Would you play a multiplayer game if you discovered other people are cheating? According to a survey by Irdeto, 60% of online games were negatively impacted by cheaters, and 77% of players said they would stop playing a multiplayer game if they think opponents are cheating. Player churn grows as cheating grows.

Stopping this is therefore essential if you want to build and develop your community, which is essential to success for today’s gaming companies. This session at Percona Live ONLINE was presented by Yahav Biran, specialist solutions architect, gaming technologies at Amazon Web Services, and Yoav Eilat, Senior Product Manager at Amazon Web Services, presented a talk and demonstration about anti-cheating tools in gaming based on using automation and machine learning (ML).

Yoav notes that while people might think of ML in terms of text or images, but: …

In this webinar, Sveta Smirnova, MySQL Engineer at Percona, will uncover nuances of Percona XtraDB Cluster (PXC) schema upgrades and point out details you need to give extra attention to.

Percona XtraDB Cluster (PXC) is a 100% synchronized cluster in regards to DML operations. It is ensured by the optimistic locking model and ability to rollback transaction which cannot be applied on all nodes. However, DDL operations are not transactional in MySQL. This adds complexity when you need to change the schema of the database. Changes made by DDL may affect the results of the queries. Therefore all modifications must replicate on all nodes prior to next data access. For operations that run momentarily, it can be easily achieved, but schema changes may take hours to apply. Therefore in addition to the safest synchronous blocking schema upgrade method: TOI, – PXC supports more relaxed, though not safe, method RSU. RSU: Rolling Schema Upgrade is …

Just recently, I have been asked to look into what a Disaster Recovery site for InnoDB Cluster would look like.

If you’re reading this, then I assume you’re familiar with what MySQL InnoDB Cluster is, and how it is configured, components, etc.

Reminder: InnoDB Cluster (Group Replication, Shell & Router) in version 8.0 has had serious improvements from 5.7. Please try it out.

So, given that, and given that we want to consider how best to fulfill the need, i.e. create a DR site for our InnoDB Cluster, let’s get started.

Basically I’ll be looking at the following scenario:

InnoDB Cluster Source site with a Group Replication Disaster Recovery Site.

Now, just before we get into the nitty-gritty, here’s the scope.

Life is already hard enough, so we want as much automated as possible, so, yes, InnoDB Cluster gets some of that done, but there are other parts we will still have to …

Your favourite monitoring software throws an alert or sends an email after it finds the following in the mysql error log: InnoDB: page [page id: space=8858, page number=206777] (95 records, index id 29361) How do you find which index is … Continue reading →

MySQL Backup Strategies – What you should know before considering MySQL DR solutions ? 

MySQL powers all the major internet properties, Which include Google, Facebook, Twitter, LinkedIn, Uber etc. So how do we plan for MySQL disaster recovery and what are the most common MySQL DR tools used today for building highly reliable database infrastructure operations ? There can be several reasons for a MySQL database outage: hardware failure, power outage, human error, natural disaster etc. We may not be able prevent all the disaster from happening but investing on a robust disaster recovery plan is very important for building fault-tolerant database infrastructure operations on MySQL.  Every MySQL DBA is accountable for developing a disaster recovery plan addressing data sensitivity, data loss tolerance and data security. Functionally you have several database backup strategies available with MySQL:

• Full backup – Full …

People approach Continuent for many reasons, including:

• MySQL Continuous Operations: their business is using MySQL for business-critical applications that require zero downtime, including for maintenance updates
• MySQL Performance: their application performance and user experience are suffering due to a faltering MySQL backend

Tags:  mysql clustering MySQL tungsten replicator ami

Even though Percona Monitoring and Management 2 (PMM) comes with a lot of dashboards and metrics out of the box, sometimes we need to extend the default metrics by running custom MySQL queries.

For example, suppose you want to have information about cached indexes from Innodb tables from innodb_cached_indexes table. That metric is not being captured by any default dashboard, but it is possible to extend PMM and make it capture the result of custom queries.

Getting Started With Custom Queries

Custom queries can be added to mysqld_exporter by adding them to the appropriate config file in /usr/local/percona/pmm2/collectors/custom-queries/mysql. There are three subdirectories inside it: high-resolution, low-resolution, and medium-resolution. PMM allows …

The Southeast Linuxfest will be virtual this year and I am happy to announce that I have two sessions.


Friday, June 12th 
(All times US EDT, GMT-4.  Time between talks is used for Q&A, discussion, wanton displays of old hardware and boxed Linux software hoarding, and breaks.)
6:00 - 7:00 PM:   Dave Stokes - MySQL JSON Document Validation
JSON is a popular data interchange format and MySQL has had a native JSON Data Type for a few years.  But until recently there was no way to make sure JSON data included required fields, data type checking, or range checking.  But thanks to the JSON-Schema.org's designs, there is now a way to ensure that the JSON data going into your MySQL Database is correct.  You will learn how to use constraint checks with the new JSON validation …

Quarkus is a supersonic Java framework built with a cloud-native first mentality. It’s blazing fast in startup and has a much smaller memory footprint compared to Spring Boot. Quarkus is [...]

The post Use MySQL in Quarkus with Hibernate and Panache appeared first on Geeky Hacker.

Our latest Solution Brief uses our relationship with Patreon to detail the ways that Percona services work together to provide customers with a complete database infrastructure solution.

Last year Patreon enlisted Percona’s help with their MySQL databases. Utilizing the full range of Percona Services (Managed Services, Support, Consulting, and Training) has allowed Patreon to make the most of their database infrastructure.

Percona worked with …