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Which Stream Processing Engine: Storm, Spark, Samza, or Flink?

According to discussions about them during the NoSQL Now conference and the ways they are described, Storm, Spark, and Samza solve similar problems in different ways. This article discusses the differences among Spark, Storm, and Samza. It is nice to see that so many open source packages are readily available in the analytics space, but [...]

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Open Source Packages and NoSQL Now Conference in San Jose: Part 2

This is a continuation from Part 1. In this blog, I will discuss Flink and Samza. Flink Vladimir Bacvanski of SciSpike (leading training and consulting firm specializing in advanced object-oriented and enterprise technologies according to their web site) gave a talk on Flink, which is another streaming and batch dataflow engine. Its features are briefly [...]

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An Introduction to Data Science

I went to two meetups at H2O, which provides an open source predictive analytics platform. The second meetup was full of participants because its theme was an introduction to data science. Data science is a new buzzword, and I feel like everyone claims to be a data scientist or something relating to that these days. [...]

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Open Source Packages at NoSQL Now Conference in San Jose: Part 1

At the recent NoSQL Now Conference in San Jose, I attended several sessions and realized the well-established position of open source packages. During the conference, many people talked about how open source is creeping into the enterprise. Because of my past involvement with MySQL and JBOSS, I’ve experienced pushback from early customers firsthand. But now [...]

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What Is NEC Doing in Silicon Valley? Part 2

This is a continuation from Part 1. SDN and NFV SDN (intra–data center) I asked Iwata his views on SDN and NFV. He said that in a narrow scope SDN and Openflow are synonymous, while in a wide view SDN includes automation and management of networking and data centers, including such things as orchestration and [...]

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What Is NEC Doing in Silicon Valley? Part 1

This is my first time to interview a representative of a Japanese company in Silicon Valley. I was an employee of one of the US subsidiaries of NEC about 20 years ago for several years. Like any other large corporation in the world, NEC has many divisions working on many different areas of C&C (computer [...]

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Which Buzzwords Were Floating Around at DatacenterDynamics Conference SF 2015? – Part-1

When I started to cover data centers in 2008, I was often asked which side of the two elements I focused on. The expected answer was either power or cooling. My answer of IT/software confused people because they could not understand what someone who claimed to be a software guy was doing there. Fast-forward, and [...]

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Have You Found the Best Way to Manage Your Data Centers Yet? Part 2

This is a continuation from Part 1. Comprehensive data center operations support When DCIM emerged as a segment, people did not get it. DatacenterKnowledge reported that Gartner published its first Magic Quadrant (MQ) report on DCIM in 2014.  No single vendor satisfied all the required DCIM functions, and some started to partner with others to [...]

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Have You Found the Best Way to Manage Your Data Centers Yet? Part 1

I have covered the field of data centers for some time, and I’ve heard many subjects discussed, from comatose servers, cooling technologies/methods, modular structures, and monitoring to asset management. Over time, many tools to assist each subject area have been developed and presented. The most recent are called data center infrastructure management tools, known as [...]

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Good Survey Session of Network Security Software @MacITConf – Part 2

This is a continuation from Part 1.   Network utilities ŸBasic security module (BSM):a security audit API and file format originally developed by Sun. ŸOpenBSM: portable, open source implementation of Sun’s BSM. ŸTcpdump: common packet analyzer that runs under the command line and works on most Unix-like operating systems, including OS X. ŸNetwork utility: available [...]

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