…: What is the reason that I recommended DRBD be used only on physical hardware and not on virtual machines? A: I covered…, DRBD can end up in a split-brain situation. Typically DRBD is run in combination with heartbeat or pacemaker or something similar, and if one of the servers in the DRBD pair is…
Post: Finding your MySQL High-Availability solution – Replication
November 13, 2009 By 6 Comments
… link between the servers. Replication often break for various reasons and while replication is broken, there is no High-Availability. Also…. First, if the application is well designed and has specific database handles for read and write operations, this HA solution can scales… blog post, I’ll present another HA solution build around Heartbeat and DRBD.
Post: Percona welcomes Yves Trudeau and Fernando Ipar
October 8, 2009 By 6 Comments
… the world. An expert on all things High Availability, including DRBD and Heartbeat. Many years of experience with Huge Data. Half of the… Captain[1]. Fernando specializes in MySQL, GNU/Linux, systems administration, and high availability. Fernando has been involved in computer programming since…. Fernando brightens our IRC channel with his helpful and cheerful presence! Welcome, Yves and Fernando! [1] Shift Support Captain is kind of…
Post: Finding your MySQL High-Availability solution – The questions
October 16, 2009 By 36 Comments
… with MMM manager – Heartbeat/SAN – Heartbeat/DRBD – NDB Cluster These technologies are by far, not a one size fits all and many deployments use… Sysadmin skills Heartbeat/DRBD High, Good MySQL DBA + strong Sysadmin skills NDB Cluster Very high, Specific NDB knowledge, strom MySQL skills and strong…
Comment: Finding your MySQL High-Availability solution – The questions
October 19, 2009 By 36 Comments
… lot with Heartbeat/DRBD and NDB cluster. @Gerry: I have seen cluster that have been up for more than a years and I maintain… data, ruling out replication, and needs HA and sharding. The only solution there is to have multiple Heartbeat/DRBD pairs, that’s a lot… have covered by Heartbeat/DRBD or NDB Cluster. @Todd: Replication are two different ways of replicating data, from my experience, DRBD is more…
Comment: Is DRBD the right choice for me?
July 8, 2009 By 18 Comments
Hi Morgan, Of course, a DRBD/Heartbeat setup is not for every use case. Like you mentioned, … log files, usually 2 files of around 100 MB. With DRBD/Heartbeat, once it is setup, you know what the recovery time…-Master rely on replication and replication as no built-in self-healing, it is my opinion that a Heartbeat/DRBD HA solution is…
Comment: Is DRBD the right choice for me?
July 8, 2009 By 18 Comments
…-Master rely on replication and replication as no built-in self-healing, it is my opinion that a Heartbeat/DRBD HA solution is… in functions of DRBD are (online device verification, replication event checksums, fast resync after a node has been offline), and I wish… emulate most of what you need with tools like maatkit and mmm.
Post: Tutorial Insights for Percona Live, London
August 24, 2011 By Leave a Comment
… the Pacemaker! will talk about MySQL High Availability using DRBD and Pacemaker (Heartbeat) which have been a high availability solution of choice for… accomplished and experienced person you can find to talk about High Availability with DRBD, and with his experience both as Senior Consultant and Instructor…
Post: Finding your MySQL High-Availability solution - The definitions
October 9, 2009 By 10 Comments
… years using Heartbeat, DRBD and NDB cluster and I’ll probably be doing the same at Percona. I have built my first DRBD based… of technical solutions, good management practices covering monitoring, alerting, security and documentation are also needed to insure a successful solution. In…
Comment: Finding your MySQL High-Availability solution – The questions
October 20, 2009 By 36 Comments
…cause of downtime for most sites. Solutions like DRBD or SAN that implement shared disk semantics …of your database, your admin procedures (e.g., heartbeat w/ VIP for failover vs. manual procedure … many of them. 3.) Failures. Understanding types and consequences of failures is important. If NDB …
