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The use of Iptables ClusterIP target as a load balancer for PXC, PRM, MHA and NDB

 | January 10, 2014 |  Posted In: High-availability, MySQL, NDB cluster, Percona replication manager, XtraDB Cluster

Most technologies achieving high-availability for MySQL need a load-balancer to spread the client connections to a valid database host, even the Tungsten special connector can be seen as a sophisticated load-balancer. People often use hardware load balancer or software solution like haproxy. In both cases, in order to avoid having a single point of failure, […]

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Percona XtraDB Cluster/ Galera with Percona Monitoring Plugins

 | October 31, 2013 |  Posted In: MySQL, Percona Monitoring Plugins, Percona XtraDB Cluster, XtraDB Cluster

The Percona Monitoring Plugins (PMP) provide some free tools to make it easier to monitor PXC/Galera nodes.  Monitoring broadly falls into two categories: alerting and historical graphing, and the plugins support Nagios and Cacti, respectively, for those purposes. Graphing An update to the PMP this summer (thanks to our Remote DBA team for supporting this!) added a Galera-specific host template that […]

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MySQL Webinar: Percona XtraDB Cluster Operations, June 26

 | June 18, 2013 |  Posted In: Events and Announcements, Percona XtraDB Cluster, XtraDB Cluster

Percona XtraDB Cluster (PXC) was released over a year ago and since then there has been tremendous interest and adoption.  There’s plenty of talks that explain the fundamentals of PXC, but we’re starting to reach a threshold where it’s easier to find folks with PXC in production and such the need for more advanced talks […]

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Multicast replication in Percona XtraDB Cluster (PXC) and Galera

 | June 5, 2013 |  Posted In: Percona Software, Percona XtraDB Cluster, XtraDB Cluster

Bandwidth multiplication and synchronous clusters I’ve seen a lot of people setting up clusters with 3-6+ nodes on 1 Gbps networks.  1 Gbps seems like a lot, doesn’t it?  Actually, maybe not as much as you think.  While the theoretical limit of 1Gbps is actually 120MBps, I start to get nervous around 100MBps. By default […]

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