Lock manager startup on other Linux hosts

As of Rational® ClearCase® release 7.0.1, the lock manager process has been eliminated on hosts running the UNIX system and most versions of Linux. On those hosts, database access is controlled by the VOB's db_server process, as described in Configuring database locking parameters on hosts running the UNIX system and most versions of Linux.. This topic covers lock manager startup on those Linux® hosts that still use a lock manager.

On those hosts hosts running Linux that still use the lock manager, default lock manager startup options are defined in the startup script ccase-home-dir/etc/clearcase. To change these values, create a file named /var/adm/rational/clearcase/config/lockmgr.conf that includes a line in the following format:

LOCKMGR_OPTS = –f num –u num –q num

Supply the appropriate num values as described in lockmgr reference information. This file should be owned by root and have read-only access.

This file is preserved when a new version of Rational ClearCase is installed. When the file exists, the Rational ClearCase lock manager is started with the options defined in the file. Otherwise, it uses the default values for lock manager startup options.

The following syntax rules apply to /var/adm/rational/clearcase/config/lockmgr.conf:
  • A comment begins with a # character and extends to the end of the line.
  • White space can precede the LOCKMGR_OPTS label and can precede or follow the = character.
  • White space must precede each option (-f, –u, –q) and can separate the option from the specified num value.
  • Options that are not specified revert to default values. Incorrect options are ignored.
Parent topic: Configuring database locking parameters on hosts running the UNIX system and most versions of Linux.
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