Truth beind Engineering

When you’re working with TBs and PBs of data you get some serious realizations. Beautifully put forth in the penultimate slide of this presentation.

All engineering solutions are transient.

Nothing’s perfect but some solutions are good enough for a while.

Scalability solutions aren’t magic. They involve partitioning, indexing and replication.

All data for real-time queries MUST be in memory.

Disk is for writes only.

Some problems can be solved by pre-computation, but a lot can’t.

Exploit locality where possible.

Source

Ajax @ Google

Here are some pictures which I have collected. These pictures are taken from the google websites of different countries ( notice the URLs in the browser) and rest of it is self-explanatory.

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