Abstract: The disclosure herein describes a message ordering system for processing and synchronizing chat messages in partitions to maintain messaging order and load balancing in a distributed system at scale. Messages are placed in partitions based on session identifiers (IDs). Messaging order is secured by a session receiver holding a lock over particular partitions. Receivers having subscription to messages in service bus are enabled to terminate on occurrence of a predetermined event, such as threshold wait time without receiving additional messages with a selected session ID from their partitions, activity level on a node, number of receivers on a node or other metrics. Session ID locks are released after a session ends, a receiver terminates or a node crashes for failure handling. New receivers are created to handle new incoming messages for additional load balancing and/or failover.

Abstract: The disclosure herein describes a message ordering system for processing and synchronizing chat messages in partitions to maintain messaging order and load balancing in a distributed system at scale. Messages are placed in partitions based on session identifiers (IDs). Messaging order is secured by a session receiver holding a lock over particular partitions. Receivers having subscription to messages in service bus are enabled to terminate on occurrence of a predetermined event, such as threshold wait time without receiving additional messages with a selected session ID from their partitions, activity level on a node, number of receivers on a node or other metrics. Session ID locks are released after a session ends, a receiver terminates or a node crashes for failure handling. New receivers are created to handle new incoming messages for additional load balancing and/or failover.

Abstract: A synchronization system provides a generic synchronization mechanism in which copies of data of an entity maintained by different applications can be synchronized through application-specific entity adapters. An entity adapter for an application receives from the synchronization system a synchronization request to synchronize an entity of the application and interacts with the application to ensure the entity is synchronized as requested. Each application that takes an action on an entity provides a transaction to the synchronization system. Upon receiving a transaction, the synchronization system stores an indication of the transaction in a synchronization store. The synchronization system waits until any sent synchronization transactions for an entity complete before sending subsequent synchronization transactions for that entity to ensure that the same transaction ordering is used by the target applications.

Abstract: A synchronization system provides a generic synchronization mechanism in which copies of data of an entity maintained by different applications can be synchronized through application-specific entity adapters. An entity adapter for an application receives from the synchronization system a synchronization request to synchronize an entity of the application and interacts with the application to ensure the entity is synchronized as requested. Each application that takes an action on an entity provides a transaction to the synchronization system. Upon receiving a transaction, the synchronization system stores an indication of the transaction in a synchronization store. The synchronization system waits until any sent synchronization transactions for an entity complete before sending subsequent synchronization transactions for that entity to ensure that the same transaction ordering is used by the target applications.