[Gluster-devel] GF_PARENT_DOWN on SIGKILL

[Pranith Kumar Karampuri]

On Fri, Jul 22, 2016 at 7:07 PM, Jeff Darcy <jdarcy at redhat.com> wrote:

> > Gah! sorry sorry, I meant to send the mail as SIGTERM. Not SIGKILL. So
> xavi
> > and I were wondering why cleanup_and_exit() is not sending GF_PARENT_DOWN
> > event.
>
> OK, then that grinding sound you hear is my brain shifting gears.  ;)  It
> seems that cleanup_and_exit will call xlator.fini in some few cases, but
> it doesn't do anything that would send notify events.  I'll bet the answer
> to "why" is just that nobody thought of it or got around to it.  The next
> question I'd ask is: can you do what you need to do from ec.fini instead?
> That would require enabling it in should_call_fini as well, but otherwise
> seems pretty straightforward.
>
> If the answer to that question is no, then things get more complicated.
> Can we do one loop that sends GF_EVENT_PARENT_DOWN events, then another
> that calls fini?  Can we just do a basic list traversal (as we do now for
> fini) or do we need to do something more complicated to deal with cluster
> translators?  I think a separate loop doing basic list traversal would
> work, even with brick multiplexing, so it's probably worth just coding it
> up as an experiment.
>

I don't think we need any list traversal because notify sends it down the
graph. I guess I will start the experiment then.


-- 
Pranith
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