Scalable, real-time messaging system

A computing device, comprising:

• a channel manager node operable to:
• select a first hosting node from a plurality of hosting nodes based, at least in part, on load data comprising node-specific data representing loads on the plurality of hosting nodes and channel-specific data representing a load associated with a channel comprising a channel portion to be temporarily offloaded;
• send a request to the first hosting node to temporarily host the channel portion of the channel, wherein the request to the first hosting node to temporarily host the channel portion comprises an indication for one or more messages published to the channel to be temporarily stored and for access to the one or more messages to be temporarily provided to a plurality of subscribers to the channel, and wherein the one or more messages were previously stored on a second hosting node;
• receive, from an interface node, a request to access the channel portion;
• and
• grant, to the interface node, permission to access the channel portion.

A non-transitory machine-readable medium having instructions stored thereon that, when executed by one or more computer processors, cause the one or more computer processors to:

• select a first hosting node from a plurality of hosting nodes based, at least in part, on load data comprising node-specific data representing loads on the plurality of hosting nodes and channel-specific data representing a load associated with a channel comprising a channel portion to be temporarily offloaded;
• send, to the first hosting node, a request to temporarily host the channel portion of the channel, wherein the request to the first hosting node to temporarily host the channel portion comprises an indication for one or more messages published to the channel to be temporarily stored and for access to the one or more messages to be temporarily provided to a plurality of subscribers, and wherein the one or more messages were previously stored on a second hosting node;
• receive a request to access the channel portion;
• and
• grant permission to access the channel portion.