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                                          June 23, 2013

                                          Hadoop news and rumors, June 23, 2013

                                          Cloudera

                                          *Of course, there will always be exceptions. E.g., some formats can be updated on a short-request basis, while others can only be written to via batch conversions.

                                          Everybody else

                                          July 27, 2011

                                          Introduction to Zettaset

                                          Zettaset is confusing, but as best I understand:

                                          Read more

                                          July 10, 2011

                                          Hadoop futures and enhancements

                                          Hadoop is immature technology. As such, it naturally offers much room for improvement in both industrial-strengthness and performance. And since Hadoop is booming, multiple efforts are underway to fill those gaps. For example:

                                          (Zettaset belongs in the discussion too, but made an unfortunate choice of embargo date.)

                                          Read more

                                          July 6, 2011

                                          Hadoop hardware and compression

                                          A month ago, I posted about typical Hadoop hardware. After talking today with Eric Baldeschwieler of Hortonworks, I have an update. I also learned some things from Eric and from Brian Christian of Zettaset about Hadoop compression.

                                          First the compression part. Eric thinks 6-10X compression is common for “curated” Hadoop data — i.e., the data that actually gets used a lot. Brian used an overall figure of 6-8X, and told of a specific customer who had 6X or a little more. By way of comparison, it sounds as if the kinds of data involved are like what Vertica claimed 10-60X compression for almost three years ago.

                                          Eric also made an excellent point about low-value machine-generated data. I was suggesting that as Moore’s Law made sensor networks ever more affordable:? Read more

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