A system for handling performance issues of a production Complex Event Processing, CEP, system during runtime, wherein the production CEP system comprises at least one event source, at least one continuous query and at least one event sink, wherein the system comprises: a. at least one monitoring sensor adapted for producing a stream of status events relating to the production CEP system; characterized in that the system further comprises: b. a monitoring CEP system adapted for executing at least one continuous analysis query on the stream of status events to produce a stream of monitoring events, wherein the stream of monitoring events indicates performance issues of the production CEP system relating to the throughput, the latency, and/or the memory consumption of the production CEP system; c. wherein the system further comprises a system stabilization component adapted for automatically initiating an action for resolving an identified performance issue of the production CEP system; and d. wherein the action for resolving an identified performance issue of the production CEP system is selected from the group comprising: - rejecting new input streams, continuous queries and/or query consumers of the production CEP system, - sorting a plurality of continuous queries of the production CEP system by memory consumption and stopping queries until memory consumption is in a reasonable range, and - sorting input streams of the production CEP system by input rate and sorting a plurality of continuous queries of the production CEP system by output rate and stopping queries until bandwidth consumption is in a reasonable range. wherein the production CEP system comprises at least one event source, at least one continuous query and at least one event sink, wherein the system comprises: a. at least one monitoring sensor adapted for producing a stream of status events relating to the production CEP system; characterized in that the system further comprises: b. a monitoring CEP system adapted for executing at least one continuous analysis query on the stream of status events to produce a stream of monitoring events, wherein the stream of monitoring events indicates performance issues of the production CEP system relating to the throughput, the latency, and/or the memory consumption of the production CEP system; c. wherein the system further comprises a system stabilization component adapted for automatically initiating an action for resolving an identified performance issue of the production CEP system; and d. wherein the action for resolving an identified performance issue of the production CEP system is selected from the group comprising: - rejecting new input streams, continuous queries and/or query consumers of the production CEP system, - sorting a plurality of continuous queries of the production CEP system by memory consumption and stopping queries until memory consumption is in a reasonable range, and - sorting input streams of the production CEP system by input rate and sorting a plurality of continuous queries of the production CEP system by output rate and stopping queries until bandwidth consumption is in a reasonable range. a. at least one monitoring sensor adapted for producing a stream of status events relating to the production CEP system; b. a monitoring CEP system adapted for executing at least one continuous analysis query on the stream of status events to produce a stream of monitoring events, wherein the stream of monitoring events indicates performance issues of the production CEP system relating to the throughput, the latency, and/or the memory consumption of the production CEP system; c. wherein the system further comprises a system stabilization component adapted for automatically initiating an action for resolving an identified performance issue of the production CEP system; and d. wherein the action for resolving an identified performance issue of the production CEP system is selected from the group comprising: - rejecting new input streams, continuous queries and/or query consumers of the production CEP system, - sorting a plurality of continuous queries of the production CEP system by memory consumption and stopping queries until memory consumption is in a reasonable range, and - sorting input streams of the production CEP system by input rate and sorting a plurality of continuous queries of the production CEP system by output rate and stopping queries until bandwidth consumption is in a reasonable range. - rejecting new input streams, continuous queries and/or query consumers of the production CEP system, - sorting a plurality of continuous queries of the production CEP system by memory consumption and stopping queries until memory consumption is in a reasonable range, and - sorting input streams of the production CEP system by input rate and sorting a plurality of continuous queries of the production CEP system by output rate and stopping queries until bandwidth consumption is in a reasonable range.