CLUSTER MANAGEMENT

Methods and systems cluster management are disclosed. In some example embodiments, a cluster manager determines a configuration of roles for a plurality of distinct server machines and for a plurality of builder machines, with each one of the server machines storing a corresponding shard of data, and each one of the plurality of builder machines comprising a corresponding one of the corresponding shards of data of the server machines. The cluster manager applies the configuration of roles to the plurality of server machines, the plurality of builder machines, and an aggregator, with the configuration of the builder machines being characterized by an absence of communication with the aggregator. The configuration is used to determine which machines to be communicated with by the aggregator for a client request and which machines to be communicated with by an update service for an update of data.