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Anleitung Zusammenfassung
HP Reliable Transaction Router Version 5.2 for
53.88.17
Windows
The RTR system management interface is available as
Backend Features
a command line interface and a web-based interface.
The web-based interface provides a point and click style
• Runs on the Windows 2003 Server or Windows XP
of managing RTR from a browser. The browser inter-
operating systems.
face provides monitoring and management of the RTR
• May be started as a Windows service.
configuration with the RTR Manager, and RTR Explorer,
components of the browser-based RTR Administrator.
• Provides transparent, content-based transaction
routing for client/server applications.
Both interfaces allow the creation, deletion, and modi-
• Provides publish/subscribe broadcast (nontransac-
fication of application networks (facilities) within a net-
tional) messaging for delivery to multiple subscription
work, and permit control of distributed RTR processes
domains within a virtual network.
from a single system in the distributed environment. The
RTR system management interfaces are used to bind
• Allows user-defined partitioned data models (content-
the physical hardware (CPU and communications) to a
based routing) for improved performance of user ap-
virtual network namespace and are transparent to the
plications.
applications software. A monitoring utility can be in-
• Acts as a layer between client and server applica-
voked to report application performance information on
tions, thus decoupling the end-to-end relationship
a local or remote node.
normally required by user application control. This
provides the application developer with a single sys-
Reliable Transaction Router is independent of forms and
tem view of the programming environment.
window management systems and databases. Multiple
databases and other resource managers (for example,
• Ensures atomicity of transactions (all or nothing) by
flat-file systems) can be updated within the same dis-
using a two-phase commit protocol for transactional
tributed transaction.
message delivery among one or more server appli-
cations.
Reliable Transaction Router is intended for distributed
• Offers at-most-once semantics for valid transactions.
applications that require continuous computing services
This includes specially flagged transaction replay to
and transaction integrity (for example, trading systems,
a surviving server application, or a later instantiation
banking systems, electronic commerce, payment sys-
of that server on the same or a different machine on
tems, transportation systems, and telecommunications
the virtual network.
systems).
• Supports multiple (concurrent) servers as well as
Reliable Transaction Router can also be used for ap-
multithreaded clients and servers.
plications that require reliable messaging and fault tol-
• Supports user authentication control (callout servers)
erant application control over LANs or WANs. Reliable
with consistent reply in shadow environments.
Transaction Router provides the enabling technology for
applications requiring fully distributed client/server mod-
• Provides disaster protection against site failure by
els.
mirroring transactions in shadow-server environ-
ments. Automatic resynchronization of shadow pairs
On Windows, Reliable Transaction Router provides an
after recovery is provided transparently to the appli-
interface for controlling transaction commitment directly
cation.
with an XA-compliant resource manager, such as OR-
• Maintains performance scaling over a wide range of
ACLE9 and with a Microsoft DTC compliant resource
configurations allowing easy horizontal expansion of
manager such as Microsoft SQL Server.
both hardware systems and application software.
License Types
• Enables automatic failover/failback of server appli-
cations on multiple backend systems while remain-
Reliable Transaction Router for Windows has two li-
ing transparent to client applications executing on re-
cense types.
mote systems. RTR can maintain application opera-
tion in many instances of single or multiple failures in
The Backend license provides full client/router/server
a widely distributed software/hardware configuration.
functionality.
It is required for nodes configured as
• Includes system management interfaces for online
routers or servers, and can also be used for nodes con-
control of virtual networks from any workstation or
figured as clients.
terminal with the appropriate privileges. Monitoring of
The Frontend license provides client application func-
statistics, software and hardware states, and clients
tionality only, in a production environment, plus a single-
and servers is provided from local and remote nodes.
node development and testing environment for RTR ap-
• Uses TCP/IP IPv4 as the underlying network trans-
plications.
port.
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