App Engine datastore tip: monotonically increasing values are bad - Ikai Says...
When saving entities to App Engine’s datastore at a high write rate, avoid monotonically increasing values such as timestamps. Generally speaking, you don’t have to worry about this sort of thing until your application hits 100s of queries per second. Once you’re in that ballpark, you may want to examine potential hotspots in your application that can increase datastore latency. To explain why thi
How Google Serves Data from Multiple Datacenters - High Scalability -
Update: Streamy Explains CAP and HBase's Approach to CAP. We plan to employ inter-cluster replication, with each cluster located in a single DC. Remote replication will introduce some eventual consistency into the system, but each cluster will continue to be strongly consistent. Ryan Barrett, Google App Engine datastore lead, gave this talk Transactions Across Datacenters (and Other Weekend Projec
Google I/O 2009 - ..Scalable, Complex Apps on App Engine
Google I/O 2009 - Building Scalable, Complex Apps on App Engine Brett Slatkin Creating relatively simple applications that scale with App Engine can be easy after the initial learning curve. But larger applications with more complex functionality are still hard to get right, especially when you need to scale. This talk will go over more advanced data structures and techniques to use when bui
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