3 commits

Author	SHA1	Message	Date
Pradyumna Kaushik	9599588fb5	formatted code.	2018-09-23 17:49:08 -04:00
Pradyumna Kaushik	c31bf8db01	BUG Fix1: taskID creation in taskUtils#initTaskResourceRequirements. BUG Fix2: Converted value in utilities/trackResourceUsage#TrackResourceUsage#perHostResourceAvailability to be a pointer to ResourceCount.	2018-09-23 17:46:38 -04:00
Pradyumna Kaushik	657dc8df93	Track resource usage across the cluster. Created utility in utilities/ to track the total and the unused resources for each host in the cluster. Added utility to def/taskUtils.go to retrieve the resource requirement for a given taskID. Decoupled the code, to launch a list of tasks on a set of offerIDs, to schedulers/helpers.go and updated all the scheduling policies to call this function instead of directly calling mesos.SchedulerDriver#LaunchTasks. The resource availability of the cluster is updated at 2 stages -- 1. When the tasks are about to be launched (in schedulers/helpers.go#LaunchTasks), the scheduling policy switching logic will be able to adhere to the update in the resource availability due to the JUST launched tasks and 2. when a terminal status update is received for a task (in schedulers/base.go#statusUpdate).	2018-09-23 17:44:36 -04:00