Patent attributes
A method is presented for correlating related transactions, such as a parent transaction that invokes a child transaction within a distributed data processing system, using a particular format for the correlation tokens. Each transaction is associated with a correlation token containing a hierarchical, three-layer identifier that includes a local transaction identifier and a local system identifier, which are associated with the local system of the child transaction, along with a root transaction identifier, a root system identifier, and a registry identifier. The local transaction identifier is unique within the local system, and the local system identifier is unique within a registry that contains a set of system identifiers. The registry is associated with a domain in which the local systems operate, and multiple domains exist within a transaction space of entities that use these correlation tokens. Correlation token pairs are analyzed to construct a call graph of related transactions.