search

uzh / vm-mad

Dynamically grow or shrink GridEngine clusters using cloud-based nodes
https://arxiv.org/abs/1302.2529
Apache License 2.0
3 stars 2 forks source link

enable/disable SGE queues on VM ready/stopped #14

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
The orchestrator should be able to tell the batch system scheduler
when a node becomes available/unavailable.

I think this requires a few modifications to the `Orchestraror` code
and the `BatchSystem` interface:

1. Modify the `BatchSystem` interface so that it has two additional
   methods `enable(nodename)` and `disable(nodename)`, which by
   default do nothing.

2. Implement the two methods in the `batchsys.GridEngine` class: they
   should run the appropriate `qmod -e` and `qmod -d` SGE commands.

3. Modify the `Orchestrator` code so that
   `self.batchsys.enable(nodename)` is called when a VM signals it's
   READY, and `batchsys.disable(nodename)` is called when a VM is
   about to be stopped (goes into STOPPING state).

Original issue reported on code.google.com by riccardo.murri@gmail.com on 26 Apr 2012 at 9:53