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Kb156

Emulab FAQ: Testbed Operations: How do I forcibly terminate an experiment when things are wedged?

Emulab FAQ: Testbed Operations: How do I forcibly terminate an experiment when things are wedged?

> I've got an experiment (created in group "ddos" with name "pruned" by
> Brett Wilson) that seems to be in some wedged
> state.  I can't cancel swap-in nor terminate it.

The trick on this is to:

  select pid,eid,state,expt_locked from experiments where
		expt_locked is not NULL;

to see what experiments are wedged, and how they are wedged.

Typically, you just put the experiment into the "active" state and clear expt_locked.

   update experiments set state='active',expt_locked=NULL
	where pid='foo' and eid='bar';

Then you can run a swapout on the experiment again. This works if the experiment wedged on swapin or swapout (activating or swapping).