Managing connection failover in a load balancer

An apparatus for managing communications for a group of servers, the apparatus comprising:

• a bus;
• a memory connected to the bus, having program code stored therein;
• one or more processor units connected to the bus, wherein the one or more processor units execute the program code to:
• receive by each server in a group of servers a request, from the one or more processor units, for connection information for generating a set of mappings for a load balancer of the group of servers to replace another set of mappings for another load balancer of the group of servers, wherein access to the servers in the group of servers is distributed by the load balancer and the another load balancer;
• determine whether all servers in the group of servers have responded to the request for connection information, wherein when a server in the group of servers responds the server sends a copy of connections in the server to the one or more processor units;
• create a sub-group of servers, in the group of servers, comprising servers that have not yet responded to the request for connection information;
• and
• responsive to a determination that a route to the server in the group of servers for a communication received from a client device cannot be identified from the set of mappings for the load balancer while the sub-group of servers includes one or more servers that have not yet responded to the request for connection information, receive the communication by the sub-group of servers from the one or more processor units.

A computer program product for managing communications for a group of servers, comprising program instructions stored on a computer readable storage device, for:

• receiving by each server in a group of servers a request, from one or more processor units, for connection information for generating a set of mappings for a load balancer of the group of servers to replace another set of mappings for another load balancer of the group of servers, wherein access to the servers in the group of servers is distributed by the load balancer and the another load balancer;
• determining whether all servers in the group of servers have responded to the request for connection information, wherein when a server in the group of servers responds the server sends a copy of connections in the server to the one or more processor units;
• creating a sub-group of servers, in the group of servers, comprising servers that have not yet responded to the request for connection information;
• and
• responsive to a determination that a route to the server in the group of servers for a communication received from a client device cannot be identified from the set of mappings for the load balancer while the sub-group of servers includes one or more servers that have not yet responded to the request for connection information, receiving the communication by the sub-group of servers from the one or more processor units.