When participating recently in a sprint held at Google to document four free software projects, I thought about what might have prompted Google to invest in this effort. Their willingness to provide a hotel, work space, and food for some thirty participants, along with staff support all week long, demonstrates their commitment to nurturing open source.

Google is one of several companies for which I'll coin the term "closed core." The code on which they build their business and make their money is secret. (And given the enormous infrastructure it takes to provide a search service, opening the source code wouldn't do much to stimulate competition, as I point out in a posting on O'Reilly's radar blog). But they depend on a huge range of free software, ranging from Linux …

Series

What are the chances for a free software cloud?

• Resolving the contradictions between web services, clouds, and open source
• Defining clouds, web services, and other remote computing
• Why clouds and web services will continue to take over computing
• Why web services should be released as free …

Series

What are the chances for a free software cloud?

• Resolving the contradictions between web services, clouds, and open source
• Defining clouds, web services, and other remote computing
• Why clouds and web services will continue to take over computing
• Why web services should be released as free software (12/20)
• Reaching the pinnacle: truly open web services and clouds (12/22)
…

Partitioning, new with MySQL 5.1, has complicated interactions with queries and indexes.  If one isn’t careful it is easy to degrade performance.   For example, select queries that go with that grain (queries where partition elimination occurs) can be much quicker, but select queries that go against that grain can be much slower.   Queries that go against the grain must query each partition, so for a table with 12 partitions,  one query against that  table can result in 12 queries, one against each of the partitions.  An example of this would be a query against a month partitioned table that is looking to see how much activity a product had in the past 12 months. 

The ideal partitioning scheme would be a system where all queries only needs to access data from one partition.  This describes enterprise software deployed as a service where multiple enterprise tenants all …

I took part in a webinar on cloud computing today, including some of the top names in cloud computing services. As Pythian has some MySQL clients using cloud computing, I was particularly interested…

I was interested by the many levels of what cloud computing means, including such categorizations as Facebook apps being a part of the cloud. I think many of us consider cloud computing to mean “virtual infrastructure as a service” and overlook some pretty robust cloud computing that’s already out there, such as “application components as a service” and “software [platform] as a service”.

Following are my notes:

“Our objective today is to cut through some of the noise associated with ‘cloud’ and get to a real world approach for getting some serious value from the cloud.”
…