We have seen with most of the consulting projects where the customer might be having a dedicated DB (MySQL) server ,but running with a default configuration, without any optimisation for underlying hardware, “An idle hardware is similar to idle money will give you no returns”.

Well again if you are from a non-DBA background and you have chosen InnoDB as your engine of choice. The next question will be, what are the major variable that needs to be tuned for the available hardware? here is the answer for you

In this post, We are going to detail about the variable innodb_dedicated_server in MySQL 8.0.11. This variable solves our above …

Please join Percona’s Principal Architect Alex Rubin as he presents MySQL, Percona XtraDB Cluster, ProxySQL, Kubernetes: How they work together to give you a highly available cluster database environment on Tuesday, May 29th at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4).

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In this webinar, Alex will discuss how to deploy a highly available MySQL database environment on Kubernetes/Openshift using …

MySQL 8.0.11 comes with a catalog of 5108 spatial reference system (SRS) definitions, and 479 of these are geographic. We usually just refer to them by SRID, but in this blog post we’ll dive into the details and try to understand the definition itself.…

Some years ago, Peter Z wrote a blogpost about using MySQL Sandbox to deploy multiple server versions. Last February, Giuseppe  introduced us to its successor: dbdeployer. In this blogpost we will demonstrate how to use it. There is a lot of information in Giuseppe’s post, so head there if you want a deeper dive.

First step is to install it, which is really easy to do now since it’s developed in Go, and standalone executables are provided. You can get the latest version …

In this blog post, I will show you how easy it is to set up a Percona Monitoring and Management server on Google Compute Engine from the command line.

First off you will need to have a Google account and install the Cloud SDK tool. You need to create a GCP (Google Cloud Platform) project and enable billing to proceed. This blog assumes you are able to authenticate and SSH into instances from the command line.

Here are the steps to install PMM server in Google Cloud Platform.

1) Create the Compute engine instance with the following command. The example creates an Ubuntu Xenial 16.04 LTS compute instance in the us-west1-b zone with a 100GB persistent disk. For production systems it would be best to use a 500GB disk instead (size=500GB). This should be …

Back in December, I did a detailed analysis for getting data into Vertica from MySQL using Tungsten Replicator, all within the Kodiak MemCloud.

I got some good numbers towards the end – 1.9 million rows/minute into Vertica. I did this using a standard replicator deployment, plus some tweaks to the Vertica environment. In particular:

• Integer hash for a partition for both the staging and base tables
• Some tweaks to the queries to ensure that we used the partitions in the most efficient manner
• Optimized the batching within the applier to hit the right numbers for the transaction counts

That last one is a bit of a cheat because in a real-world situation it’s much harder to be able to identify those transaction sizes and row counts, but for testing, we’re trying to get the best performance!

Next what I wanted to do was set up some bare metal and AWS servers that were of an …

Percona Monitoring and Management (PMM) is a free and open-source platform for managing and monitoring MySQL® and MongoDB® performance. You can run PMM in your own environment for maximum security and reliability. It provides thorough time-based analysis for MySQL® and MongoDB® servers to ensure that your data works as efficiently as possible.

In PMM Release 1.11.0, we deliver the following changes:

• Configurable MySQL Slow Log Rotation – enable or disable rotation, and specify how many files to keep on disk
• Predictable Graphs – we’ve updated our formulas to use aggregation functions over time for more reliable graphs
• MySQL Exporter Parsing of my.cnf – we’ve improved how we read my.cnf
• Annotation improvements – passing …

Happy Birthday MySQL  ! Turned 23 today !

There was an interesting question on Stackoverflow.com on extracting values from a JSON data type column in a MySQL database.  What caught my eye was the the keys for the key/value pairs were numeric. In particular the author of the question only wanted values for the key named 74.  The sample data was fairly simple.

{ "70" : "Apple", "71" : "Peach", "74" : "Kiwi" }

I thought SELECT JSON_EXTRACT(column, '$.74') FROM table; should work but it did not. There was a complaint about an invalid path expression.

It turns out that you need to make the second argument in the function '$."74"' or SELECT JSON_EXTRACT(column,'$."74"') FROM table; 

File this under something to remember for later. :-)

Percona announces the release of Percona Toolkit 3.0.10 on May 22, 2018.

Percona Toolkit is a collection of advanced open source command-line tools, developed and used by the Percona technical staff, that are engineered to perform a variety of MySQL®, MongoDB® and system tasks that are too difficult or complex to perform manually. With over 1,000,000 downloads, Percona Toolkit supports Percona Server for MySQL, MySQL®, MariaDB®, Percona Server for MongoDB and MongoDB.

Percona Toolkit, like all Percona software, is free and open source. You can download packages  …