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Macro Variables
To simplify definition of templates as well as Worker configurations, the qbwrk.conf also supports the use of macro variables. These are in the format: $template.name "${template.name}" The template names self and this are reserved words and can be used t…Priority
The priority algorithm is a numeric priority queue. Normally, the priorities are established such that lower values are considered to have higher priority. For example, a job with priority 1 will have a higher priority than a job with priority 10. The def…Per-User and Per-Pgrp subjob limits
Qube 6.2 introduced per-user and per-pgrp subjob limits. The administrator may set these limits to pose a restriction on the number of subjobs that each user or pgrp may run on the farm at once. In addition to setting up global default values for these…Worker removal
A user must have Qube "admin" privileges to remove a worker. See User Permissions and User Permissions View for more info. Administrators may want to permanently remove a host from the farm. This is normally required if the host's responsibilities as a…Quick Setup of Per-User and Per-Pgrp Subjob Limits_
In the qb.conf file on the supervisor: set supervisor_default_user_subjob_limit and supervisor_default_pgrp_subjob_limit as needed, to set up default subjob limits for users and pgrps set supervisor_user_subjob_limits and supervisor_pgrp_subjob_limits as…Validating the qbwrk.conf
Once the qbwrk.conf file is edited, then check the file for validity. This can also be used to verify macros and inheritance templates. As Administrator (or sudo), from the "pfx/qube/sbin" directory, run qbconfigfile /etc/qbwrk.conf (for Linux, with other…Qube! Database Maintenance (Available only on the supervisor)
Qube! stores all job-related information (with the exception of the job logs) in a set of MySQL databases on the supervisor. When the supervisor host crashes, is powered off without being gracefully shut down, or runs out of disk space, individual tables…Details of Setting Up Per-User and Per-Pgrp Subjob Limits_
There are four parameters that may be set up in the qb.conf file on the supervisor to control the subjobs limits. The two parameters supervisor_default_user_subjob_limit and supervisor_default_pgrp_subjob_limit are used to set up the global default subjob…Job Preemption
Preemption is the mechanism by which the system tries to reach an equilibrium state where all jobs are running in the correct priority order. This equilibrium can be disturbed any time a high priority job is submitted to the queue. The Supervisor has the…Database Health Check
The health check is a quick way to ensure that all databases are intact. If errors are found within any tables in any databases, the names of the individual tables that contain these error conditions are cached, and a subsequent Database Repair will be pe…