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Pushing out the qbwrk.conf configuration to the Workers
After the qbwrk.conf file is modified on the Supervisor, one needs to push out the update to reconfigure the Workers. As Administrator (or sudo), from the "pfx/qube/sbin" directory, run: qbadmin worker –reconfigure This will push out the changes to the Wo…Database Repair
Performing a database repair is a more exhaustive check of the internal database structure, and so more time is required for each table compared to a simple health check. If a Database Health Check has not yet been performed since the QubeGUI has been sta…Passive preemption
Passive preemption will allow agenda items to finish before becoming preempted by higher priority subjobs. This presumes the job contains an agenda, otherwise it will be immediately preempted. How to set passive preemption To set the preemption policy to…Aggressive preemption
Aggressive preemption immediately kills a subjob so that a higher priority subjob can run instead. This preemption policy does not take into account the agenda, so any work performed before the preemption will be wasted. How to set aggressive preemption T…Centralized Jobtypes
Thought it is the easiest for small farms, one does not have to always install jobtypes locally on the Workers. They can be centrally located on a network file system. Set the worker_template_path to point to the location of the jobtypes (delimited by col…Use of an encrypted database_password
Use of an encrypted database_password in the qb.conf will prevent either the Database Health Check or the Database Repair options from actually be executed, since the QubeGUI has no way to decrypt the password and supply it to the mysqlcheck command-line.…Log Files
Qube produces a number of different log files, each serving a different purpose. These log files may be stored locally, on a shared file system or both. The log files are an important means to troubleshoot problems, and they serve to document executed job…Configuration Files
The Qube configuration files allow specify the settings for the Qube Supervisor, Workers, and Clients. These files are located in the following directories depending on the platform: Linux/OSX: /etc/ Windows XP/2003: C:\Windows\ Windows Vista/2008: C:\Pro…Client Configuration
Compared to the Worker, client configuration is a very simple process. About the only thing that requires configuration is the name of the Supervisor. The Supervisor setting can be explicitly set, or it can be determined using autodiscovery. Like the Work…Supervisor Logs
The Supervisor outputs log information to a file called supelog. By default, the file is located in: Linux/Mac OS X /var/log/supelog Windows XP/2003 C:\Program Files\pfx\qube\logs\supelog Windows Vista/2008/7C:\ProgramData\pfx\qube\logs\supelog Under Linu…