus conocimientos en GNU+Linux, sin experiencia previa en el sistema GNU+Linux y con algún conocimiento de ambientes MS Windows y/o DOS que desean desarrollar sus habilidades para usar su propio sistema GNU+Linux, tanto por línea de comandos como por ambiente gráfico.
Una vez finalizado, podrán instalar, configurar y administrar GNU+Linux en una estación de trabajo.

Las clases están previstas los sábados de 8:30 hrs. a 12:30 hrs, en el Gabinete del Instituto de Informática (IdeI).
el cupo es limitado (máximo: 12 personas - una por máquina)

El arancel es el siguiente: Alumnos UNSJ: $70; Docentes y Egresados UNSJ: $ 100; Particulares: $120.

Inscripciones y Temario a continuación.

Para inscribirse, buscar en el IdeI (teléfono directo: 426-5101) a Pedro Zárate, o comunicarse con él a <pzarate-en-iinfo.unsj.edu.ar>.

A continuación, el temario:

Unidad 1. Introducción
-Filosofía del SL
-SOs
-GNU/Linux como SO

Unidad 2: Instalación
-Instalación pasa a paso:
-Requisitos del sistema
-Preparación del disco
-Elección del software apropiado
-Configuración del equipo

Unidad 3: Uso básico del SO:
-Entrar y salir
-Uso de consola
·Interprete de comandos
·Utilización de comandos básicos
·Metacaracteres
·Manejo de archivos
·Sistema de archivos
-Usuarios y Permisos

Unidad 4: Tareas básicas:
-Ejecución de programas
-Entradas y salidas de procesos
-Teclas de control
-Trabajos en segundo plano
-Tuberías
-Filtros
-Niveles de ejecución
-Instalación y desinstalación de paquetes;

Unidad 5: Aplicaciones (en modo de consola y gráfico):
-Cliente de correo-e;
-Navegador web;
-Ofimática;
-Multimedia;
-Desarrollo

Unidad 6: Herramientas de Administración del sistema
-Configuración de dispositivos de hardware: módems, softmódems, scanners, impresoras
-Configuración del entorno gráfico
-Administración remota del sistema

This is the text of my proposal for the Google Summer of Code 2008 “G2 DB Reloaded”. The Organization is Gallery. All comments are welcome.

“G2 DB Reloaded”

1: Abstract (2500 characters limit)

1.1 Proposal Name

“G2 DB Reloaded”

1.2 Problem

Lack of built-in referential integrity support into Gallery2 (G2)’s Database Abstraction Layer (DBAL).

1.3 Purpose

To improve G2’s Database (DB) referential integrity

1.4 General Objective:

• To enable referential constrains into G2’s DBAL.

1.5 Deliverables

For the Mid-term Evaluation:

• Updated abstract DB schema design for G2 that supports foreign keys, with full documentation.

• Updated XML definitions for the abstract DB schema.

For the Final Evaluation:

• Updated SQL generation programs for all targeted databases.

• Modified relevant G2 DB APIs (such as GalleryStorage and GalleryCoreAPI) and their tests.

1.6 Web Site

http://allentiak.wordpress.com

2: Detailed Proposal (7500 characters limit)

This is the text of my proposal for the Google Summer of Code 2008 “G2 DB Reloaded”. The Organization is Gallery. All comments are welcome.

“G2 DB Reloaded”

1 Abstract (2500 characters limit)

1.1 Proposal Name

“G2 DB Reloaded”

1.2 Problem

Lack of built-in referential integrity support into Gallery2 (G2)’s Database Abstraction Layer (DBAL).

1.3 Purpose

To improve G2’s Database (DB) referential integrity

1.4 General Objective:

• To enable referential constrains into G2’s DBAL.

1.5 Deliverables

For the Mid-term Evaluation:

• Updated abstract DB schema design for G2 that supports foreign keys, with full documentation.

• Updated XML definitions for the abstract DB schema.

For the Final Evaluation:

• Updated SQL generation programs for all targeted databases.

• Modified relevant G2 DB APIs (such as GalleryStorage and GalleryCoreAPI) and their tests.

1.6 Web Site

http://allentiak.wordpress.com

2 Detailed Proposal (7500 characters limit)

2.1 Proposal Name

“G2 DB Reloaded”

2.2 Problem

Lack of a Gallery2 (G2) DB schema with foreign keys in order to
support internal coherence.

2.3 Purpose

To ease G2 DB schema’s referential integrity

2.4 General Objective:

• To modify the G2 DB schema and its APIs in order to support
foreign keys.

