Understanding AWS RDS Aurora Capabilities

The RDS Aurora MySQL/PostgreSQL capabilities of AWS extend the High Availability (HA) capabilities of RDS read replicas and Multi-AZ. In this presentation I discuss the different capabilities and HA configurations with RDS Aurora including:

  • RDS Aurora Cluster single instance
    • RDS Aurora Cluster multiple instances (writer + 1 or more readers)
      • RDS Aurora Cluster multi-master
        • RDS Aurora Global Cluster

          • RDS Aurora Cluster options for multi-regions

          Each option has its relative merits and limitations. Each will depend on your business requirements, global needs and budget.

Tagged with: Amazon Web Services (AWS) Cloud Computing Events MySQL Percona Live 2021 RDS RDS Aurora

Extending MySQL Capabilities with UDFs, Plugins and Components

Extending MySQL Capabilities with UDFs, Plugins and Components

MySQL offers three different approaches to extending the SQL capabilities with the default product you download and install. These are: User Defined Function (UDF) MySQL Manual MySQL Plugin MySQL Manual MySQL Component MySQL Manual For the purposes of this post I will be using the current LTS version MySQL 8.

Producing One-Sample Z-Test statistics with SQL

Producing One-Sample Z-Test statistics with SQL

The one-sample Z-test determines whether a sample mean differs significantly from a known population mean when the population standard deviation is also known. It is the appropriate test when the population parameters are established — quality control benchmarks, national averages, long-run process measurements — and you want to evaluate whether a new sample is consistent with them.

Switching to JSON Error Logging in MySQL

Switching to JSON Error Logging in MySQL

You no longer need to manually parse the MySQL Error log via scripting and RegEx pattern matching. Using the component_log_sink_json component you can obtain JSON error logging for easier parsing.