Oracle International Corporation

Ashwin Kumar Karkala

Govinda Sambamurthy

Raji Sankar

Rahul Goyal

Sandeep Pandita

Rajiv K Maheshwari

Lalatendu Patra

Mridhula N Shetty

Techniques for running diagnostic rules across multiple nodes are disclosed. A root cause of an error occurring on a particular node is determined. A root cause of an error on the particular node is identified based on a metric corresponding to another node and/or based on a previously-reported error on another node. Additionally or alternatively, an error is predicted to occur on a particular node. The error is predicted based on a trend associated with a metric corresponding to another node.

Mechanism for running diagnostic rules across multiple nodes

A method of determining a root cause of a performance problem is provided. The method comprises analyzing a plurality of performance indicators/metrics in a first time period and determining that at least one performance indicators/metric is exhibiting abnormal behavior. The method further comprises analyzing the plurality of performance indicators/metrics over a second time period, the second time period is longer than the first time period, and determining trend information for each performance indicators/metric over the second time period. The method further comprises correlating the trend information for each performance indicators/metric with performance problem information stored in a knowledge base, identifying a potential cause of the abnormal behavior based on the correlation, and alerting a user of the potential cause.

System and method for determining causes of performance problems within middleware systems

Systems and methods are described for diagnosing behavior of software components in an application server. The application server can comprise a plurality of components that process incoming requests. A diagnostics advisor can be deployed with the application server and can determine an efficiency and/or inefficiency of each of the components of the application server or other middleware system. The efficiency determined by computing a ratio of the number of requests that completed execution during a particular sampling time period to the number of requests that were received. The inefficiency is the ratio of the number of requests that are still being executed at the end of the sampling time period to the number of requests that were received. The diagnostics advisor employs the determined efficiency and/or inefficiency to diagnose a misbehavior or other problem of the components in the application server.

Method of measuring and diagnosing misbehaviors of software components and resources

A method of isolating relevant components associated with a performance problem. The method comprises creating a static model of a system under test, including determining relationships between components in a middleware system. The method also comprises creating a dynamic problem tree by applying the static model to the system at runtime. The method further comprises identifying a link probability for each relationship in the dynamic problem tree; and traversing the dynamic problem tree to detect redundant components. A component is redundant if it has a link probability with its downstream component greater than a pre-determined threshold value. The method also comprises removing redundant components from the dynamic problem tree; and returning a set of components which are potential components to be analyzed further to determine the root causes of the performance problem.

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Bengaluru, India

Ashwin Kumar Karkala