Ocient Holdings LLC

David Charles Boutcher

George Kondiles

Jason Arnold

Anna Veselova

Ellis Mihalko Saupe

Finley Jordan Lau

Susmita Saha

Natalia Marie Jenuwine

Alyssa Catherine Wagenmaker

Rob Bestgen

A database system is operable to cache first resultant data generated via executing a first query in cache memory resources during a first temporal period. An instruction to re-execute the first query is processed during the first temporal period by accessing the first resultant data in the cache memory resources. A cached resultant invalidation instruction indicating the first relational database table is received. The first resultant data from the cache memory resources is removed during a second temporal period based on processing the cached resultant invalidation instruction. A third instruction to re-execute the first query is processed after the second temporal period by re-executing the first query via access to the first relational database table in the first storage resources to re-generate corresponding first resultant data for the first query.

Processing instructions to invalidate cached resultant data in a database system

A node of a database system is operable to determine, at a first time, to prepare for a shutdown. The shutdown of the node is performed at a second time that is a period of time after the first time based on the node delaying the shutdown until a plurality of currently running processes being run by the node that initiated prior to the first time are determined to be complete. During the period of time after the first time and prior to performing the shutdown, a set of new processing requests are rejected by the node.

Performing shutdown of a node in a database system

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Newcastle upon Tyne, United Kingdom

David Charles Boutcher