Specific Objectives

• To analyze the current DB schema in order to document all the
implicit (undocumented) logical references between tables.

• To create a new DB schema that expresses all the references
found in the previous step.

• To modify G2 APIs in order to support referential integrity

2.5 Deliverables

For the Mid-term Evaluation:

• A new DB schema design for G2 that supports foreign keys, fully
documented.

For the Final Evaluation:

• Modified G2 DB API (GalleryStorage)

2.6 Benefits for the Gallery Community

There are at least three benefits of accomplishing this idea. All
of them will contribute to boost the adoption of G2 over other
similar software.

• To take full advantage of G2’s approach of being DB-based by
using a basic DB mechanism: referential integrity.

• To increase the quality of G2’source code by eliminating the
occurrence of ERROR_MISSING_OBJECT-related errors.

• To increase the documentation available regarding G2 DB design.

2.7 Motivation

G2 (as opposite to G1) is database-driven. This approach aim is
supposed to let the DB engine take care of the management logic of
the data and let G2 concentrate on the application logic.
However, a key aspect for this is still missing: referential
integrity. Such a situation makes impossible to eliminate all the
DB logic-related errors[-1], by letting the DB engine handle
them.

In order to change this situation for the better, a modified G2
DB schema is needed. Given that G2 uses its own APIs in order to
manage the DB-related operation, this component also should be
modified in order not to disrupt the DB CRUD operations.

The value of a well documented and complete DB schema (that
Gallery currently lacks of) is high. That is why the
documentation of the whole DB schema is considered to be so
important in this project.

2.8 Activities

Here is how it is intended to proceed.

1. Research on how the G2 API (specifically, the GalleryStorage
class) works and what CRUD operation implements.

2. Analysis of the current DB schema in order to document all the
implicit (undocumented) logical references between tables.

3. Modification of G2’s DB schema in order to support foreign
keys that implement all the references found in the previous
step.

4. Modification of G2 APIs in order to support referential
integrity

5. Developing of Unit Tests for the new G2 DB schema.

(a) Installation Tests.

(b) CRUD Tests.

(c) Usage Tests.

6. Performing of Unit Tests defined above.

7. Documentation of the whole process.

2.9 Considerations

• This project will be the main activity during the period it
lasts.

• Weekly status reports will be made.

• The communication with the rest of the G2 community will be
fluent.

2.10 About the Student (section written in first person)

My name is Leandro Doctors; I am 26 years old. I live in San Juan
(Argentina), a small town located 1000 km to the west of Buenos
Aires, not too far from the border with Chile.

Contact Info

• Name: Leandro Doctors

• E-Mail: ldoctors-at-gusila.org.ar

• XMMP (Jabber): allentiak-at-lugmen.org.ar;
ldoctors-at-gmail.com

• Web Site: http://allentiak.wordpress.com

• Timezone: UTC -3 (minus three)

Educational and Technical Background

I am a student at the Faculty of Exact, Physical and Natural
Sciences (FCEFyN)[0] of the National University of San Juan
(UNSJ)[1]. I graduated one month ago from my first major
(Information Systems) and I started my second one (Computer
Science). My IS thesis[2] (in Spanish) describes the potential
application of grid technology to the FCEFyN campus and includes
a working prototype as a proof of concept. I love languages:
besides my native Spanish, I speak fluent English (B2 CEFRL[3]
level) and French (B1) and some Portuguese (A1) and German (A1).

You will find a résumé of my skills and abilities in my
weblog[2].

Free Software Background

I am a GNU/Linux user since 1999 and I have evolved into a free
software activist in 2002. I am co-founder of a small Free
Software Users Group: GUSILA[3]. Although it is currently not so
active right now, GUSILA has contributed to highlight Free
Software as a Subject of discussion into the City of San Juan.
Specially worth mentioning is the organization of the local
editions of the FLISoL (Latin American Free Software Install
Fest) in San Juan, in 2005, 2006[4] and 2007[5].

Also, I have contributed PHP code to the web console of Pandora
FMS (Free Monitoring System)[6].

Specific Skills

I have some expertise with database design, management and SQL. I
have worked at my University’s data center servers room for one
year and done small projects for local clients. From those
experiences, I have learned the value of a well documented and
complete DB schema (that Gallery currently lacks of). That is why
I consider the documentation of the whole DB schema to be so
important.

References

Regarding my modeling abilities, you can ask Mrs. María Inés
Lund[7], one of my professors at the UNSJ. Regarding my
contribution to the Pandora FMS project, you can ask Sancho
Lerena[8]. If you need other references, just let me know.

