Configuring HP DCE Cells

 

 

Configuring Cells Using dce_config

 

 

 

Priority

Format

Content

 

 

 

SUMMARY

S:******<message>

High-level summary of action

 

 

being taken or action

 

 

completed. Always logged to log

 

 

file. Also logged to display

 

 

unless

 

 

DISPLAY_THRESHOLD is

 

 

WARNING or ERROR.

 

 

 

VERBOSE

V:<message>

Low-level summary of actions

 

 

being taken, user queries and

 

 

responses, or actual commands

 

 

executed that do not affect

 

 

configuration or node state.

 

 

Logged to log file unless

 

 

LOG_THRESHOLD is

 

 

DETAIL or higher. Not logged

 

 

to display unless

 

 

DISPLAY_THRESHOLD is

 

 

VERBOSE or lower.

 

 

 

DEBUG

DEBUG:<message>

Actual commands executed that

 

 

show only where in the

 

 

dce_config script the actions

 

 

are taking place. Also used for

 

 

recording sleep commands.

 

 

Frequently contain error

 

 

message text, since error text is

 

 

passed to script functions for

 

 

display if an error occurs. Do

 

 

not confuse these message with

 

 

actual error occurrences.

 

 

 

Additional Notes About Log Messages

ERROR messages—if dce_config is being run using a here-document (dce_config << input_file) or when using

dce_config -e config.env -c config.cmd, the environment variable EXIT_ON_ERROR should be set to y and exported to prevent errors from causing the here-document to get out of sync with dce_config.

Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Additional Notes About Log Messages, Priority Format Content

UX DCE Software specifications

HP UX DCE Software, or Hewlett-Packard UNIX Distributed Computing Environment, represents a significant tool in the realm of distributed system architecture. Designed primarily for enterprise environments, HP UX DCE enhances the reliability, scalability, and manageability of applications over diverse networked systems.

One of the main features of HP UX DCE is its ability to integrate various computing platforms, enabling seamless communication and resource sharing across distributed nodes. This facilitates the creation of complex applications that can operate on a multitude of systems, thus enhancing operational flexibility. DCE employs standardized interfaces, which means applications written for one platform can run on any other platform that supports DCE, promoting cross-platform compatibility.

In terms of technologies, HP UX DCE utilizes Remote Procedure Calls (RPC) as a core feature. This mechanism allows different applications to communicate and invoke procedures on remote systems as if they were local calls. Additionally, DCE includes a robust security model that incorporates Kerberos for authentication, ensuring that communication between nodes remains secure and protected against unauthorized access.

Another significant characteristic of HP UX DCE is its distributed file system, which allows for transparent file access across different machines. The DCE File System (DFS) provides a unified namespace and manages data replication and consistency across distributed storage resources. This reduces the complexity of data management and enhances data availability.

HP UX DCE also supports a variety of programming languages, making it accessible for developers accustomed to different coding environments. This versatility encourages widespread adoption and innovation, as developers can leverage existing skills to create distributed applications.

Furthermore, HP UX DCE is built for high availability, ensuring that critical applications remain responsive even in the face of hardware or network failures. Its inherent component redundancy and fault-tolerant architecture are designed to minimize downtime, which is essential for mission-critical applications in enterprise scenarios.

In conclusion, HP UX DCE Software provides a comprehensive framework for developing, deploying, and managing distributed applications. Its core features such as RPC support, a secure authentication mechanism, a robust file system, and cross-platform compatibility make it a vital resource for organizations aiming to leverage distributed computing effectively. As enterprises evolve, HP UX DCE stands out as an influential solution in the dynamic landscape of distributed environments.