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Showing posts from May, 2015

Kronometrix Analytics Appliance: Xen vs ESXi

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Latest Update: Tue May  5 15:54:10 EEST 2015 We heavily use Redis as part of our Kronometrix analytics software. For those which do not know what Redis is, see here . Recently we have upgraded our kernel from Redis 2.8.x branch to 3.x, latest release. And we were curious to see what sort of improvements and how latest Redis release works for our application in regard with ESXi and Xen. As already said, Kronometrix Appliance can works as a: physical appliance, operating system + analytics software on bare metal virtual appliance, running as one or many virtual machines within Xen or ESXi We are planning to check the redis-server proces utilization, extract a stack trace for the redis-server on both hypervisors. Xen Kronometrix 1.0.0 on Xen Generic X86_64 Server Ubuntu Server 12.04.5 LTS, Xen 4.2.2 amd64 1 x Intel(R) Core(TM) i7 CPU 930 @ 2.80GHz Hyperthreading: Available, ON 24 GB RAM 1 TB internal storage for dom0, 2TB NAS for domU We ha

The Appliance ...

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Our analytic software, Kronometrix , runs on top of an operating system, tuned and configured for data analysis, bundled as a ready image, which can be downloaded and installed. The idea is simple, we wanted to offer something which is already tested, tuned and configured for hundreds, thousands of data sources. We call this,  the K ronometrix Appliance  and we want it to be ready to: work with or without WAN connection work on batteries and solar panels handle large or small volume of data in real-time analyse data from different data sources, different industries have zero-administration and no maintenance be affordable   Memory it's the new hard disk  Another PHP or Java application on top of MySQL ? Or maybe PostgreSQL ? Right ? Boringggg. When we started Kronometrix , we basically cleaned the table and we wanted to see things aligned for future not 1978. The first thing, was where to store all the time series data and how to access that. And we wen