I think that my knowledge of Analysis and Design Languages (such
as UML) along with A&D techniques (such as the UP) plus some
knowledge about Knowledge Management can help me be the right man
for the job.

[-1]
http://sourceforge.net/pm/task.php?func=detailtask&project_task_id=117411&group_id=7130&group_project_id=14056

[0] FCEFyN: http://www.fcefn.unsj-cuim.edu.ar/

[1] UNSJ: http://www.unsj.edu.ar

[2] Web log / Web site http://allentiak.wordpress.com

[3] GUSILA: http:/www.gusila.org.ar

[4] FLISoL 2006@San Juan:
http://installfest.info/FLISOL2006/Argentina/SanJuan

[5] FLISoL 2006@Rivadavia,San Juan:
http://installfest.info/FLISOL2007/Argentina/Rivadavia

[6] http://pandora.sourceforge.net/en/index.php?sec=about

[7] María Inés Lund: mlund-at-iinfo.unsj.edu.ar

[8] Sancho Lerena: slerena-at-gmail.com

3: Link to Further Information:

Acá va un PDF con mi tesis de grado: “Tecnología Grid para Cálculo Intensivo en la FCEFyN“, bajo licencia GNU FDL (versión 1.2 o cualquier versión posterior publicada por la FSF). Los comentarios son bienvenidos

This is the text of my proposal for the Google Summer of Code 2008 “Packagable GT”. The Organization is The Globus Alliance. All comments are welcome.

“Packagable GT”

1 Abstract (2500 characters limit)

1.1 Proposal Name

“Packagable GT” (Organization: The Globus Alliance)

1.2 Problem

Lack of a Globus Toolkit (GT) source building process that allows eventual compatibility with standard GNU/Linux packaging systems.

1.3 Purpose

To ease GT source’s eventual packaging into standard GNU/Linux distributions

1.4 General Objective:

• To adapt the current GT source building process in order to enable its eventual packaging into standard GNU/Linux distributions

1.5 Deliverables

For the Mid-term Evaluation:

• A complete analysis of the GT building process, with details on how GPT specific actions could be modularized.

For the Final Evaluation:

• Modified GT building process, easier to package into a Deb/RPM-based GNU/Linux distribution

• (Optional) GT packages for mainstream GNU/Linux distributions (especially Debian/Ubuntu Debs and SuSE/Fedora/Mandriva RPMs)

1.6 Web Site

http://allentiak.wordpress.com

2 Detailed Proposal (7500 characters limit)

2.1 Proposal Name

“Packagable GT”

2.2 Problem

Lack of a Globus Toolkit (GT) source building process that allows eventual compatibility with standard GNU/Linux packaging systems.

2.3 Purpose

To ease GT source’s eventual packaging into standard GNU/Linux distributions

2.4 General Objective:

• To adapt the current GT source building process in order to enable its eventual packaging into standard GNU/Linux distributions

Specific Objectives

• To classify each step of the current GT source building process into one (or more) of three class of functions (binary building, configuration files generation and installation of the two previous elements) and analyze the inter-dependencies between all of them.

• For each source building process step, make the GPT work in a modular way (to separate its functions into the three classes defined above).

2.5 Deliverables

For the Mid-term Evaluation:

• A complete analysis of the GT building process, with details on how GPT specific actions could be modularized.

For the Final Evaluation:

• Modified GT building process, easier to package into a Deb/RPM-based GNU/Linux distribution

• Documentation on the new building process

• (Optional) GT packages for mainstream GNU/Linux distributions: at least one using each packaging format (Deb and RPM).

2.6 Benefit for the GT Community

To allow the eventual integration of GT into popular GNU/Linux distributions, given that independent binary and configuration files will be easier to build and to maintain.

2.7 Motivation

GT uses its own packaging system, GPT. While this packaging system might be appropriate for GT, it is rather too GT-specific. There is a mixture between the building, configuration and installation sections of the entire GT components (both binaries and configuration files)’ creation process[-1].

Such a situation makes impossible to package the GT following any distribution packaging policy in a way that allows coherent configuration of the installed binaries. Thus not allowing the growing of the GT’s popularity.

In order to allow the GT to be packaged into any distribution, a modified GPT building process that separates the three parts defined above is needed. Given that GNU/Linux is the most popular choice when deploying a grid solution, the packaging formats to consider will be Deb and RPM.

However, to achieve 100% compatibility with any of the previously mentioned packaging standards is not easy. Both RPM and Deb have their specific configuration and dependencies aspects; and the GT building process is complex.
That is why a RPM/Deb 100% compatible GT package is an **optional** deliverable of this proposal. In case this is not possible, the resulting modified GPT-based process should allow (or, at least, ease) an eventual RPM/Deb packaging.

