Method and a control node in an overlay network

摘要

A first control node and a method therein for selecting the first control node or a second control node to act as a server are provided. The first and second control nodes are comprised in an overlay network. The first control node obtains a first indication relating to a ranking of a suitability of the first control node to act as the server. Furthermore, the first control node receives a second indication from the second control node. The second indication relates to a ranking of a suitability of the second control node to act as the server. Then, the first control node selects, based on the first and second indications, one of the first and second control nodes to act as the server for managing a master representation of a distributed shared memory being accessible within the overlay network.

主权项

1. A method in a first control node for selecting the first control node or a second control node to act as a server for managing a master representation of a distributed shared memory being accessible within an overlay network, wherein the first and second control nodes and a subscription managing node are comprised in the overlay network, the overlay network being overlaid onto an IP-network, wherein the subscription managing node is configured to provide a communication channel of the overlay network between the first and second control nodes, the method comprising:
obtaining a first indication relating to a ranking of a suitability of the first control node to manage the master representation of the distributed shared memory; sending a request for indications to the subscription managing node; receiving, over the communication channel, a second indication in response to the request for indications from the second control node via the subscription managing node, wherein the second indication relates to a ranking of a suitability of the second control node to manage the master representation of the distributed shared memory; and selecting, based on the first and second indications, one of the first and second control nodes to manage the master representation of the distributed shared memory.