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Displaying posts with tag: MySQL Cluster CGE (reset)
MySQL Cluster 7.2.7 released

The binary version for MySQL Cluster 7.2.7 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.7 (compared to 7.2.6) are available from the 7.2.7 Change log.

MySQL Cluster : Delivering Breakthrough Performance (upcoming webinar)

MySQL Cluster partitioning key

I’ll be presenting a webinar covering MySQL Cluster performance on Thursday, July 26. As always, the webinar will be free but you’ll need to register here – you’ll then also receive a link to the charts and a recording of the session after the event.

The replay of this webinar is now available from here.

Here’s the agenda (hoping that I can squeeze it all in!):

  • Introduction to MySQL Cluster
  • Where does MySQL Cluster fit?
  • Benchmarks:
    • ANALYZE TABLE
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Upcoming conferences to learn more about MySQL Cluster & Replication

There are a couple of conferences coming up where you can expect to learn about the latest developments in MySQL Cluster and MySQL Replication (as well as what else is happening in MySQL 5.6).

The first is the Oracle MySQL Innovation Day which is being held in Oracle HQ at Redwood Shores. This is an all-day event on 5th June – unfortunately I won’t be able to attend this one but there will be lots of great Cluster and replication sessions. If you can’t make it out to California then there will be a live Webcast. You can register here to attend in person or join the webcast.

The second is MySQL Connect – this runs the weekend before Oracle OpenWorld in San Francisco; it’s not  until 29th September but it’s worth …

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On-line add-node with MCM; a more complex example

I’ve previously provided an example of using MySQL Cluster Manager to add nodes to a running MySQL Cluster deployment but I’ve since received a number of questions around how to do this in more complex circumstances (for example when ending up with more than 1 MySQL Server on a single host where each mysqld process should use a different port). The purpose of this post is to work through one of these more complex scenarios.

The starting point is an existing cluster made up of 3 hosts with the nodes (processes) as described in this MCM report:

mcm> SHOW STATUS -r mycluster;
+--------+----------+-------------------------------+---------+-----------+---------+
| NodeId | Process  | Host                          | Status …
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MySQL Cluster 7.2.5 available for download

The binary version for MySQL Cluster 7.2.5 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.5 (compared to 7.2.4) will appear in the 7.2.5 Change log.

MySQL Scaling breakfast seminar – London, April 25th

I’ll be presenting on/demoing MySQL Cluster 7.2 at this free breakfast seminar in Oracle’s London office on 25th April – starting with coffee at 9:00 and ending with lunch at 13:00 (quite a generous take on “breakfast”!). Space is limited and so if you would like to attend then register early here.

As well as MySQL Cluster there will be …

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MySQL Cluster 7.1.19 is available to download

The binary version for MySQL Cluster 7.1.19 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) or https://support.oracle.com/ (commercial version)

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.1.19 (compared to 7.1.18) will appear in the 7.1.19 Change log.

Enhanced conflict resolution with MySQL Cluster active-active replication

Detecting conflicts

Part of the latest MySQL Cluster Development Milestone Release (MySQL Cluster 7.2.1 – select the “Development Release” tab at http://dev.mysql.com/downloads/cluster/#downloads) is a couple of enhancements to the conflict detection and resolution mechanism for active-active (multi-master) replication. While MySQL Cluster has had conflict detection for years it has now been made much more complete and a lot easier to use:

  • No changes needed to the application schema
  • Entire conflicting transaction is rolled back together with any dependent transactions

The focus of this post will be to step through how to use this feature – while it will also attempt to explain how it works at …

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MySQL Cluster material from Oracle Open World 2011

For those people that weren’t able to attend the MySQL Cluster demo or sessions at this year’s Oracle Open World (or even for those that did) and would like copies of the material, links are provided here.

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My sessions at Oracle OpenWorld 2011

Slight adjustment to some of the times + added the MySQL community reception (read  vodka!). Oracle OpenWorld (San Francisco) starts on Sunday 2nd October (including some MySQL community sessions) through Thursday 6th October. MySQL has a lot of sessions this year as well as 3 demo booths.

This year I’m going to be involved in 3 public sessions – if you’re attending, please come along and say hello!

  • Getting the Most Out of MySQL on Windows – 13:15 on Tuesday (Marriott Marquis – Golden Gate C2)
  • Building Highly Available and Scalable Real-Time Services with MySQL Cluster – 10:15 on Wednesday (Marriott Marquis – Golden Gate C1)
  • NoSQL Access to MySQL: The Best of Both Worlds – 11:45 on Wednesday (Marriott Marquis – Golden Gate C1)
  • MySQL Community Reception – 19:00 …
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