A colleague talked to me about this tool this week and I felt in love. It helps to easily navigate into your git repository. You can have a look on last log and directly in the same interface the diff of the current commit. I’ve attached one screenshot to let you see how cool it is. The are also a lot of other features but just for browsing purpose. You can’t update or make changes.

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Fig is a fast, isolated development environments using Docker. For some features, it can be compared to Vagrant where the Dockerfike is not enough powerful to build multiple instances. For example, let’s say you want to test a new product version of a software like MediaWiki and you want to build the complete stack. So you may need to have several tools categories (depending of the usage): Web: Nginx, PHP-FPM, Varnish App Cahing: Redis Search: ElasticSearch In Vagrant you can natively build 3 VM and interconnect them without the need of additional tool.

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One of my ex-boss talked to me about Coursera a year ago. It’s a website where you can freely learn several things from high graduated school. Most ofter, it’s technology related and I wanted to test it to learn Java. I subscribed to 2 sessions. One for the java basics and the other one for the object oriented aspect (in french). I’ve started it a few weeks ago the first part and what I can say is, it’s very good.

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You may remember the first introduction of that tool here. I’ve made changes to support tables’ partition, to avoid a big lock on huge tables. The solution is to rebuild every partition one by one instead of rebuilding the whole table. This is smoother and less stressing Galera. I hope you’ll enjoy this new version (v0.2). Note: I still got issues on MariaDB 10 with such thing, I’m working on it.

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The first thing you generally want to do when you have any new Storage system like SSD, Disk arrays or a Cluster Ceph, is benching. You will want to know how can read and write throughput. FIO is able to do that for you, here is an example: [global] ioengine=libaio invalidate=1 ramp_time=5 direct=1 size=5G runtime=300 time_based directory=/home [seq-read] rw=read bs=64K stonewall [rand-read] rw=randread bs=4K stonewall [seq-write] rw=write bs=64K stonewall [rand-write] rw=randwrite bs=4K stonewall You then will have a good output of everything you need to know.

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