1. A log association method, comprising: obtaining a plurality of log records from at least one input source, each log record having a plurality of fields, each field having a value; associating all log records in the plurality of log records having a first common value in a first one or more fields with a first logical group; associating all log records in the plurality of log records having a second common value in a second one or more fields with the first logical group; retaining at least one log record from the plurality of log records when the value of the first one or more fields of the at least one log record is different than the first common value and the value of the second one or more fields of the at least one log record is different than the second common value; and using the first logical group to analyze operations of one or more systems associated with the plurality of log records.