This is not a bug. The map command just says which PG/OSD an object maps to; it does not go out and query the osd to see if there actually is such an object. -Greg
On Tuesday, February 23, 2016, Vickey Singh <vickey.singh22...@gmail.com> wrote: > Hello Guys > > I am getting wired output from osd map. The object does not exists on pool > but osd map still shows its PG and OSD on which its stored. > > So i have rbd device coming from pool 'gold' , this image has an object > 'rb.0.10f61.238e1f29.000000002ac5' > > The below commands verifies this > > *[root@ceph-node1 ~]# rados -p gold ls | grep -i > rb.0.10f61.238e1f29.000000002ac5* > *rb.0.10f61.238e1f29.000000002ac5* > *[root@ceph-node1 ~]#* > > This object lives on pool gold and OSD 38,0,20 , which is correct > > *[root@ceph-node1 ~]# ceph osd map gold rb.0.10f61.238e1f29.000000002ac5* > *osdmap e1357 pool 'gold' (1) object 'rb.0.10f61.238e1f29.000000002ac5' -> > pg 1.11692600 (1.0) -> up ([38,0,20], p38) acting ([38,0,20], p38)* > *[root@ceph-node1 ~]#* > > > Since i don't have object 'rb.0.10f61.238e1f29.000000002ac5' in data and > rbd pools , rados ls will not list it. Which is expected. > > *[root@ceph-node1 ~]# rados -p data ls | grep -i > rb.0.10f61.238e1f29.000000002ac5* > *[root@ceph-node1 ~]# rados -p rbd ls | grep -i > rb.0.10f61.238e1f29.000000002ac5* > > > But , how come the object is showing in osd map of pool data and rbd. > > *[root@ceph-node1 ~]# ceph osd map data rb.0.10f61.238e1f29.000000002ac5* > *osdmap e1357 pool 'data' (2) object 'rb.0.10f61.238e1f29.000000002ac5' -> > pg 2.11692600 (2.0) -> up ([3,51,29], p3) acting ([3,51,29], p3)* > *[root@ceph-node1 ~]#* > > *[root@ceph-node1 ~]# ceph osd map rbd rb.0.10f61.238e1f29.000000002ac5* > *osdmap e1357 pool 'rbd' (0) object 'rb.0.10f61.238e1f29.000000002ac5' -> > pg 0.11692600 (0.0) -> up ([41,20,3], p41) acting ([41,20,3], p41)* > *[root@ceph-node1 ~]#* > > > In ceph, object is unique and belongs to only one pool. So why does it > shows up in all pool's osd map. > > Is this some kind of BUG in Ceph > > Ceph Hammer 0.94.5 > CentOS 7.2 >
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