In my previous post, I wrote about the new Japanese collation for utf8mb4 introduced in MySQL 8.0.1! This collation (utf8mb4_ja_0900_as_cs) implements accent / case sensitivity for Japanese as defined by CLDR 30.

Today, I am writing about our new utf8mb4_ja_0900_as_cs_ks collation which includes support for kana sensitivity.…

The white paper shares lessons learned from a careful, component level analysis of China Mobile’s 1000-node OpenStack cloud. They uncovered three major issues in the course of this study, all addressed through OpenStack configuration changes. The result: a more stable and performant China Mobile OpenStack cloud and insights into scale bottlenecks and areas for future work.

Read the full story: Analyzing and Tuning China Mobile’s OpenStack Production Cloud white paper below

performance_analysis_and_tuning_in_china_mobiles_openstack_production_cloud_2

In this part of the "quick look" series, I evaluate the performance of DDL operations in Amazon Aurora and vanilla MySQL. I'll use a few examples to demonstrate how fast the DDLs run and what impact they can have on regular workload. I'll also take the Aurora's Fast DDL feature for a spin.

Introduction DDL operations are a well-known source of pain in MySQL-based environments. They are not very fast, they're not fully online (non-blocking), and they're difficult to run on top of regular workload without serious performance degradation. MySQL has not seen much improvement in this area for quite some time, which is we have tools such as pt-online-schema-change, now considered to be an industry standard rather than a workaround.
Amazon Aurora tries to shake things up a little bit with the Fast DDL feature, which (as of this writing) allows you to add a nullable column at the end of a table nearly instantaneously. You can …

MySQL's new NoSQL database is quite a big change for all used to using a SQL speaking relational database. The Document Store makes use of the new MySQL Shell, the new X Protocol, and the new X Devapi to provide a NoSQL document storage service. This provides a way for developers to have a schema-less, NoSQL data store to build services and applications is a quick fashion without having to design a schema, normalize data, develop queries in SQL, or any of the rest of the overhead needed to create a relational databases. Behind the scenes and invisible to the developer is that the schema-less data is stores in a JSON type column in a MySQL instance.

Please note that I am using JavaScript Mode (instead of SQL or Python) for these examples. No special reason.

First Step The new MySQL Shell is a separate install from the server software. Once installed it will provide the ability to use MySQL as a document store. …

In this post we’ll review how MySQL triggers can affect queries.

Contrary to what the documentation states, we can activate triggers even while operating on views:

https://dev.mysql.com/doc/refman/5.7/en/triggers.html

Important: MySQL triggers activate only for changes made to tables by SQL statements. They do not activate for changes in views, nor by changes to tables made by APIs that do not transmit SQL statements to the MySQL server.

Be on the lookout if you use and depend on triggers, since it’s not the case for updatable views! We have reported a documentation bug for this but figured it wouldn’t hurt to mention this as a short blog post, too. The link to the bug in question is here:

We are pleased to announce that MySQL Enterprise Monitor 3.3.4 is now available for download on the My Oracle Support (MOS) web site. This is a maintenance release that includes a few new features and fixes a number of bugs. You can find more information on the contents of this release in the change log.

You will find binaries for the new release on My Oracle Support. Choose the "Patches & Updates" tab, and then choose the "Product or Family (Advanced Search)" side tab in the "Patch Search" portlet.

Important: MySQL Enterprise Monitor (MEM) 3.4 offers many significant improvements over MEM 3.3 and we highly recommend that you consider upgrading. More information on MEM 3.4 is available here:

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We are pleased to announce that MySQL Enterprise Monitor 3.2.8 is now available for download on the My Oracle Support (MOS) web site. This is a maintenance release that includes a few new features and fixes a number of bugs. You can find more information on the contents of this release in the change log.

You will find binaries for the new release on My Oracle Support. Choose the "Patches & Updates" tab, and then choose the "Product or Family (Advanced Search)" side tab in the "Patch Search" portlet.

Important: MySQL Enterprise Monitor (MEM) 3.4 offers many significant improvements over MEM 3.2 and MEM 3.3 and we highly recommend that you consider upgrading. More information on MEM 3.4 is available here:

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In a world moving towards Unicode and UTF-8, a lot of applications still use some one-byte character set. And since one-byte characters usually accepts any byte in the range 0x00-0xFF it often works well to store and retrieve any data in such character strings, e.g.…

Hope you have been following our recent webinars on MySQL, Galera Cluster, AWS monitoring and more.

We are coming up with a webinar series in association with Eric Vanier, a leading MySQL expert consultant. The series will provide a step-by-step process to optimize MySQL database performance.

This webinar series is for everyone who is looking for ways to monitor their MySQL databases, simplify the process to manually analyze queries and achieve faster issue resolution time.

Eric Vanier will focus on key problem areas that are faced by DBAs and Shree will provide a solution-driven demonstration to overcome issues while monitoring the database performance. To make it simple, the series will comprise of three parts:

Part – 1: MySQL Performance Tuning
26 June; 10:00 am Eastern time

Troubleshooting a MySQL …

Hope you have been following our recent webinars on MySQL, Galera Cluster, AWS monitoring and more.

We are coming up with a webinar series in association with Eric Vanier, a leading MySQL expert consultant. The series will provide a step-by-step process to optimize MySQL database performance.

This webinar series is for everyone who is looking for ways to monitor their MySQL databases, simplify the process to manually analyze queries and achieve faster issue resolution time.

Eric Vanier will focus on key problem areas that are faced by DBAs and Shree will provide a solution-driven demonstration to overcome issues while monitoring the database performance. To make it simple, the series will comprise of three parts:

Part – 1: MySQL Performance Tuning
26 June; 10:00 am Eastern time

Troubleshooting a MySQL …