High Availability and Disaster Recovery for IMDG

IMDG is generally used as a compute grid and/or DBMS cache. That's why data in a grid may be safely lost and then recovered from a persistent store. But what if we want to use the grid as the data store for the core banking platform? This paper is to describe the GridGain in-memory data fabric add-ons and new features to provide the ultimate distributed data store.

Contents:

• The bank requirements to HA & DR
• The legacy HA & DR architecture
• The high-level architecture of the Sberbank new generation core banking platform
• The business continuity threat model
• GridGain SPI implementation
  • „Data cells“ and the new affinity function
  • the node metadata-based topology validator
  • the quorum-based topology validator
• The new features of GridGain in-memory data fabric Ultimate edition
  • Local Fie Store (LFS) – the new distributed data store on the local disks
  • write-ahead logging
  • grid snapshots
  • the common architecture of the backup/restore subsystem
  • the log mining API and data replication
  • the nodes' health self-check
  • the system software/firmware upgrade without the grid downtime