Hitachi

Hitachi Application Server V10 User's Guide (For UNIX® Systems)


Glossary

A

Administration Console

A GUI used to build and operate systems using Application Server.

C

CA

This is an abbreviation of Certificate Authority. This is function for issuing certificate for using SSL is also called as authentication authority. This is entity in reliability that issues a valid certificate for other entity. The types of this certificate are:

Root CA : Correctness of self is certified by self, without receiving the certification of the upper level CA.

Intermediate CA : Receives the certificate from the upper level CA for certifying the correctness of self.

cluster

A group of server instances sharing the same applications, resources, and settings information.

CopyGC

GC performed for the New area when using SerialGC.

D

domain

A group that controls components forming a business system, namely server instances, web servers, and performance tracers.

domain administration server

A server that administers a domain.

E

Explicit heap

Memory storage not subject to GC that is used with the explicit memory management functionality.

explicit memory management functionality

A functionality that prevents full GC from occurring when using SerialGC.

F

full GC

GC performed for the Tenured area.

G

G1GC

A GC processing mode. Performs YoungGC for the New area, and MixedGC for the Tenured area. A processing mode that emphasizes the alleviation of application down time due to GC.

GC

Memory recovery processing performed automatically by Java VM.

H

HTTP

HTTP is an abbreviation for Hypertext Transfer Protocol. This is the communication protocol for sending and receiving the HTML document between the web server and web client, by using Internet.

I

identifier targeted by the setting

An identifier that is a target of a setting for which setting values can be changed or acquired by using the set, get or list subcommand of the asadmin utility.

J

Java EE RI

A Java EE reference implementation.

Java EE RI DD

A deployment descriptor provided by the Java EE reference implementation.

L

load balancer

A device or piece of software that controls the transfer of requests to equalize the load on back end servers.

N

node

The host on which a server instance, web server, or performance tracer is running.

P

Planned termination

Planned termination is a method to stop running server processes or server threads after execution completes.

private key

A key used for public-key encryption to decrypt data or create an electronic signature. It is also called a secret key. Each private key is safely managed by their owners. The recipient of encrypted data uses his or her own private key to decrypt the data. Similarly, the sender of data uses his or her own private key to create an electronic signature when attaching an electronic signature to that data.

public key

A key used for public-key encryption to encrypt data or verify electronic signatures. Normally, public keys are published on the network. The sender of encrypted data uses the recipient's public key to encrypt the data. Similarly, the recipient uses the sender's public key to verify the electronic signature of received data.

S

SerialGC

A GC processing mode. Performs CopyGC for the New area, and full GC for the Tenured area. A processing mode that emphasizes throughput.

server instance

The server process that runs the Java EE application.

server template

A file documenting the settings needed to operate a server instance, web server, and performance tracer, which is referenced by the domain administration server when building environments.

specific DD

A definition file in XML format used to configure Java EE Server-specific functions for each Java EE application and module.

SSL

This is an abbreviation of Secure Sockets Layer. This is one of the protocols for sending and receiving the encrypted information through the network. This is the topmost layer of TCP. This layer performs authentication, key exchange, encryption and message authentication by certification between the client and web server.

T

TLS

This is an abbreviation of Transport Layer Security. This is one of the protocols for sending and receiving the encrypted information through the network. This protocol has been made better based on SSL.

U

URI

This is an abbreviation of Uniform Resource Identifier. This is the standard that has the method of specifying the position of data on the web and method of specifying a certain data on the web with a specific name, as the method of URL. It has the combination of URL and URN and you can use the same for expressing the internet resources, and identifying the name space in an XML document. URI is a generic concept and holds a position above URL. It is prescribed with RFC1630.

W

web front system

A system pattern that Application Server mainly support. A system consisting of a security device, load balancer, Application Server, database server, job management server, and message monitoring server.

Web server

A program to execute the processing related to requests receptions from the web browser and data transmission to web browser.