Content transformations using a transformation node cluster

A computer program product comprising a non-transitory machine-readable medium storing instructions that, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:

• receiving, by a router node, a request from a client machine for a content item stored in a repository in a target format;
• identifying, by the router node, a current content format of the content item and determining a series of content transformations needed to transform the content item from the current content format to the target content format according to the request;
• determining one or more transformation nodes controlled by the router node, the one or more transformation nodes configured to support one or more transformation types for transforming the content item from the current content format to the target format;
• tracking, by the router node, an efficiency metric indicative of progress of one or more content transformations by the one or more transformation nodes for transforming the current target format to the target content format;
• in response to determining that the efficiency metric is not met, updating assignments of the one or more transformation nodes to support newly defined transformation types such that the efficiency metric is improvable by assigning to at least a first transformation node ability to support a first transformation type previously not supported by the first transformation node, responsive to a second transformation node not being available to support the first transformation type;
• and
• routing, by the router node, the content item to the first transformation node.

A computer-implemented system having one or more processors, the system further comprising:

• a router node receiving a request from a client machine for a content item stored in a repository associated with a server machine,
• the router node communicating with a transformation node cluster comprising a plurality of transformation nodes,
• at least one of the plurality of transformation nodes being configured to execute at least one of a plurality of content transformation types;
• identifying, by the router node, a first content format associated with the content item and a second content format to which the content item is to be transformed by way of one or more content transformations performed by one or more transformation nodes;
• in response to the request, the router node identifying one or more content transformation types for transforming the content item to the second content format;
• the router node tracking progress of the one or more content transformations to effect a reassembly of sub-parts of the content item, in response to the content item having been divided into the sub-parts such that at least a first sub-part is transformed by a first transformation node and a second sub-part is transformed by a second transformation node;
• and
• the router node, in response to detecting that the request is satisfied, executing a callback routine to notify the client machine about a location in the repository where the transformed content item is stored,
• the first transformation node and the second transformation node in the transformation node cluster being respectively associated with a first transformation type and a second transformation type,
• the first transformation type being different from the second transformation type such that the first transformation type is assigned to the first transformation node and the second transformation type is assigned to the second transformation node according to a self-configuration mechanism that seeks to balance transformation load among one or more transformation nodes in a cluster of nodes, in accordance with the transformation types supported by at least one of the first transformation node and the second transformation node, a designated number of transformation nodes being configured to support a designated number of transformation types and the first transformation node being dynamically adjusted based on at least one of revised estimates, historical information about real-time load information, or other load analytics or measurements to support a different or additional transformation type to transform the content item to a first intermediate content item having a first intermediate format, and
• the second transformation node being configured to transform the first intermediate content item to either a second intermediate content item having a second intermediate format or to a target content item having the target format.