FromDual holds its annual company meeting this year in Leoforos Vravronos near Athens (20 km outside) in Greece.

We are happy to invite everybody interested in MySQL technologies (MySQL, Percona Cluster, MariaDB, Galera Cluster, etc.) to participate Wednesday evening October 9th at the Mare Nostrum Hotel in Leoforos Vravronos for exchanging ideas about MySQL.

Meeting at 17:00 in the hotel lobby.

• Presentation about Xtrabackup (25') and 5' Questions and Answers (Abdel-Mawla Gharieb, Support Engineer at FromDual)
• Presentation of a MySQL community member (25') and 5' Questions and Answers
• Break 15 min
• Presentation about Galera Cluster (25') and 5' Questions and Answers (Oli Sennhauser, CTO of FromDual))
• Presentation of a MySQL community member or discussion and questions about MySQL …

Percona’s development teams are always delighted to hear about the many ways that engineers and operations teams use our open source software.

Companies say they value the enterprise-grade features and high performance that Percona Server delivers for free and use the software to power critical business applications, hot new apps, and even a growing web host.

We’d love to hear from you. If you use Percona Server or our other software in a production environment, share a quick summary and we’ll …

Tablogs are the blogs written, read, and managed on tablets. They are not only growing in numbers, but the volume of content is also immense. So much ease and so much power through touches ensure that you only spend time creating and learning. This Log Buffer edition appreciates that.

Oracle:

Michael Abbey is taking a quick look at table-level recovery with Database 12c including sample script and output.

Jeremy Schneider has written a brief post to mention an undocumented resource manage limit.

Here’s an important point JL learned from Maria Colgan’s “10 tips” presentation on …

As shown in previous blogs and technical papers about MySQL 5.6, MySQL 5.6 improved scalability from 36 CPU threads sockets all the way to 60 CPU threads on a machine where each socket have 6 cores and 12 CPU threads.

Now that we have released the MySQL 5.7.2 DMR it's interesting to note that we have improved scaling yet one more step. I performed a number of simple test runs to see how our scalability have improved from MySQL 5.6.15 to MySQL 5.7.2 DMR. What the numbers clearly shows is that we have increased our scalability from 60 CPU threads to 72 CPU threads. Where we previously leveled off going from 48 CPU threads to 60 CPU threads, we're now leveling off going from 60 CPU threads to 72 CPU threads and the maximum performance is now found at 72 CPU threads compared to 60 CPU threads in MySQL 5.6.

Here we have the graph for scalability improvements of Sysbench RO.
…

There are two major achievements in the development of MySQL Cluster 7.3 that has led to significant improvements of scalability. The first is the move to MySQL 5.6, this means that we've removed the infamous LOCK_open bottleneck that limited scalability of MySQL Cluster 7.2 which is based on MySQL 5.5 and also all other earlier versions. The other is the improvements of the scalability in the NDB API. For sysbench we are able to process more than three times as many transactions per NDB API connection. In 7.3 it is also possible to do receive processing in separate threads that can be locked to specific CPUs which also enables higher throughput.

When testing MySQL Cluster 7.3 vs MySQL Cluster 7.2 using sysbench one can overcome the limitation of scalability in the NDB API by simply using many more NDB API connections in MySQL Cluster 7.2. However the limitation imposed by LOCK_open cannot be overcome, for sysbench this means that we …

Do you want to learn more about the MariaDB Audit-Plugin? Join Ralf Gebhardt on 5.12.2013 for his live webcast: http://www.skysql.com/why-skysql/webinars/mariadb-audit-plugin-overview

Introduction

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For those looking for extreme real-time performance, high availability and speed, consider MySQL Cluster.

In the MySQL Cluster training, within 3 days, you learn to:

• Describe the different nodes in MySQL Cluster
• Install, start and stop nodes
• Understand and work with configuration files
• Upgrade a cluster
• Explain node failure and understand how restart works
• Configure the cluster for optimal performance

Here is a selection of the events currently scheduled for this live instructor-led course:

Introduction:

MySQL Enterprise Backup(MEB) takes fast, consistent backups of MySQL server data, and helps in restoring the server to source server's data at the time of backup. But most of the times it is as much important to have same source server's state(server configuration like server global variables, plugins), as data. As backups become more frequent, server variables modified, plugins added or removed, it is very difficult to keep track of this changing server states for every backup. MEB 3.9.0 helps user in providing a complete backup so that the restored server can run with exactly the same state as that of the source server at the time of the backup.

MEB 3.9.0 performs full server instance backup,  which, on top of the log …

PDP 11/70 front panel (similar to the 11/45)

Out of curiosity, I’ve developed a USE Method-based performance checklist for Unix 7th Edition on a PDP-11/45, which I’ve been running via a PDP simulator. 7th Edition is from 1979, and was the first Unix with iostat(1M) and pstat(1M), enabling more serious performance analysis from shipped tools. Were I to write a checklist for earlier Unixes, it would contain many more “unknowns”.

I often work on the illumos kernel, a direct descendant of Unix …

I just would like to invite you to discover [Plus]!
Because there is a lot of work behind this blog and it would be a shame not to enjoy it.

I’ve already explained why I do what I do and it’s not the same topic that I want to offer now.
I just would like to give you a chance to explore all the sides of [Plus]

Don’t misunderstand, I don’t worry about me, I do it for you!

What about the social streams?

 
You can follow [Plus] through 2 twitter accounts :
https://twitter.com/cpeintre & https://twitter.com/mysqlplus
The first one is my personal twitter account. The second is exactly the same but without the retweets.

Both of these twitter …