--- Gordan Bobic <gordan@xxxxxxxxxx> wrote:
> Ja S wrote:
> > --- Gordan Bobic <gordan@xxxxxxxxxx> wrote:
> >
> >> Ja S wrote:
> >>> Hi, All:
> >>>
> >>> Just want to get a clarification.
> >>>
> >>> When using GFS+DLM, will the locks of journals
> be
> >>> managed also by DLM in the same way as that for
> >> normal
> >>> data files?
> >> My understanding is that there is no locking on
> the
> >> journals across
> >> nodes except when a node gets fenced and it's
> >> journal needs to be
> >> replayed to ensure data is consistent. Each node
> has
> >> it's own journal.
> >
> > Thanks. Then what this "can't acquire the journal
> > glock:" error is about?
>
> I think the journals are allocated on a first-come
> first-served basis to
> the nodes as they connect to the shared storage.
> Each node locks it's
> own journal to ensure that it is marked as "in use".
> That's why you'll
> see that message at mount time. But I don't think
> there is any journal
> locking going on under normal operation.
Great thanks again.
Jas
--
Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster
