1. A computer-implemented method for monitoring transaction processing at a computing system comprising: monitoring transactions between computing resources of a computing system using a transaction monitoring agent; generating transaction log information corresponding to the transactions; obtaining automatically a current transaction rate for a current time period based on the transaction log information; obtaining automatically a previous transaction rate for a previous time period prior to the current time period based on the transaction log information; comparing the current transaction rate to the previous transaction rate; and generating a transaction rate alert responsive to determining that the previous transaction rate exceeds the current transaction rate.