On Wed, Sep 29, 2010 at 7:12 PM, Miguel Di Ciurcio Filho <[email protected]> wrote:
Hi, > While playing with Ganeti and using KVM as the hypervisor, this error > occurred: > > r...@node01:~# gnt-instance modify -B memory=512M prcolor > Failure: prerequisites not met for this operation: > error type: insufficient_resources, error details: > This change will prevent the instance from starting, due to 107 MB of > memory missing on its primary node > > Then checking the correspondent primary node, I was playing manually > with KVM there and messing around with hugetlbfs. > > As I've reserved a lot of RAM to hugepages, there was actually no room > to accommodate the instance (it was down previously). > > It appears to me that Ganeti is not counting free hugepages as free > memory (I've greped the code). Plus, I could not find a way to pass > the parameter -mem-path to actually use the allocated hugepages for > the instance on the primary node. > Yes, we haven't worked on doing this. Could you file a bug requesting this? (patches are also welcome) :) Thanks, Guido
