Planning and Configuring HP DCE 1.7

8-2 Planning and Conﬁguring HP DCE 1.7

HP DCE Measurement Service

Overview of DMS

DMS provides performance instrumentation for DCE servers and for the

server side of applications that use DCE Remote Procedure Calls (RPCs).

When DMS is enabled, it collects data about RPCs that execute in the

target process. The collected data is actually displayed using HP

GlancePlus.

HP GlancePlus is a performance monitoring tool that provides visual

information to help you identify potential or existing problems involving

a system’s CPU, memory, or LAN utilization. You can use GlancePlus to

deﬁne critical processing thresholds and to set alarms that are triggered

when the targets are approached. For information about HP GlancePlus,

see Getting Started with GlancePlus and the GlancePlus online help. You

can access the GlancePlus online help either from GlancePlus or from

the Help Manager on the Front Panel.

DMS is based on the Open Software Foundation RFC 33.0 Standardized

Performance Instrumentation and Interface Speciﬁcation for Monitoring

DCE-Based Applications (July 1995). DMS provides measurement of

resource utilization (such as response time of components, error counts

and rates, service counts and rates, queuing behavior, and so forth) and

processing time (such as service time, queuing time, etc.) for DCE RPCs.

DMS Restriction

DMS has the following restriction:

A server runs as root if it is started by a process running as root or if it

is owned by root and the setuid permission bit is set.

NOTE As of HP DCE 1.6, DMS can be enabled only for servers that run as root.

Applications servers that do not run as root are not displayed in the

DCE information ﬁelds of HP GlancePlus.

CAUTION Do not run a server as root unless the server was designed to run as

root.