> -----Original Message----- > From: ceph-devel-ow...@vger.kernel.org [mailto:ceph-devel- > ow...@vger.kernel.org] On Behalf Of Chen, Xiaoxi > Sent: Friday, October 16, 2015 8:26 AM > To: Xusangdi > Cc: ceph-devel@vger.kernel.org > Subject: RE: chooseleaf may cause some unnecessary pg migrations > > How did you measure "help performance" ? > > In your case , the OSD is in "down" but not "out" in osdmap > > Maybe extend the osdmaptool to support "mark osd out" could do the test?
Downed OSDs are marked as out after around 5 minutes (depends on configuration). With best regards / Pozdrawiam Piotr Dałek
