Re: [ceph-users] Question about RADOS object consistency

2014-06-18 Thread Gregory Farnum
On Wed, Jun 18, 2014 at 12:07 PM, Ke-fei Lin wrote: > 2014-06-18 22:44 GMT+08:00 Gregory Farnum : >> On Tue, Jun 17, 2014 at 9:46 PM, Ke-fei Lin wrote: >>> 2014-06-18 1:28 GMT+08:00 Gregory Farnum : On Tue, Jun 17, 2014 at 3:22 AM, Ke-fei Lin wrote: > Hi list, > > How does RADOS

Re: [ceph-users] Question about RADOS object consistency

2014-06-18 Thread Ke-fei Lin
2014-06-18 22:44 GMT+08:00 Gregory Farnum : > On Tue, Jun 17, 2014 at 9:46 PM, Ke-fei Lin wrote: >> 2014-06-18 1:28 GMT+08:00 Gregory Farnum : >>> On Tue, Jun 17, 2014 at 3:22 AM, Ke-fei Lin wrote: Hi list, How does RADOS check an object and its replica are consistent? Is there >>>

Re: [ceph-users] Question about RADOS object consistency

2014-06-18 Thread Gregory Farnum
On Tue, Jun 17, 2014 at 9:46 PM, Ke-fei Lin wrote: > 2014-06-18 1:28 GMT+08:00 Gregory Farnum : >> On Tue, Jun 17, 2014 at 3:22 AM, Ke-fei Lin wrote: >>> Hi list, >>> >>> How does RADOS check an object and its replica are consistent? Is there >>> a checksum in object's metadata or some other mech

Re: [ceph-users] Question about RADOS object consistency

2014-06-17 Thread Ke-fei Lin
2014-06-18 1:28 GMT+08:00 Gregory Farnum : > On Tue, Jun 17, 2014 at 3:22 AM, Ke-fei Lin wrote: >> Hi list, >> >> How does RADOS check an object and its replica are consistent? Is there >> a checksum in object's metadata or some other mechanisms? Does the >> mechanism depend on OSD's underlying fi

Re: [ceph-users] Question about RADOS object consistency

2014-06-17 Thread Gregory Farnum
On Tue, Jun 17, 2014 at 3:22 AM, Ke-fei Lin wrote: > Hi list, > > How does RADOS check an object and its replica are consistent? Is there > a checksum in object's metadata or some other mechanisms? Does the > mechanism depend on > OSD's underlying file system? It does not check consistency on rea

[ceph-users] Question about RADOS object consistency

2014-06-17 Thread Ke-fei Lin
Hi list, How does RADOS check an object and its replica are consistent? Is there a checksum in object's metadata or some other mechanisms? Does the mechanism depend on OSD's underlying file system? And what would happen if a corrupted object being readed (like a corrupted block in traditional fil