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Weekly notes 10
Summer has been relative nice this far even here in Finland and my short holiday is just couple of days away. But before that it’s time to check this years Java tools and technologies landscape report, get some useful plugins for Atom, start developing a React application with no configuration and read about the benefits…
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Expanding your horizons on JVM with Kotlin
The power of Java ecosystem lies in the Java Virtual Machine (JVM) which runs variety of programming languages which are better suitable for some tasks than Java. One relatively new JVM language is Kotlin which is statically typed programming language that targets the JVM and JavaScript. You can use it with Java, Android and the…
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Web analytics with Piwik: keeping control over your own data
Web analytics is one the essential tools for a website and including measuring web traffic and getting information about the number of visitors it can be also used as a tool to assess and improve the effectiveness of a website. The most common way to collect data is to use on-site web analytics, measure a…
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Weekly notes 9
Summer is here and mountain biking trails are calling but keeping up with what happens in the field never stops. This week Apple had their worldwide developers conference which filled up social media although didn’t present anything remarkable. In the other news there was good collection of slides for Java developers, ebook for DevOps and…
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Docker containers and using Alpine Linux for minimal base images
After using Docker for a while, you quickly realize that you spend a lot of time downloading or distributing images. This is not necessarily a bad thing for some but for others that scale their infrastructure are required to store a copy of every image that’s running on each Docker host.… Jatka lukemista →
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Weekly notes 8
The Spring has been quite busy at work but Summer is just around the corner and that means either holidays or having some time to learn new things and see how things could be make better. My weekly notes has turned out to be monthly notes but that’s how things sometimes work out.… Jatka lukemista…
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Avoiding JVM delays caused by random number generation
The library used for random number generation in Oracle’s JVM relies on /dev/random by default for UNIX platforms. This can potentially block the WebLogic Server process because on some operating systems /dev/random waits for a certain amount of “noise” to be generated on the host machine before returning a result. Although /dev/random is more secure,…
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Weekly notes 7
Easter and couple of days of free time is good for taking a break from the routines or finally have some time to develop your personal pet projects. At least my Highkara news reader for iOS needs some UI tests for screenshots and maybe I get to finish my imgur app for tvOS.… Jatka lukemista…
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Container orchestration with CoreOS at Devops Finland meetup
Development and Operations, DevOps, is one of the important things when going beyond agile. It’s boosting the agile way of working and can be seen as an incremental way to improve our development practices. And what couldn’t be a good place to improve than learning at meetups how others are doing things.… Jatka lukemista →
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Problems with installing Oracle DB 12c EE, ORA-12547: TNS: lost contact
For development purposes I wanted to install Oracle Database 12c Enterprise Edition to Vagrant box so that I could play with it. It should’ve gone quite straight forwardly but in my case things got complicated although I had Oracle Linux and the pre-requirements fulfilled. Everything went fine until it was time to run the DBCA…