2.8 Activities

This is how it is intended to proceed.

1. Research on how GPT works.

2. Analysis of the details of the current GT building process (GPT-based) in order to find non-isolated tasks (building, configuration and installation). This step is crucial, given the size and complexity of the GT source code.

3. Research on how Deb and RPM work.

4. Mocking up of possible ways to modify the current GT building process in order to isolate the previously defined types of tasks.

5. Modification of the current GT building process (GPT-based) so all tasks get isolated.

6. Proof of Concept:

(a) Building of new GT packages based on the modified GPT-based building process.

(b) Ideally, new GT Deb and/or RPM packages.

2.9 Considerations

• This project will be the student’s main activity during the considered period.

• Weekly status reports will be made.

• The communication with the rest of the GT Community will be fluent.

2.10 About the Student (Section written in first person)

My name is Leandro Doctors; I am 26 years old. I live in San Juan (Argentina), a small town located 1000 km to the west of Buenos Aires, not too far from the border with Chile.

Contact Info

• Name: Leandro Doctors

• E-Mail: ldoctors-at-gusila.org.ar

• XMMP (Jabber): allentiak-at-lugmen.org.ar; ldoctors-at-gmail.com

• Web Site: http://allentiak.wordpress.com

• Timezone: UTC -3 (minus three)

Educational and Technical Background

I am a student at the Faculty of Exact, Physical and Natural Sciences (FCEFyN)[0] of the National University of San Juan (UNSJ)[1]. I graduated one month ago from my first major (Information Systems) and I started my second one (Computer Science). My IS thesis[2] (in Spanish) describes the potential application of grid technology to the FCEFyN campus and includes a working prototype as a proof of concept. I love languages: besides my native Spanish, I speak fluent English (B2 CEFRL[3] level) and French (B1) and some Portuguese (A1) and German (A1).

You will find a résumé of my skills and abilities in my weblog[2].

Free Software Background

I am a GNU/Linux user since 1999 and I have evolved into a free software activist in 2002. I am co-founder of a small Free Software Users Group: GUSILA[3]. Although it is currently not so active right now, GUSILA has contributed to highlight Free Software as a Subject of discussion into the City of San Juan. Specially worth mentioning is the organization of the local editions of the FLISoL (Latin American Free Software Install Fest) in San Juan, in 2005, 2006[4] and 2007[5].
Also, I have contributed PHP code to the Pandora Free Monitoring System[6].

Grid Computing Background

I have been investigating about grid computing for about one year, in order to write my grade thesis for my Information Systems major. It describes the potential application of grid technology to the campus of my Faculty (the FCEFyN). While researching, I begun to like grid computing to the point it has become my main field of research since. Currently, I’m working towards the establishment of a grid and cluster computing research group at the Institute of Informatics (IdeI) of the FCEFyN, in collaboration with members of the Argentinian Grid Community.

References

Regarding my modeling abilities, you can ask Mrs. María Inés Lund[7], one of my professors at the UNSJ. Regarding my research group project, you can ask Javier Echaiz[8], from the National University of the South (UNS) and Sergio Zapata[9], the Director of the IdeI. Regarding my contribution to the Pandora FMS project, you can ask Sancho Lerena[10]. If you need other references, just let me know.

I think that my knowledge of Analysis and Design Languages (such as UML) along with A&D techniques (such as the UP) plus some knowledge about Knowledge Management can help me be the right man for the job.

[-1] Tibor Kalman (instant-grid.de Project) tibor.kalman-at-gwdg.de: Private Conversation.

[0] FCEFyN: http://www.fcefn.unsj-cuim.edu.ar/

[1] UNSJ: http://www.unsj.edu.ar

[2] Web log / Web site http://allentiak.wordpress.com

[3] GUSILA: http:/www.gusila.org.ar

[4] FLISoL 2006@San Juan: http://installfest.info/FLISOL2006/Argentina/SanJuan

[5] FLISoL 2006@Rivadavia,San Juan: http://installfest.info/FLISOL2007/Argentina/Rivadavia

[6] http://pandora.sourceforge.net/en/index.php?sec=about

[7] María Inés Lund: mlund-at-iinfo.unsj.edu.ar

[8] Javier Echaiz: jechaiz-at-cs.uns.edu.ar

[9] Sergio Zapata: szapata-at-iinfo.unsj.edu.ar

[10] Sancho Lerena: slerena-at-gmail.com

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