Patent ID: 8032896
Filing Date: 2011-10-04
Classification: G06F

Abstract:
1. A method for suppression of notification of chattering events in a storage system comprising a processor and a memory, the method comprising: setting a suppression level, of a plurality of suppression levels, by comparing a rate of growth of one or more event logs that log event notifications associated with a plurality of events to one or more predefined target rates; calculating a set of statistics comprising a percentage of events of the plurality of events as non-chattering events based on the set suppression level; calculating a cutoff point percentile for the non-chattering events based on the calculated set of statistics comprising the percentage of events of the plurality of events as the non-chattering events; receiving an event notification associated with a particular event of the plurality of events; determining if the particular event, associated with the received event notification, is a chattering event of the chattering events based on a comparison of a percentile of the is particular event to the cutoff point percentile, wherein the particular event is the chattering event if the particular event occurs in a percentile greater than the cutoff point percentile; in response to determining that the particular event, associated with the received event notification, is the chattering event, suppressing the received event notification in accordance with a suppression rate; and dynamically modifying the determination as to whether the particular event, associated with the received event notification, is the chattering event based on actual occurrence values.