On Sat, Sep 28, 2019 at 9:55 AM Sage Weil <sweil@redhat.com> wrote:
>
> This just merged:
>
>         https://github.com/ceph/ceph/pull/30581
>
> which means that it's possible to construct cls methods that do updates
> *and* return >0 return codes and (limited) data payload.  You need to set
> the WRITEVEC flag on the rados op for it to work, in order to avoid
> breaking current users of requests like [stat, write] or [cmpxattr,
> write], since those guard methods occasionally return data.
>
> Enjoy!

Finally!

Next iteration should be to look at current objclass users and
identify places that can take advantage of this. I know that for rgw
the otp objclass can surely benefit for it, and we may want to take a
look at the entire versioned objects stuff. I'm sure there are many
other places where this can be useful.

Thanks,
Yehuda

> sage
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