[ovirt-users] Storage latency message

[Chris Adams]

Once upon a time, Yaniv Kaul <ykaul at redhat.com> said:
> On Tue, Apr 11, 2017 at 3:57 PM, Chris Adams <cma at cmadams.net> wrote:
> > I've been getting an occasional message like:
> >
> >         Storage domain hosted_storage experienced a high latency of
> >         5.26121 seconds from host node3.
> >
> > I'm not sure what is causing them though.  I look at my storage
> > (EqualLogic iSCSI SAN) and storage network switches and don't see any
> > issues.
> >
> > When the above message was logged, node3 was not hosting the engine
> > (doesn't even have engine HA installed), nor was it the SPM, so why
> > would it have even been accessing the hosted_storage domain?
> >
> 
> All hosts are monitoring their access to all storage domains in the data
> center.

Okay.  Is there any more information about what this message actually
means though?  Is it read latency, write latency, a particular VM, etc.?

I can't find any issue at the network or SAN level, nor any load events
that correlate with the times oVirt logs the latency messages.

-- 
Chris Adams <cma at cmadams.net>