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Displaying posts with tag: Commentary (reset)
Brian Aker: 20GB doesn’t fit on a single server

Brian got interviewed by O’Relly recently, and part of it quoted him as saying this:

When everything doesn’t fit onto a computer, you have to be able to migrate data to multiple nodes. You need some sort of scaling solution there… MapReduce works as a solution when your queries are operating over a lot of data; Google sizes of data. Few companies have Google-sized datasets though. The average sites you see, they’re 10-20 gigs of data.

Users shouldn’t need to put that data onto multiple machines anyway. In fact, I don’t think we need a multi-machine solution for the common case at all. We need software that can scale up with today’s hardware. 37signals likes to run boxes with half a terabyte of RAM. Are we there yet with MySQL and InnoDB? No. Postgres? No. Anything …

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NoSQL doesn’t mean non-relational

It seems that a lot of people equate non-SQL databases with non-relational-ness, or malign the word relational. This is pretty much pure ignorance. If you’ve ever uttered a sentence that includes the phrase “…non-relational database…” then I have two suggestions for you.

  1. Study relational algebra. At a bare minimum, read the Wikipedia article on relational algebra. There is much more you could do — take a class on the topic, or read C.J. Date’s SQL and Relational Theory (my review). Ask yourself how similar SQL is to the relational algebra. How is relational algebra different …
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Hello world!

Yes, I’ve started yet another blog. You think I would learn.

This time it’s bout MySQL. The database we …


Cary Millsap: Thinking Clearly about Performance

Cary Millsap has a concise, readable paper on performance. Anyone involved in database performance optimization should read it. Cary’s writing has heavily influenced the mk-query-digest tool for analyzing MySQL/PostgreSQL/Memcached/HTTP query performance, and I think you’ll get a lot more from mk-query-digest if you read this paper — and you should also read his book, reviewed here. It’s one of the top books on my Essential Books List.

Related posts:

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InfiniDB gets the release process right

InfiniDB has a sensible Enterprise/Community release process, which seems similar to what I suggested for MySQL. Its simplicity also stands in stark contrast to MySQL’s new release policy, which is hard to understand and has been confusing people.

Related posts:

  1. Thank you for the MySQL 5.4 Community Release MySQL 5.4
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MySQL Enterprise/Community split could be renewed under Oracle

One of MySQL’s notable projects was splitting the product into two editions: Enterprise Edition and Community Edition. This move alienated many in the community, and failed to create meaningful differentiation on either side, even with a team of people beating the community bushes for “contributions.” The net differentiation was ultimately Jeremy Cole’s SHOW PROFILES functionality, which made Community better than Enterprise. Sun put less effort into making this split work, and eventually they abandoned it.

But that could change under Oracle’s stewardship. Oracle’s promises to maintain a GPL …

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How to tell if someone is bullshitting

Ever been around a group of people discussing some technology and heard Cool-Whip phrases like this?

It’s not about MySQL versus PostgreSQL, it’s about using the right tool for the job.

Or how about this one?

You need to take the important factors into account before you decide whether [hot new fad] or [trusty old solution] is best suited for your application.

Both are signs that someone might be trying to sound important. In situations like this, I’ve noticed that the people I look up to usually don’t make weighty-sounding statements about other people’s systems. They talk about what they are qualified to talk about: either they say something about their own systems, or if it’s warranted and invited, they ask intelligent questions about other people’s systems.

People who only have vacuous generalities to contribute don’t talk about their own systems, because if they actually worked on …

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Why MySQL might not benefit from having a mother ship

As I was driving with a colleague in California a couple of weeks ago during the conference, the topic of conversation turned to the notion that Percona and the rest of the MySQL community really need the presence of a central entity that provides a recognized home for the MySQL server. The conversation went something like “I was talking to so-and-so, and he said, you know, you guys really need Sun/MySQL, because without the mother ship, things will fall apart and your own business will fail.”

I happen to believe this is FUD, and that the reverse might actually be true. (This is one reason why we’re competing head-on with MySQL.) Having a “mother ship” is in the long run, a very complex scenario to fully understand. There are all sorts of causes and effects that play out in subtle ways. I honestly doubt anyone can really …

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Selena’s thoughts on a hacker’s cooperative

Selena Deckelmann has posted some ideas about a “hacker’s cooperative” for PostgreSQL.

UC2009: How I Used Query Analysis to Speed up My Applications

The presentation slides for my Query Analysis talk here at the users conference are now available:

How I Used Query Analysis to Speed up My Applications

I’ll sort out the scripts and bits and pieces I use once I get back to the office next week, for those people waiting for that material.

Showing entries 61 to 70 of 105
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