Monday, March 26, 2012

Tenant Aware Load Balancer Concept

Tenant Aware Load Balancer is the upcoming Load Balancer from WSO2. If a Cloud deployment has to be able to scale to thousands, hundreds of thousands or millions of tenants, we need tenant-partitioning. This means, for a single Cloud service, there will be multiple clusters, and each of these Service clusters will handle a subset of the tenants in the system.Here i will briefly  describe about it. I will add complete article on this later.

  1. Tenants are loaded in demand and assign to a cluster
  2. Unloading the unused tenants.
  3. Notifying the load balancers when a tenant is loaded.
  4. by adding the Loadbalancers in to a group communication group and publishing a message to the group when a tenant is loaded.
  5. Can define statically tenants to each clusters
  6. Single service may have multiple clusters and each cluster is assigned in tp particular tenant range
  7. Always running an additional cluster(Default cluster) to quickly load new tenants.

Following diagram describes the overall design of tenant aware load balancer

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