Method for authorizing lock permission and distributed lock manager
The embodiment of the invention provides a method for authorizing lock permission and a distributed lock manager, and aims to increase the authorizing efficiency of a lock resource manager in a distributed system for requested lock permission. The method comprises the following steps: receiving a lock request, and acquiring the lock permission requested by the lock request; when a judgment indicating that the requested lock permission does not conflict with the highest level of authorized lock permission recorded in the distributed lock manager is made according to a lock permission compatibility list, authorizing the requested lock permission; and returning the requested lock permission.
We present here a study for a scheduler which cooperates with the queueing system TORQUE and is tailored to the needs of a HEP-dominated large Grid site with around 10000 jobs slots. Triggered by severe scaling problems of MAUI, a scheduler, referred to as MYSCHED, was developed and put into operation. We discuss conceptional aspects as well as experiences after almost two years of running.