Many database professionals use Mac for their daily work. Devart is going to develop its software products for Mac platform in future. But for now, our users owing macOS devices can face some issues with procuring high-quality and comfortable work. One of the best solutions to resolve such issues is a software called Parallels Desktop. This is […]

This blog post completes the series that we have been composing to detail every single new feature added in the latest MySQL InnoDB Cluster release, as mentioned in the release announcement of 8.0.14. We’ll close the series now with the details about the new features that improve the management capabilities of MySQL Shell: “Extended status information available from <Cluster.>status()” and “Redesigned and extended <Cluster.>rescan()”.…

Facebook Twitter Google+ LinkedIn

This year at our Open Source Database Conference we’re celebrating open source database technologies that don’t fit into the MySQL®, MongoDB®, MariaDB®, or PostgreSQL realms by featuring them in their very own track. The glamorously-named Other Open Source Databases track! As unbiased champions of open source database solutions, we embrace all flavors of open source database, and pride ourselves at presenting one of the biggest events dedicated to any and all OSDBs.

Another innovation this year is the introduction of a Java programming for open source databases track. Maybe that would be of interest?

The conference takes place at the end of May in Austin, a fantastic place to visit, and state capital of Texas.

As mentioned in …

Introduction :

Ansible is an open-source IT automation engine which can remove drudgery from your work life, and will also dramatically improve the scalability, consistency, and reliability of your IT environment.

Nowadays without automation to manage the Databases is very tricky. We are using Ansible as an infra automation tool to install, configure and manage DB infra at Mydbops.

For example, you have 10 Linux server’s which needs MySQL latest version 8.0 to be installed. Anyone can install MySQL using yum or apt-get. But the manual installation is a time-consuming process.

In this blog, I am going to describe the installation of MySQL 8.0 using Ansible.

Ansible Architecture :

Host …

If you use MaxScale to route queries from various servers to some MariaDB server(s), when viewing the processlist on the MariaDB server, you will see MaxScale’s host for any “host” information related to that connection or its queries.

When tracking down problematic queries, it can be helpful to know what originating host of that query.

MaxScale’s proxy protocol to the rescue.

The proxy protocol was introduced in MaxScale 2.2 and MariaDB 10.3.

To enable it, it is quite simple (essentially just 2 changes).

1. In MariaDB, you need to set the variable proxy_protocol_networks in your my.cnf file (you can specify comma-separated IP addresses and/or subnetworks, as well as localhost and ::1):

proxy-protocol-networks=::1, 192.168.0.0/16, localhost

This one, which I will use as-is, is the example from the …

In just over two weeks, on Feb 2-3, FOSDEM 2019 will take place. As happens every year, the first weekend of February The University Libre de Bruxelles (ULB) opens the doors of campus Solbosch to the worldwide open source community. What started as a small gathering of open source hackers has now become one of the world’s largest open source community events with speakers from all over the globe. All major open source software vendors want to be there and you will find boots for every possible Linux distribution.

For the third year in a row now, Oracle is organizing a pre-FOSDEM MySQL day. As the name suggests, this event takes place the day before FOSDEM (Friday, Feb 1st). This day is loaded with content on MySQL 8.0. …

TiDB is an open-source distributed database developed by PingCAP. This is a very interesting project as it is can be used as a MySQL drop-in replacement: it implements MySQL protocol, and basically emulates MySQL. PingCAP defines TiDB is as a “one-stop data warehouse for both OLTP (Online Transactional Processing) and OLAP (Online Analytical Processing) workloads”. In this blog post I have decided to see how TiDB performs on a single server compared to MySQL for both OLTP and OLAP workload. Please note, this benchmark is very limited in scope: we are only testing TiDB and MySQL on a single server – TiDB is a distributed database out of the box.

Short version: TiDB supports parallel query execution for selects and can utilize many more CPU cores – MySQL is limited to a single CPU core for a single select query. For the higher-end hardware – ec2 …

Partitioning is a process in which a single larger table is split into several smaller tables (physically) and still considered as a single table.It is generally a good idea for the tables whose size is in a few 100 GB’s.

While performing select,update,delete operations in a partitioned tables, we can notice a better performance in queries .This simple process of optimization is called partition pruning in which we can avoid scanning the certain partitions which does not have any matching values based on partition key.

The following example will explain you in detail about the partition pruning

Here I have used an Amazon linux 2 machine

Hardware Info

1 core CPU
1 GB RAM 
20 GB Disk (SSD) 
maximum of 3000 IOPS

MySQL 5.7 is installed in this machine and two tables (one is not partitioned and other is partitioned) with 1.7 million records of  same data is loaded in using …

This blog post follows the series that we have been composing to detail every single new feature added in the latest MySQL InnoDB Cluster release. As listed in the release announcement of 8.0.14, we’re very happy with new features that greatly enhance the whole experience and capabilities of InnoDB cluster!…

Facebook Twitter Google+ LinkedIn

For a very long time – since when multiple CPU cores were commonly available – I dreamed about MySQL having the ability to execute queries in parallel. This feature was lacking from MySQL, and I wrote a lots of posts on how to emulate parallel queries in MySQL using different methods: from simple parallel bash script to using Apache Spark to using ClickHouse together with MySQL. I have watched parallelism coming to PostgreSQL, to new databases like TiDB, to …