Benchmark in data loss protection
Galera Cluster for MySQL is a true Multimaster Cluster based on synchronous replication. Galera Cluster is an easy-to-use, high-availability solution, which provides high system uptime, no data loss and scalability for future growth.
World’s most advanced features
- Synchronous replication
- Active-active multi-master topology
- Read and write to any cluster node
- Automatic membership control, failed nodes drop from the cluster
- Automatic node joining
- True parallel replication, on row level
- Direct client connections, native MySQL look & feel
- No slave lag
- No lost transactions
- Both read and write scalability
- Smaller client latencies
Use caseRead Master
Traditional MySQL master-slave topology, but with Galera all “slave” nodes are capable masters at all times, it is just the application who treats them as slaves. Galera replication can guarantee 0 slave lag for such installations and due to parallel slave applying, much better throughput for the cluster.
Use caseWrite scalability
Distributing writes across the cluster will harness the CPU power in slave nodes for better use to process client write transactions. Due to the row based replication method, only changes made during a client transaction will be replicated and applying such a transaction in slave applier is much faster than the processing of the original transaction. Therefore the cluster can distribute the heavy client transaction processing across many master nodes and this yields in better write transaction throughput overall.
Use caseWAN Clustering
Synchronous replication works fine over the WAN network. There will be a delay, which is proportional to the network round trip time (RTT), but it only affects the commit operation.
Use caseDisaster Recovery
Disaster recovery is a sub-class of WAN replication. Here one data center is passive and only receives replication events, but does not process any client transactions. Such a remote data center will be up to date at all times and no data loss can happen. During recovery, the spare site is just nominated as primary and application can continue as normal with a minimal fail over delay.
Use caseLatency Eraser
With WAN replication topology, cluster nodes can be located close to cilents.Therefore all read & write operations will be super fast with the local node connection. The RTT related delay will be experienced only at commit time, and even then it can be generally accepted by end user, usually the kill-joy for end user experiences is the slow browsing response time, and read operations are as fast as they possibly can be.
Success story: KPN
The Grip platform combines all cloud services and ensures provisioning, single sign on, business app store and provides corporate customers with a central starting point for all cloud services, as well as a single bill and support desk. Grip is based on Drupal, and for data storage a two data centers, quadruple master Galera Cluster for MySQL is used.
Read more from Acquia.com who integrated Drupal and Galera for KPN Corporate Market
Success story: HP
HP Cloud uses Percona XtraDB Cluster (Galera) in their DNS-as-a-Service application. With the help of Percona consulting services, they built a fully automated Chef based installation procedure and were pleased with the simplicity of managing a Galera Cluster:
“I am very pleased at the architecture we have chosen for the database component of our DNSaaS and encourage anyone who needs a simple MySQL-based HA solution for their application to consider using such a setup.” says Patrick Glabraith of HP
Success story: OpenStack
OpenStack is an open source solution for running a public or private cloud. Many of the OpenStack services use a MySQL database as a storage backend to store their own state. In addition the Red Dwarf OpenStack component provides a Database-as-a-Service solution, again by default based on MySQL. OpenStack is the largest open source cloud community, with Rackspace, HP, Dell, Red Hat, etc… as members.
The OpenStack manual recommends Galera replication to make MySQL instances highly available.
Case studyMercadoLibre chooses Galera Cluster
58 MILLION MERCADOLIBRE CONSUMERS GENERATE PLENTY OF DATA; GALERA CLUSTER MANAGES IT
“Codership’s Galera Cluster community and support are fantastic. It’s difficult to find a dedicated support team such as theirs these days. The product is great, it just works as we expected it to with no surprises. It scales and we happily promote it ourselves as the defacto database for Openstack and for everyone that needs an active-active schema that really works.”
- Leandro Reox & Alejandro Comisario.