Yahoo! Inc.

Compuware Corporation

Webspective Software, Inc.

Jason DeBettencourt

Stanley Yamane

Marco A Lara

Freeland Abbott

Marco Lara

Arthur Mateos

William Ryan Breen

Imad Mouline

Matthew Cross

Stefan Reitshamer

Swapnil Shah

Keith Weng

Scott Shen

A website test environment invokes multiple instances of a commercial browser, and captures invocations of browser operations for gathering performance data without interference from other instances or multiple occurrences of the operating system (OS). Commercial browsers often employ constraints that assume only a single instantiation is executing on a particular machine. Configurations allow each instance to present as a separate user, thus avoiding conflicts that may arise from temporary files and network connections, for example. Each browser instance operates as a performance agent and dynamically links with a set of entry points for accessing performance related browser operations. As each agent invokes native (OS specific) machine functions for network access via particular entry points, configurations disclosed herein redirect the entry points to a collection layer of instructions (code) for capturing performance data in addition to invoking the native OS function called for by the browser operation.

Multiple instance commercial browser website test agent

This invention relates to managing multiple web servers, and more particularly to a web service system and method that allows a system operator to distribute content to each web server in the web service system. In one embodiment, a method for replicating changes in a source file set on a destination file system includes identifying changes in a source file set, storing the identified changes in a modification list, and transmitting the modification list to an agent having access to a destination file system. In another embodiment, a method for replicating changes in a source file set on a destination file system includes identifying changes in a source file set, storing the identified changes in a modification list, and transmitting the modification list to a plurality of web servers. In another embodiment, a web service system includes a manager for managing the web service system, a host comprising a web server for receiving web page requests and an agent in communication with the manager, and a content distributor for providing content changes to the host. In another embodiment, a content distributor includes an identification module for identifying changes in a source file set, a modification list for storing identified changes, and a transmitter for transmitting the modification list to an agent having access to a destination file system.

Web server content replication

Website load testing using agents is disclosed. An address of a website and a window of time in which to perform a load test are received. The address and the window of time are distributed to a plurality of remotely operating agents, distributed over a wide area. Each agent in the plurality is to access the website at the received address during the window of time to load test the website. Data from the plurality of agents is received upon passage of the window of time, describing a load placed upon the website by the plurality of agents. The received data describing the load placed upon the website is presented. Alternatively, a script may be used to load test a website, the script a series of commands to be executed across the website as a simulation of a transaction, the script to be executed in the window of time.

Website load testing using a plurality of remotely operating agents distributed over a wide area

A system for serving web pages manages a plurality of web servers. The system provides an operator with features and tools to coordinate the operation of the multiple web servers. The system may manage traffic by directing web page requests to available web servers and balancing the web page request service load among the multiple servers. The system may collect data on web page requests and web server responses to those web page requests, and provide reporting of the data as well as automatic and manual analysis tools. The system may monitor for specific events, and may act automatically upon the occurrence of such events. The events may include predictions or thresholds that indicate impending system crises. The system may include crisis management capability to provide automatic error recovery, and to guide a system operator through the possible actions that can be taken to recover from events such as component failure or network environment problems. The system may present current information about the system operation to a system operator. The system may manage content replication with version control and data updates.

Web service

Changes to files in a master source file set on a master computer are identified. Local host addresses of the files are converted to uniform resource locators. The identified changes are stored in a modification list comprising the uniform resource locators specifying changed files of the master source file set. The modification list is transmitted to one or more computers, notifying the one or more computers that the master source file set has changed. A response is received from at least one of the one or more computers, indicating that the identified changes are installed. An alert is issued indicating that a copying of the changes by an agent in at least one of the one or more computers has failed, to cause a traffic manager that redirects traffic to decrease requests made to a web server on the computer having the agent.

A system for serving web pages manages a plurality of web servers. The system provides an operator with features and tools to coordinate the operation of the multiple web servers. The system can manage traffic by directing web page requests to available web servers and balancing the web page request service load among the multiple servers. The system can collect data on web page requests and web server responses to those web page requests, and provide reporting of the data as well as automatic and manual analysis tools. The system can monitor for specific events, and can act automatically upon the occurrence of such events. The events can include predictions or thresholds that indicate impending system crises. The system can include crisis management capability to provide automatic error recovery, and to guide a system operator through the possible actions that can be taken to recover from events such as component failure or network environment problems. The system can present current information about the system operation to a system operator. The system can manage content replication.

Growing community of inventors

Framingham, MA, United States of America

Jason DeBettencourt