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Displaying posts with tag: rds aurora (reset)
SELECT 1

If you have worked with an RDBMS for some time, you will likely have come across the statement SELECT 1.

However, rarely is it correctly explained to engineers what the origin of SELECT 1 is, and why it’s useless and wasteful? A google search is not going to give you the response you would hope, these ranked responses are just as useless as the statement itself.

Bloat

Seeing a SELECT 1 confirms two things. First you are using a generic ORM framework, quote, and second, you have never optimized your SQL traffic patterns.

“Frameworks generally suck.
They CLAIM to improve the speed of development and abstract the need to know SQL.
The REALITY is the undocumented cost to sub-optimal performance, especially with data persistence.”

Connection Pooling

SELECT 1 comes from …

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Upgrading to AWS Aurora MySQL 8

With Aurora MySQL 8 now generally available to all, you may want to consider the plan for an upgrade path if you would like to take advantage of the new features for your application, for example, Common Table Expressions (CTE). This new major release has a much improved and streamlined upgrade progress from Aurora MySQL 5.7.

This tutorial will provide all the steps to allow you to try out setting up an Aurora cluster and performing an upgrade without the impact on your existing AWS environment. The two pre-requisites to getting started are:

  • An AWS account. The Free 1 year AWS account provides many of the services used in these tutorials at no or little cost.
  • The awscli. See …
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AWS Aurora MySQL 8 is now generally available

AWS has just announced the general availability of Aurora MySQL 8 compatibility (known as Aurora Version 3). This is long awaited addition to RDS MySQL 8 and provides many of the new features that can be found in the open-source MySQL 8 community version.

For those unfamiliar with Amazon Aurora my Understanding AWS RDS Aurora Capabilities presentation from Percona Live 2021 provides a great introduction of the benefits of this managed service.

There is a lot to digest and the …

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RDS/Aurora OS monitoring with Monyog v8.1.0

With this Monyog release, we will provide monitoring capabilities for RDS/Aurora OS metrics along with an emphasis on the User Experience in several respects including a number of GUI design details. Additionally, the release adds a number of bug fixes and implements a number of user requests.

Changes as compared to Monyog MySQL Monitor 8.0.4 include:

Features:

  • It is now possible to get OS metrics from Amazon RDS/Aurora (but not Azure, where interface for same is disabled).
  • Added an option to generate a token in Monyog to be used with the MONyog API as an alternative to Monyog user and password.
  • Added an option to define a “seconds_behind_master” setting in Replication page determining if the slave should be considered in sync or not. On some environments, slave will rarely be fully in sync and in such cases, the alerting was not really useful before. …
[Read more]
RDS/Aurora OS monitoring with Monyog v8.1.0

With this Monyog release, we will provide monitoring capabilities for RDS/Aurora OS metrics along with an emphasis on the User Experience in several respects including a number of GUI design details. Additionally, the release adds a number of bug fixes and implements a number of user requests.

Changes as compared to Monyog MySQL Monitor 8.0.4 include:

Features:

  • It is now possible to get OS metrics from Amazon RDS/Aurora (but not Azure, where interface for same is disabled).
  • Added an option to generate a token in Monyog to be used with the MONyog API as an alternative to Monyog user and password.
  • Added an option to define a “seconds_behind_master” setting in Replication page determining if the slave should be considered in sync or not. On some environments, slave will rarely be fully in sync and in such cases, the alerting was not really useful before. …
[Read more]
Showing entries 1 to 5