Fujitsu Corporation

Koji Ishibashi

Kenichi Shimazaki

Ken Yokoyama

Shinji Kikuchi

Akira Takeyama

Seiya Shindo

Nobuhiro Yugami

Naohiro Tamura

Lilian Harada

Shinji Watanabe

Yukiko Seki

Takamitsu Maeda

Koutarou Tsuro

Koutaro Tsuro

An analysis method for carrying out an analysis for responses of a computer system including a plurality of servers, includes: obtaining data concerning a CPU utilization ratio of each of the plurality of servers from the computer system, and storing the data concerning the CPU utilization ratio into a CPU utilization ratio storage; obtaining processing history data generated in the computer system, generating data of a request frequency by users of the computer system, and storing the processing history data into a request frequency data storage; and estimating an average delay time in each server by using the CPU utilization ratio of each server, which is stored in the CPU utilization ratio storage, and the request frequency stored in the request frequency data storage, and storing the estimated average delay time into a server delay time storage. By carrying out such a processing, the analysis can be carried out without changing the computer system to be analyzed and any additional cost.

Analysis method and apparatus

A distributed application system has a plurality of applications running on a plurality of servers arranged hierarchically and, when receiving a request telegraphic message from a client, executes processes while transferring a relay code between applications in order. A trace condition embedding unit embeds a trace collection condition into a relay code and transfers it to the next application. Trace collection units decide whether trace collection is to be made or not, and perform a process. The trace collection condition includes an indication of a range of tracing for each application and a record of applications which has passed through. The trace condition embedding unit further includes intermittent switch information which indicates a ratio of trace collection to reception times of the request telegraphic message.

Trace processing program, method and system

In determining a condition of a case under which the occurrence rate of the performance abnormality is high based on information related to a resource utilization situation acquired in a resource utilization situation acquisition step and an occurrence frequency of a request acquired in a request occurrence frequency acquisition step, and information related to the existence/nonexistence of the performance abnormality determined in a performance abnormality existence/nonexistence determination step, when branching a parent node that represents a situation of a decision tree to two child nodes using the method of decision tree, the decision tree is generated using an evaluation function which performs branching such that most of normal samples which belong to the parent node are contained in the one child node, and most of abnormal values which belong to the parent node are contained in the other child node.

Performance abnormality analysis apparatus, method, and program, and analysis result display method for performance abnormality analysis apparatus

Disclosed is a system for detecting falsification, the system having: a confirmation information preparing unit preparing confirmation information of source data of published content published on the Internet; a confirmation information holding unit holding the confirmation information of the source data at a predetermined point in time; a source data alteration detecting unit detecting an alteration in the source data; a reflecting unit reflecting the altered source data in the confirmation information of the confirmation information holding unit and in the published content; a published content alteration detecting unit performing alteration detection on the published content; a published content alteration notifying unit notifying a predetermined terminal of information relating to altered published content; and a controlling unit controlling detection of inappropriately altered published content, based on the confirmation information of the source data and on the confirmation information of the published content.

Falsification detection system, and falsification detection method and medium

Growing community of inventors

Kawasaki, Japan

Koji Ishibashi