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Since 2016 I’ve been playing with photography more seriously and after lots of money spend, lot of gadgets (the GAS effect) I have now settle on: Sony Alpha 6000 - quick, light, with a little handle to hold it while walking Sony 18-135 3.5-5.6 - covers it all, from wide scenes to magnificent insects, and portrait in between Simply great pictures Read more...
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I had a a classical computer issue, you know the story: I was in a rush to do some photographic work and I needed it to be done fast. I turn my computer on, and start working on a software that consumes a lot of CPU. My computer is slooooowwww and the fan is running full speed, which is rare. My initial thought is “ARG virus!”. The follow-up action is ‘ctrl-alt-delete’ and task maanger. Read more...
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A technical article but with simple words (I hope). In AWS words: Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment. The benefits of a CDN, which is to reduce the load on the origin (i.e. less servers to buy) and better serve readers (data is closer to them). Read more...
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After seeing the mighty power that data brought to some (very few) tech companies, I hear a lot about how collecting ALL data is the best thing to do in IT today. There are fewer references for proper use of the accumulated data, including results. I suspect that most companies do not know how to use the data collected and they keep it (making storage vendors rich), hoping that in some future it will all make sense. Read more...
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When you are on an RDS Postgresql on AWS, you can import data from S3 into a table, the official documentation is here. The documentation only shows very basic examples of files directly in the root folder of the buckek. It also assumes the use of psql which is great for scripting but rubish for human-work (i.e. copy paste). So here is my extension to the documentation: assumption You need to be connected to your RDS database. Read more...
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Back in 2009-2010, when I was a co-founder of Coblan srl (now defunct) we had won our first tender to manage all the infrastructure of two significant public hospitals receiving hundred of thousand of patients every year. We were two weeks in the contract, still trying to get a sense of the very complicated set of services, privacy needs and security requirement (i.e. 800 VMs, TB storage on Hitachi storage, massive 100+ CPU systems and (too) many Oracle Databases in cluster). Read more...
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This is valid for all new generation instances and regions Exclusions: the t family which is charged differently and the d2 and c4 which should NOT be considered current generation but are. “size” “costpercpu” “count” “xlarge” “0.04600000000000000000” “340” “2xlarge” “0.04600000000000000000” “335” “4xlarge” “0.04600000000000000000” “309” “large” “0.04600000000000000000” “291” “16xlarge” “0.04600000000000000000” “291” “8xlarge” “0.04600000000000000000” “261” “12xlarge” “0.04600000000000000000” “240” “24xlarge” “0.04600000000000000000” “214” “18xlarge” “0.04600000000000000000” “50” “9xlarge” “0.04600000000000000000” “50” “32xlarge” “0.04600000000000000000” “27” “6xlarge” “0.04600000000000000000” “27” “10xlarge” “0. Read more...
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The one working with me recommend Datacamp to start. I trust them. Read more...
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Often, and I mean really often, I forget to use the various gmail search operators. So as a promemoria to me and help to you, here is the link https://support.google.com/mail/answer/7190?hl=en PS: you can save a search as a bookmark, easy when you often search for the same things over and over again Read more...
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Moving or not moving to the cloud is a question for which a CTO needs to have an answer. For most CTO, the answer is a definite “yes”; the technical reasons are overwhelming. Yet as we know technology is complicated to explain to non-tech, and the fact that moving to the cloud includes a paradigm shift on money management (e.g. CAPEX vs OPEX) makes it hard to get the CFO on your side. Read more...