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On 07/02, Erlon Cruz wrote:
> That will depend on the Cinder/OS-brick iscsiadm versions right? Can you
> tell what are the versions from where the problem was fixed?
>
> Erlon
>

Hi,

Like you said it depends on your Cinder and OS-Brick versions, and the
open-iscsi package will be different depending on your distro, for RHOS
7.4 this is iscsi-initiator-utils version 6.2.0.874-2 or later.

Things working fine may also depend on your multipath and Cinder/Nova
configuration as well as LVM filters (if your deployment can have images
that have LVM).

I think that's all that need to be properly setup.

Cheers,
Gorka.

> 2018-02-07 8:27 GMT-02:00 Gorka Eguileor <geguileo at redhat.com>:
>
> > On 07/02, Rikimaru Honjo wrote:
> > > Hello,
> > >
> > > I'm planning to use cinder as glance store.
> > > And, I'll setup cinder to connect storage by iSCSI multipath.
> > >
> > > In this case, can I run glance-api and cinder-volume on the same node?
> > >
> > > In my understanding, glance-api will attach a volume to own node and
> > > write a uploaded image to the volume if glance backend is cinder.
> > > I afraid that the race condition of cinder-volume's iSCSI operations
> > > and glance-api's iSCSI operations.
> > > Is there possibility of occurring it?
> > > --
> > > _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> > > Rikimaru Honjo
> > > E-mail:honjo.rikimaru at po.ntt-tx.co.jp
> > >
> > >
> > >
> > > ____________________________________________________________
> > ______________
> > > OpenStack Development Mailing List (not for usage questions)
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> >
> > Hi,
> >
> > When properly set with the right configuration and the right system and
> > OpenStack packages, Cinder, OS-Brick, and Nova no longer have race
> > conditions with iSCSI operations anymore (single or multipathed), not
> > even with drivers that do "shared target".
> >
> > So I would assume that Glance won't have any issues either as long as
> > it's properly making the Cinder and OS-Brick calls.
> >
> > Cheers,
> > Gorka.
> >
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