diff mbox

libceph: don't set weight to IN when OSD is destroyed

Message ID 1488825838-11576-1-git-send-email-idryomov@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ilya Dryomov March 6, 2017, 6:43 p.m. UTC
Since ceph.git commit 4e28f9e63644 ("osd/OSDMap: clear osd_info,
osd_xinfo on osd deletion"), weight is set to IN when OSD is deleted.
This changes the result of applying an incremental for clients, not
just OSDs.  Because CRUSH computations are obviously affected,
pre-4e28f9e63644 servers disagree with post-4e28f9e63644 clients on
object placement, resulting in misdirected requests.

Mirrors ceph.git commit a6009d1039a55e2c77f431662b3d6cc5a8e8e63f.

Fixes: 930c53286977 ("libceph: apply new_state before new_up_client on incrementals")
Link: http://tracker.ceph.com/issues/19122
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
 net/ceph/osdmap.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Sage Weil March 6, 2017, 7:02 p.m. UTC | #1
On Mon, 6 Mar 2017, Ilya Dryomov wrote:
> Since ceph.git commit 4e28f9e63644 ("osd/OSDMap: clear osd_info,
> osd_xinfo on osd deletion"), weight is set to IN when OSD is deleted.
> This changes the result of applying an incremental for clients, not
> just OSDs.  Because CRUSH computations are obviously affected,
> pre-4e28f9e63644 servers disagree with post-4e28f9e63644 clients on
> object placement, resulting in misdirected requests.
> 
> Mirrors ceph.git commit a6009d1039a55e2c77f431662b3d6cc5a8e8e63f.
> 
> Fixes: 930c53286977 ("libceph: apply new_state before new_up_client on incrementals")
> Link: http://tracker.ceph.com/issues/19122
> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
> ---

Reviewed-by: Sage Weil <sage@redhat.com>

>  net/ceph/osdmap.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
> index cc22dd282a3e..ffe9e904d4d1 100644
> --- a/net/ceph/osdmap.c
> +++ b/net/ceph/osdmap.c
> @@ -1379,7 +1379,6 @@ static int decode_new_up_state_weight(void **p, void *end,
>  		if ((map->osd_state[osd] & CEPH_OSD_EXISTS) &&
>  		    (xorstate & CEPH_OSD_EXISTS)) {
>  			pr_info("osd%d does not exist\n", osd);
> -			map->osd_weight[osd] = CEPH_OSD_IN;
>  			ret = set_primary_affinity(map, osd,
>  						   CEPH_OSD_DEFAULT_PRIMARY_AFFINITY);
>  			if (ret)
> -- 
> 2.4.3
> 
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diff mbox

Patch

diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index cc22dd282a3e..ffe9e904d4d1 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1379,7 +1379,6 @@  static int decode_new_up_state_weight(void **p, void *end,
 		if ((map->osd_state[osd] & CEPH_OSD_EXISTS) &&
 		    (xorstate & CEPH_OSD_EXISTS)) {
 			pr_info("osd%d does not exist\n", osd);
-			map->osd_weight[osd] = CEPH_OSD_IN;
 			ret = set_primary_affinity(map, osd,
 						   CEPH_OSD_DEFAULT_PRIMARY_AFFINITY);
 			if (ret)