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August 2, 2018

How to ask friendly Amazon Goddess Athena to get your partitioned data from Hadoop cluster

Do you hesitate if you need a Hadoop cluster for a few Hive tables only ?

Do you query your data not so frequently ?

Do you want to save money on servers' maintenance and put your l...

May 3, 2018

Dedicated to mongodump haters

MongoDB 3.6 brought us a number of new improvements we can take now into consideration if it's more convenient, reliable and fast platform for NoSQL. A quick look into the website give us the most important add-ons to facilitate our work:

  • ...

March 8, 2018


In the last period we encounter a growing interest in MariaDB products (Galera Cluster, MaxScale for example) among our customers. Due to a number of projects related to this platform I would like to concentrate some prominent advantages of the platform an...

August 28, 2017

Client’s requirements:

The R&D team decided to delete an old non-relevant data of customers in order to decrease database size. The marketing department send this data in CSV format only therefore we need to load these accounts into MySQL temporary table for the future...

August 14, 2017

Client’s requirements:

                Case #1: Stand-alone server with the old version 3.2.12

Case #2: Replica set with even number of servers (2) on the same geolocation (Holland) with an arbiter ins...

August 7, 2017

Client’s requirements:

Even number of servers (4) on two geolocations (UK and Holland) with a following priority - failover order from UK to Holland, arbiter should be installed on Azure.

Servers hostnames (for demonstration only):


May 1, 2017

Pavel Zeger is an open - source data platform consultant at NAYA-Tech.

MySQL server upgrade with minimum downtime

(as a part of migration from Ubuntu to CentOS)

We suggested to one of our client to migrate Linux servers from Ubuntu to CentOS and upgrade MySQL instances to...

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