[ceph-users] Ceph backfill problem

2018-09-20 Thread Chen Allen
Hi there, Has anyone experienced below? 2 of OSD server was down, after bring up 2 of servers, I brought 52 OSD's in with just weight of 0.05, but it causing huge backfilling load, I saw so many blocked requests and a number of pg stuck inactive. some of servers was impact. so I stopped backfillin

Re: [ceph-users] Ceph backfill problem

2018-09-20 Thread Matthew H
Without knowing more about the underlying hardware, you likely are reaching some type of IO resource constraint. Are your journals colocated or non-colocated? How fast is your backend OSD storage device? You may also want to look at setting the norebalance flag. Good luck! > On Sep 20, 2018,

Re: [ceph-users] Ceph backfill problem

2018-09-20 Thread Konstantin Shalygin
Has anyone experienced below? 2 of OSD server was down, after bring up 2 of servers, I brought 52 OSD's in with just weight of 0.05, but it causing huge backfilling load, I saw so many blocked requests and a number of pg stuck inactive. some of servers was impact. so I stopped backfilling by mark