On Tue, Apr 25, 2017 at 03:38:38PM +0200, Xose Vazquez Perez wrote:
> On 03/12/2009 07:38 PM, Benjamin Marzinski wrote:
> ^^^^ Old patch.
>
> > Even when the last path of a multipath device is deleted, it can't be
> > removed until all the queued IO is flushed. For devices that have
> > no_path_retry set to queue, this doesn't automatically happen.
> >
> > This patch adds a "flush_on_last_del" config file option, that causes the
> > multipath device to automatically turn off queueing when the last path is
> > deleted. It also adds the "disablequeueing" and "restorequeueing"
> > multipathd cli commands.
> >
> > Signed-off-by: Benjamin Marzinski <[email protected]>
> > [...]
> > diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
> > index 43611ff..c1bc591 100644
> > --- a/libmultipath/propsel.c
> > +++ b/libmultipath/propsel.c
> > @@ -279,6 +279,10 @@ select_prio (struct path * pp)
> > extern int
> > select_no_path_retry(struct multipath *mp)
> > {
> > + if (mp->flush_on_last_del == FLUSH_IN_PROGRESS) {
> > + condlog(0, "flush_on_last_del in progress");
> ^^^^
> If flush is done per LUN, it should be added a prefix(WWID or alias).
Yep. I can send a patch for this.
Thanks.
-Ben
>
> > + mp->no_path_retry = NO_PATH_RETRY_FAIL;
> > + }
> > if (mp->mpe && mp->mpe->no_path_retry != NO_PATH_RETRY_UNDEF) {
> > mp->no_path_retry = mp->mpe->no_path_retry;
> > condlog(3, "%s: no_path_retry = %i (multipath setting)",
> > @@ -368,3 +372,31 @@ select_pg_timeout(struct multipath *mp)
> > condlog(3, "pg_timeout = NONE (internal default)");
> > return 0;
> > }
> Thank you.
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