ClearCase Reference Manual, Release 4.0, Windows

albd_server

Atria location broker daemon / ClearCase master server

APPLICABILITY

ClearCase (administrative command)

SYNOPSIS

Invoked by the Windows NT Service Contol Manager at system startup time

DESCRIPTION

Each ClearCase host runs an albd_server process (Atria location broker daemon), which starts up and dispatches messages to the following servers:

db_server	VOB database server, short-lived
vob_server	VOB data storage server, long-lived
vobrpc_server	Remote-access VOB database and data storage server, long-lived
promote_server	Derived object data storage server, short-lived
view_server	View server, long-lived
admin_server	Administrative support server; offloads functions from the albd_server

A ClearCase client program sends a request to an albd_server process (often, running on another host) to find the port number (socket address) of the server it wants to access. Thereafter, the client communicates directly with the specific server. If necessary, albd_server starts the server before passing its port number to the client.

STARTING THE LOCATION BROKER

ClearCase starts albd_server when you start ClearCase. A local administrator can also start albd_server manually from the ClearCase icon on Control Panel, from the Services Startup tab, or with the following command:

> net start albd

SERVICES FILE PORT ASSIGNMENT

When started, the albd_server looks for a port assignment in the file %SystemRoot%\System32\drivers\etc\services. If a port is not defined there, the albd_server uses port 371.

ALBD_SERVER CONFIGURATION FILE

albd_server reads configuration file ccase-home-dir\config\services\albd.conf during startup to determine which services to provide. Do not modify this file.

OTHER ALBD_SERVER FUNCTIONS

In addition to its other duties, albd_server performs the following functions:

On the networkwide license server host, albd_server fields license-verification requests from hosts throughout the network. In its role as the license server program, albd_server periodically consults the network's license database, which must be available locally in the Windows registry at HKEY_LOCAL_MACHINE\SOFTWARE\Atria\ClearCase\CurrentVersion\LicenseKeys. Use the Licensing tab in the ClearCase Properties dialog box (accessible through the ClearCase icon on the Windows Control Panel) to add or modify license keys.
See license.db and clearlicense for more information.
On the networkwide registry server host, albd_server fields requests for registry information from hosts throughout the network. In its role as the registry server program, albd_server periodically uses the network's storage registry files, which reside in ccase-home-dir\var\rgy on the registry server host.
See lsvob, lsview, and registry_ccase for more information.

FILES

system directory (for example, %SystemRoot%\system32)
ccase-home-dir\config\services\albd.conf

WINDOWS REGISTRY KEYS

HKEY_LOCAL_MACHINE\SOFTWARE\Atria\ClearCase\CurrentVersion\LicenseKeys