Abstract: A computer-implemented method for state synchronization may include (i) identifying a type of a message from a client device to a server that includes an intended update to content hosted on the server, (ii) determining, based on the type of the message, whether to direct the message to a best-effort publisher-subscriber module or a lossless publisher-subscriber, (iii) directing the message to the best-effort publisher-subscriber module based on the type of the message, (iv) identifying a different type of an additional message from the client device to the server that includes a new intended update to the content, and (v) directing the additional message to the lossless publisher-subscriber module based on the different type of the additional message. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: In one embodiment, a method includes identifying a mobile service provider network (SPN) and a geographic location of an online social network user and accessing a service-provider table associated with the identified mobile SPN and with the geographic location. The service-provider table indexes a reliability score and a sampling amount for multiple messaging-service providers in the geographic location. The method further determines, based on the service-provider table, whether any of the messaging-service providers has a sampling amount below a threshold sampling amount and sends messaging traffic via the determined messaging-service provider until the sampling amount is greater than or equal to the threshold sampling amount. The messaging traffic is used to update the reliability score for the messaging-service provider.

Abstract: In one embodiment, a method includes identifying a mobile service provider network (SPN) and a geographic location of an online social network user and accessing a service-provider table associated with the identified mobile SPN and with the geographic location. The service-provider table indexes a reliability score and a sampling amount for multiple messaging-service providers in the geographic location. The method further determines, based on the service-provider table, whether any of the messaging-service providers has a sampling amount below a threshold sampling amount and sends messaging traffic via the determined messaging-service provider until the sampling amount is greater than or equal to the threshold sampling amount. The messaging traffic is used to update the reliability score for the messaging-service provider.