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This Week in Data with Colin Charles 48: Coinbase Powered by MongoDB and Prometheus Graduates in the CNCF

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

The call for submitting a talk to Percona Live Europe 2018 is closing today, and while there may be a short extension, have you already got your talk submitted? I suggest doing so ASAP!

I’m sure many of you have heard of cryptocurrencies, the blockchain, and so on. But how many of you realiize that Coinbase, an application that handles cryptocurrency trades, matching book orders, and more, is powered by MongoDB? With the hype and growth in interest in late 2017, Coinbase has had to scale. They gave an excellent talk at MongoDB World, titled MongoDB & Crypto Mania (the video is worth a watch), and they’ve also written a blog post, …

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This Week in Data with Colin Charles 47: MySQL 8.0.12 and It’s Time To Submit!

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

Don’t wait, submit a talk for Percona Live Europe 2018 to be held in Frankfurt 5-7 November 2018. The call for proposals is ending soon, there is a committee being created, and it is a great conference to speak at, with a new city to boot!

Releases

  • A big release, MySQL 8.0.12, with INSTANT ADD COLUMN support, BLOB optimisations, changes around replication, the query rewrite plugin and lots more. Naturally this also means the connectors get bumped up to the 8.0.12, including a nice new …
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This Week in Data with Colin Charles 46: OSCON Recap, Google Site Reliability Workbook

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

OSCON happened last week and was incredible. It is true there was less of a database focus, and a lot more topics covered. In fact, you’d have found it hard to find database content. There was plenty of interesting content around AI/ML, cloud, SRE, blockchain and more. As a speaker, the 40-minute sessions that included a Q and A session was quite compact (I felt it was a little too short, and many speakers sped up towards the end). I guess it will make for more blog content.

The conference’s open source ethos is still extremely strong, and the keynotes exemplified that. It was not just the 20th anniversary of OSCON, but also the 20th anniversary of the …

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Auditing MariaDB for Secured Database Infrastructure Operations

When you are building Database Infrastructure for an data sensitive business (like financial services, digital commerce, advertising media solutions, healthcare etc. ) governed by compliance and policies, You are expected to maintain the audit log of the transactions to investigate, if you ever suspect something unacceptable (i.e., user updating / deleting data) happening to your database . MariaDB provides Audit Plugin (MariaDB started including by default the Audit Plugin from versions 10.0.10 and 5.5.37, and it can be installed in any version from MariaDB 5.5.20.) to log the server activity, Although the MariaDB Audit Plugin has some unique features available only for MariaDB, it can be used also with MySQL. MariaDB Audit Plugin log the details like who connected to server (i.e., username and host), what queries were executed, the tables accessed and server variables changed. This information is retained in a rotating log file or sent to …

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Webinar Wed 7/18: MariaDB 10.3 vs. MySQL 8.0

Please join Percona’s Chief Evangelist, Colin Charles as he presents as he presents MariaDB 10.3 vs. MySQL 8.0 on Wednesday, July 18th, 2018, at 9:00 AM PDT (UTC-7) / 12:00 PM EDT (UTC-4).

Register Now

 

Technical considerations

Are they syntactically similar? Where do these two databases differ? Why would I use one over the other?

MariaDB 10.3 is on the path of gradually diverging from MySQL 8.0. One obvious example is the internal data dictionary currently under development for MySQL 8.0. This is a major change to the way metadata is stored and used within the server, and MariaDB doesn’t have an equivalent feature. Implementing this feature could mark the end of datafile-level compatibility between …

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This Week in Data with Colin Charles 45: OSCON and Percona Live Europe 2018 Call for Papers

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

Hello again after the hiatus last week. I’m en route to Portland for OSCON, and am very excited as it is the conference’s 20th anniversary! I hope to see some of you at my talk on July 19.

On July 18, join me for a webinar: MariaDB 10.3 vs. MySQL 8.0 at 9:00 AM PDT (UTC-7) / 12:00 PM EDT (UTC-4). I’m also feverishly working on an update to MySQL vs. MariaDB: Reality Check, now that both MySQL 8.0 and MariaDB Server 10.3 are generally available.

Rather important: …

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Porting this Oracle MySQL feature to MariaDB would be great ;-)

Oracle has done a great technical work with MySQL. Specifically a nice job has been done around security. There is one useful feature that exists in Oracle MySQL and that currently does not exist in MariaDB. Oracle MySQL offers the possibility from within the server to generate asymetric key pairs. It is then possible use [...]

MariaDB Galera cluster and GTID

In MariaDB 10.2.12, these two don’t yet work together. GTID = Global Transaction ID.  In the master-slave asynchronous replication realm, this means that you can reconnect a slave to another server (change its master) and it’ll happily continue replicating from the correct point.  No more fussing with filenames and offsets (which of course will both differ on different machines).

So in concept the GTIID is “globally” unique – that means it’s consistent across an entire infra: a binlogged write transaction will have the same GTID no matter on which machine you look at it.

  • OK: if you are transitioning from async replication to Galera cluster, and have a cluster as slave of the old infra, then GTID will work fine.
  • PROBLEM: if you want to run an async slave in a Galera cluster, GTID will currently not work. At least not reliably.

The overview issue is …

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Problems of Oracle's MySQL as an Open Source Product

In my previous summary blog post I listed 5 problems I see with the way Oracle handles MySQL server development. The first of them was that "Oracle does not develop MySQL server in a true open source way" and this is actually what I started my draft of that entire blog post with. Now it's time to get into details, as so far there was mostly fun around this and statements that MariaDB also could do better in the related Twitter discussion I had.

So, let me explain what forces me to think that Oracle is treating MySQL somewhat wrong for the open source product.

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Percona Toolkit 3.0.11 Is Now Available

Percona announces the release of Percona Toolkit 3.0.11 on July 6, 2018.

Percona Toolkit is a collection of advanced open source command-line tools, developed and used by the Percona technical staff, that are engineered to perform a variety of MySQL®, MongoDB® and system tasks that are too difficult or complex to perform manually. With over 1,000,000 downloads, Percona Toolkit supports Percona Server for MySQL, MySQL®, MariaDB®, Percona Server for MongoDB and MongoDB.

Percona Toolkit, like all Percona software, is free and open source. You can download packages  …

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