Ceph

06/09/2017

09:54 AM CephFS Bug #19955: Too many stat ops when MDS trying to probe a large file

Later I found two more related problems that may need further discussion:
# Some tools(like fio) will set the size o... Sandy Xu

05/18/2017

01:14 AM CephFS Bug #19955: Too many stat ops when MDS trying to probe a large file

John Spray wrote:
> File size recovery should only happen when a client has failed to reconnect properly during the ... Sandy Xu

05/17/2017

03:29 AM CephFS Bug #19955 (Resolved): Too many stat ops when MDS trying to probe a large file

When MDS recovers, it may emit tons of `stat` ops to OSDs trying to probe a large file, which as a result prevents cl... Sandy Xu

04/25/2017

03:39 AM CephFS Bug #19755 (Resolved): MDS became unresponsive when truncating a very large file

We were trying to copy a very large file (7TB exactly) between two directories through Samba/CephFS, and cancelled it... Sandy Xu

03/07/2017

09:20 AM CephFS Bug #19204 (Resolved): MDS assert failed when shutting down

We encountered a failed assertion when trying to shutdown an MDS. Here is a snippet of the log:
> -14> 2017-01-22 ... Sandy Xu

08/12/2016

09:34 PM Ceph Revision f9637743 (ceph): rgw: add a method to purge all associate keys when removing a subuser

Fixes: #12890
When removing a subuser, make sure all of its keys, including the swift key and possible s3 keys, are ... Sandy Xu

02/17/2016

02:45 AM rgw Bug #14764: RGW: swift API 'swift stat' double counts objects

Probably a known issue, you may want to take a look at http://tracker.ceph.com/issues/13140
Sandy Xu

01/15/2016

11:12 AM Ceph Revision 0a4d1a41 (ceph): mon: add an independent option for max election time

add a new configure option mon_election_timeout, which is not dependent on mon_lease
Signed-off-by: Sangdi Xu <xu.sa... Sandy Xu

12/17/2015

09:30 AM Ceph Revision 42692630 (ceph): crush: fix the default type 0 name if it's not specified when decompiled

Change the type 0 name from "device" to "osd", just to make it consistent
Signed-off-by: Sangdi Xu <xu.sangdi@h3c.com> Sandy Xu

09:28 AM Ceph Revision 895bf8b8 (ceph): crushtool: set type 0 name "osd" for --build option

The crushmap built by crushtool cannot be used directly as the name of type 0 is not specified.
We may decompile the ... Sandy Xu