Method for monitoring performance of a message-delivery system

A method of monitoring performance of a message-delivery system, the system comprising at least one message router configured to receive messages and to output the messages for transmission to one or more destinations, the method comprising:

• detecting a router condition comprising at least one of (i) a threshold measure of difference between router-input and router-output, (ii) a threshold measure of change in router message-queue length, and (iii) a threshold measure of router-delivery attempts per message;
• and
• responsively generating an alert to indicate a problem with the message-delivery system,
• wherein detecting a threshold measure of difference between router-input and router-output comprises (a) for each of a plurality of time intervals measuring a respective difference between a number of messages received into a given message router and a number of messages transmitted out of the given message router, and (b) determining that at least one such respective difference meets a predefined threshold, and
• wherein detecting a threshold measure of difference between router-input and router-output further comprises detecting a threshold number of occurrences of threshold differences between router-input and router-output.

A method of monitoring performance of a message-delivery system, the system comprising at least one message router configured to receive messages and to output the messages for transmission to one or more destinations, the method comprising:

• detecting a router condition comprising at least one of (i) a threshold measure of difference between router-input and router-output, (ii) a threshold measure of change in router message-queue length, and (iii) a threshold measure of router-delivery attempts per message;
• and
• responsively generating an alert to indicate a problem with the message-delivery system,
• wherein detecting a threshold change in router message-queue length comprises (a) at predefined periods, measuring a current message-queue length in the at least one message router and determining a respective difference between the current message-queue length and a preceding message-queue length, and (b) determining that at least one such respective difference meets a predefined threshold,
• the method further comprising maintaining in data storage a plurality of predefined thresholds each corresponding with a particular time of day,
• wherein a given one of the periods falls within a given time of day and thus has a given predefined threshold, and
• wherein determining that at least one respective difference meets a predefined threshold comprises determining for the given period that the respective difference meets the given predefined threshold.

A method of monitoring performance of a message-delivery system, the system comprising at least one message router configured to receive messages and to output the messages for transmission to one or more destinations the method comprising:

• detecting a router condition comprising at least one of (i) a threshold measure of difference between router-input and router-output, (ii) a threshold measure of change in router message-queue length, and (iii) a threshold measure of router-delivery attempts per message;
• and
• responsively generating an alert to indicate a problem with the message-delivery system,
• wherein detecting a threshold change in router message-queue length comprises (a) at predefined periods, measuring a current message-queue length in the at least one message router and determining a respective difference between the current message-queue length and a preceding message-queue length, and (b) determining that at least one such respective difference meets a predefined threshold, and
• wherein detecting a threshold change in router message-queue length further comprises detecting a threshold number of occurrences of threshold differences between current message-queue length and preceding message-queue length.