\o/ thank you !

RDS is a Database as a Service (DBaaS) that automatically configures and maintains your databases in the AWS cloud. The user has limited power over specific configurations in comparison to running MySQL directly on Elastic Compute Cloud (EC2). But RDS is a convenient service, as long as you can live with the instances and configurations that it offers.

Amazon RDS currently supports various MySQL and MariaDB versions as well as the, MySQL-compatible Amazon Aurora DB engine. It does support replication, but as you may expect from a predefined web console, there are some limitations.

Amazon RDS Services

There are some tradeoffs when using RDS. These may not only affect the way you manage and provision your database instances, but also key things like performance, security, and high availability.

In this blog, we will take a look at the differences between using RDS and running MySQL on EC2, with focus on …

Since MySQL 5.7.5, we have been able to resize dynamically the InnoDB Buffer Pool. This new feature also introduced a new variable — innodb_buffer_pool_chunk_size — which defines the chunk size by which the buffer pool is enlarged or reduced. This variable is not dynamic and if it is incorrectly configured, could lead to undesired situations.

Let’s see first how innodb_buffer_pool_size , innodb_buffer_pool_instances  and innodb_buffer_pool_chunk_size interact:

The buffer pool can hold several instances and each instance is divided into chunks. There is some information that we need to take into account: the number of instances can go from 1 to 64 and the total amount of chunks should not exceed 1000.

So, for a server with 3GB RAM, a buffer pool of 2GB with 8 instances and chunks at default value (128MB) we are going to get 2 chunks per instance:

This means that there will be 16 chunks.

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We are really excited about MySQL 8.0 new features (https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html) and our consultants spend several hours weekly, testing new features and doing research on how best we can create value for our customers from having those in production. Being an pure-play MySQL consulting, support and remote DBA services company, We are fully accountable for our customer database infrastructure operations performance, scalability, high availability and reliability.  As we are aggressive about gaining maximum results from MySQL 8 investments made by our customers, We are equally conservative (our customer data reliability is critical for us !)  on adopting new features, until we are fully confident after several rounds of testing (at different scales on multiple platforms) and technical review (we engage both internal and …

Including setting up Percona XtraDB Cluster with ProxySQL and PMM

Please join Percona’s Architect, Tibi Köröcz as he presents Percona XtraDB Cluster 5.7 Tutorial Part 2 on Wednesday, June 20th, 2018, at 7:00 am PDT (UTC-7) / 10:00 am EDT (UTC-4).

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Never used Percona XtraDB Cluster before? This is the webinar for you! In this 45-minute webinar, we will introduce you to a fully functional Percona XtraDB Cluster.

This webinar will show you how to install Percona XtraDB Cluster with ProxySQL, and …

As you know, one of the great new feature in MySQL 8.0 is the Document Store. Now with MySQL you can store your JSON documents in collections and manage them using CRUD operations. NoSQL is now part of MySQL ! Instead of a mix of MongoDB and MySQL, now you can eliminate MongoDB and consolidate with MySQL !

This is a historical meeting of NoSQL and SQL in the same database server!

To use MySQL 8.0 as Document Store, you need to have the X plugin installed (by default since 8.0.11). This plugin enables the X DevAPI that offers a modern programming interface. Clients that communicate with a …

The MariaDB Foundation is pleased to announce the availability of MariaDB 10.1.34, the latest stable release in the MariaDB 10.1 series, as well as MariaDB Connector/C 3.0.5, MariaDB Connector/C 2.3.6, MariaDB Connector/J 2.2.5, MariaDB Connector/J 1.7.4, MariaDB Connector/ODBC 3.0.5 and MariaDB Connector/ODBC 2.0.17, the latest stable MariaDB Connector releases. See the release notes and changelogs […]

The post MariaDB 10.1.34 and latest MariaDB Connectors now available appeared first on MariaDB.org.

Please join Percona’s CEO, Peter Zaitsev as he presents MySQL: Scaling and High Availability – Production Experience Over the Last Decade(s) on Tuesday, June 19th, 2018 at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4).

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Percona is known as the MySQL performance experts. With over 4,000 customers, we’ve studied, mastered and executed many different ways of scaling applications. Percona can help ensure your application is highly available. Come learn from our playbook, and leave this …

The Write Ahead Log (WAL) is one of the most important components of a database. All the changes to data files are logged in the WAL (called the redo log in InnoDB). This allows to postpone the moment when the modified pages are flushed to disk, still protecting from data losses.…

Cluster connection pooling
The new MySQL Cluster 7.6 GA supports NDB connection pooling – using multiple NDBAPI connections from a single mysqld to NDB – to allow increased concurrency and throughput.

Cluster connection pooling has been supported in MySQL Cluster for quite a while.

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