Voting mechanism for session invalidation processing in an application server cluster

A computerized system for session invalidation processing in an application server cluster, said application server cluster comprising a plurality of application servers, comprising:

• a random number generator for generating a random weight vote for each instance of a web application contained in the cluster;
• a system for assigning the random weight vote to each web application upon launch of the web application in an application server of the application server cluster;
• a system for broadcasting the vote to other application servers of the application server cluster;
• a system for receiving a vote for the web application from each of the other application servers in the application server cluster in which the web application has been launched;
• a system for storing the votes in a vote table in each of the application servers in the application server cluster;
• a system for dynamically updating the votes in the vote table of each application server in the application server cluster;
• a system for assigning invalidation processing to the application server containing the web application having the highest vote in the updated vote table, wherein the highest vote comprises the highest weight vote;
• and
• a system for performing invalidation processing for all instances of the web application running in the application servers of the application server cluster.

A computer program product, stored on a computer readable medium, for session invalidation processing in an application server cluster, said application server cluster comprising a plurality of application servers, which when executed, comprises:

• program code for generating a random weight vote for each instance of a web application contained in the cluster;
• program code for assigning the random weight vote to each web application upon launch of the web application in an application server of the application server cluster;
• program code for broadcasting the vote to other application servers of the application server cluster;
• program code for receiving a vote for the web application from each of the other application servers in the application server cluster in which the web application has been launched, wherein the highest vote comprises the highest weight vote;
• program code for storing the votes in a vote table in each of the application servers in the application server cluster;
• program code for dynamically updating the votes in the vote table of each application server in the application server cluster;
• program code for assigning invalidation processing to the application server containing the web application having the highest vote in the updated vote table;
• and
• program code for performing invalidation processing for all instances of the web application running in the application servers of the application server cluster.

A computerized system for deploying a session invalidation processing application, comprising:

• a computer infrastructure being operable to:
• generate a random weight vote using a random number generator for each instance of a web application in an application server cluster;
• assign the random weight vote to each web application upon launch of the web application in an application server of the application server cluster;
• broadcast the vote to other application servers of the application server cluster;
• receive a vote for the web application from each of the other application servers in the application server cluster in which the web application has been launched;
• store the votes in a vote table in each of the application servers in the application server cluster;
• dynamically update the votes in the vote table of each application server in the application server cluster;
• assign invalidation processing to the application server containing the web application having the highest vote in the updated vote table, wherein the highest vote comprises the highest weight vote;
• and
• perform invalidation processing for all instances of the web application running in the application servers of the application server cluster.