About

Hi!

This is just another programmer personal blog. It contains various interesting things from information technologies world, which I would like to share with you, such as:

and others

Read, comment, criticize or thank, if you find something useful.

You’re welcome!

Running QEMU VM with the latest kernel inside 2.6 OpenVZ container.

There are many of cheap NAT OpenVZ VPSes on market. However, OpenVZ virtualization has certain limitations and comes with old… Read more…
Fault tolerant PostgreSQL cluster with automatic failover using Repmgr and Barman. Part 1. Introduction.

Right off the bat, this is what you'll get in the end: Synhronous standby server using repmgrRepmgr daemons running not… Read more…
“Buffer I/O error on dev sr0, logical block 0, async page read” when using USB dongle

A while ago a faced a problem with USB modem. There were tons of similar error messages during boot and… Read more…
About distribution, hashing and target segment number calculation in GPDB 5x.

In GPDB 5x, table’s data can be distributed RANDOMLY or by set of columns. The essential parts of column-based distribution… Read more…
Multicast Proxy Server

My new OpenSource project. A fast hybrid of Reverse Proxy and Deep Packet Inspection (DPI) written on C.Unlike classic Reverse… Read more…