This are the slides of the talk I gave in #wp09 about scalability. They are in spanish but I will translate them to english in the near future.
Webprendedor 2009 Escalabilidad
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This Nov 20th I will give a talk on the challenge of scalating a web application, main topics will be:
Plan to grow: While building your app, ALWAYS consider scalability.
Know your technology stack: From the file system to the edge cache.
Keep it simple: DB sharding, just say no.
Be ready to change: Have you considered NoSQL already?
Don't be lazy: Great for prototyping not necesarily means good for production.
Performance tunning: chasing the next bottleneck.
Check http://www.webprendedor.com for the rest of the workshops and related info.
Hibernate is one of the best object/relational persistence and query service. Basically it lets you code your application using POJOs and it takes care of persisting it to a RDBMS back-end. If you couple this with a HA/High performance cache service like JbossCache as a second level cache you get a very fast, high availability, easy to code solution, to manage the data in your application.
In Hibernate you can "find" the objects you need (using a primary key), modify them and the back-end will make sure the changes are propagated to the database. Hibernate also lets you use a SQL like query language (HSQL) to perform data transformation ("update MyObject set property = newvalue") however, if you are using a second level cache it will evict all the objects of that class not only the affected by the query (Read more)
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Seth Godin explica la importancia de los liderazgos para mejorar nuestro mundo.
uno de los motivos por los que hacemos Bligoo es para facilitarle la tarea a esos líderes y pronto tendremos Bonitas novedades al respecto.
Bienvenidos a Suena Familiar, un sitio donde compartir experiencias,
alegrías y penas, curiosidades, consejos, fotos, coincidencias,
historias, dudas y muchas cosas más.Hemos creado esta comunidad
porque compartimos intereses con muchos otros que publican artículos
por aquí y por allá y quisimos hacer un lugar de encuentro, para la
familia.
Nosotros somos un matrimonio, llevamos 5 años de casados y tenemos
una hija (maravillosa por cierto, como todos los niños). Ambos somos
profesionales, vivimos en un departamento arrendado, trabajamos de 9 a
6, a veces un poco más, a veces mucho más. Jugamos todos los días con
nuestra hija, cenamos todos los días juntos y nos contamos lo que nos
ha pasado en el día. Los fines de semana salimos siempre a pasear y a
ver a los abuelos. Ahorramos para comprar una casa, ese es nuestro
plan, queremos tener una (Read more)
Ok, quien puede ir hoy en la noche a Kara?
Me confirmo por telefono Carlos (Elcurita), y yo tb voy.
Tenemos guardada la instancia hasta que bajamos a la Maiden asique seguimos desde ahi.
Confirmo, por adelantado, que voy a todos los raids de kara los miercoles y dominigo a las 10.00pm, en caso de no poder ir voy a avisar con anticipacion a Khir y/o Elcurita.
saludos!,
Rij