公开(公告)号：US20240427589A1

公开(公告)日：2024-12-26

申请号：US18341530

申请日：2023-06-26

Applicant: Salesforce, Inc.

Inventor： Shrikant Thakare ,  Zhuo Yao Chen ,  Hemanth Siddulugari ,  Julian Chow ,  Anila Kumar Garimella ,  Shivakarthik Subramanyam

IPC: G06F8/65

Abstract: Techniques are disclosed pertaining to performing upgrades by upgrade controllers. A node upgrade controller determines to upgrade a first set of nodes, of a plurality of nodes, on which executes a first set of pods that facilitate access to an instance of a particular component. The node upgrade controller obtains a lock on the plurality of nodes to prevent a pod upgrade controller from upgrading a second set of pods that execute on a second set of the plurality of nodes and facilitate access to another instance of the particular component. The unavailability of the first and second sets of pods causes a requisite number of instances of the particular component to be unavailable. The node upgrade controller upgrades the first set of nodes and releases the lock to allow the pod upgrade controller to obtain a lock on the plurality of nodes.