For some time, there have been several requests to the MySQL dev team to add dedicated support for an admin to connect to the MySQL server.  We received a contribution from Facebook, bug#90395 ,  to add this functionality, which we then paired with more requirements, implemented in WL#12138 and delivered in MySQL Server 8.0.14.…

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Today is World Backup Day, so I thought I would use the opportunity to discuss some best practices and general considerations regarding backing up MySQL instances. While I focus on MySQL, several of these tips apply to backups in general.

Backup your data

Before heading into the gory details, let’s first take a look at the best practices at a high level:

• Make sure you can restore your backups:
  • Document and script the restore procedures. Do you know the steps required to restore a full backup – or a single table?
  • Keep copies of the backups off-site. Do you have a copy of your backup if the data center becomes unavailable for example due to a fire?
  • Validate your …

In case you missed the Multimaster webinar recorded live on Thursday, March 28th, 2019:

Learn how NewVoiceMedia built a global, multi-region MySQL cloud back-end to support a high-volume cloud contact center. 

Agenda:

Find out how to deploy Multimaster MySQL / MariaDB / Percona with the following design criteria:

• Geographically distributed, low-latency data
• Fast local response times for read & write traffic
• Full ACID compliance – atomic operations, guaranteed consistency, isolation, and durability
• Local rapid-failover, automated high availability

Speaker:

Chris Parker

Director of Professional Services – EMEA/APAC, is based in the UK, and has over 20 years …

So we have seen until now different built-in ways  to easily collect diagnostics information on MySQL server at different level (Instance/Thread/Statement)  :

• MySQL overall server status report
• MySQL tracing session/thread activity
• MySQL statement level tracing

But what about analyzing database load ? Does MySQL has a build-in way to display Active Session History ?

MySQL already offer an easy way to display currently active session using the “sys”.”session” view for example but sadly there is no build-in active …

So over the years, we all learn more and more about what we like and use often in MySQL. 

Currently, I step in and out of a robust about of different systems. I love it being able to see how different companies use MySQL.  I also see several aspect and settings that often get missed. So here are a few things I think should always be set and they not impact your MySQL database. 

At a high level:

• >Move the Slow log to a table 
• Set report_host_name 
• Set master & slaves to use tables
• Turn off log_queries_not_using_indexes until needed 
• Side note -- USE  ALGORITHM=INPLACE
• Side note -- USE mysql_config_editor
• Side note -- USE  mysql_upgrade  --upgrade-system-tables

Move the Slow log to a …

Today I started to check ripple the new MySQL binlog server. I don’t want to give yet any feedback neither I want to answer THE question: Is this the Binlog Server we were all waiting for ?

But I had some difficulties to build it on my test machines (rpm based as mostly everybody knows). I think this might be a limitation for people wanting to evaluate it. Therefor, with the help of Daniël van Eeden, I made a rpm that will facilitate the installation on your system.

The rpm is made for EL7 compatible Linux distributions and includes libssl and libcrypto libraries in version 1.1

mysql-ripple-0.3-1.el7.x86_64 …

We started hosting Percona University a few years back with the aim of sharing knowledge with the open source database community. The events are held in cities across the world. The next Percona University days will visiting Uruguay, Argentina, and Brazil, in a lightning tour at the end of April.

• Montevideo, Tuesday, April 23 2019 from 8.30am to 6.30pm
• Buenos Aires, Thursday, April 25 2019 from 1.30pm to 10.3pm
• São Paulo, Saturday, April 27 2019 from 9.30am to 7.30pm

What is Percona University?

It is a technical …

Why migrating to MySQL 8.0 ?

MySQL 8.0 brings a lot of new features. These features make MySQL database much more secure (like new authentication, secure password policies and management, …) and fault tolerant (new data dictionary), more powerful (new redo log design, less contention, extreme scale out of InnoDB, …), better operation management (SQL Roles, instant add columns), many (but really many!) replication enhancements and native group replication… and finally many cool stuff like the new Document Store, the new MySQL Shell and MySQL InnoDB Cluster that you should already know if you follow this blog (see these TOP 10 for features for developers and this TOP 10 for DBAs & OPS).

Not anymore a drop in replacement !

We …

Before the implementation of WL#11652 in MySQL 8.0.13 , the MySQL server listened to incoming connection requests either on one or all configured network interfaces.

However, in case the underlying platform supports several network interfaces it might be useful to allocate more than one network interface for specific use, and therefore allow specifying bind-address for several network interfaces.…

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What's a good natural key? This is a very difficult question for most entities when you design your schema. In some rare cases, there seems to be an "obvious" candidate, such as a variety of ISO standards, including: ISO 639 language codesISO 3166 country codesISO 4217 currency codes But even in those cases, there might … Continue reading The Cost of Useless Surrogate Keys in Relationship Tables →