Re: [ceph-users] Cluster Re-balancing

2018-04-19 Thread Monis Monther
Hi Casper, Thank you for the response, problem is solved now. After some searching, it turned out to be that after Luminous, setting mon_osd_backfillfull_ratio and mon_osd_nearfull_ratio do not take effect anymore. This is because these settings are being read from the OSD map and the commands "

Re: [ceph-users] Cluster Re-balancing

2018-04-18 Thread Caspar Smit
Hi Monis, The settings you mention do not prevent data movement to overloaded OSD's, they are a threshold when CEPH warns when an OSD is nearfull or backfillfull. No expert on this but setting backfillfull lower then nearfull is not recommended, the nearfull state should be reached first in stead

[ceph-users] Cluster Re-balancing

2018-04-18 Thread Monis Monther
Hi, We are running a cluster with ceph luminous 12.2.0. Some of the OSDs are getting full and we are running ceph osd reweight-by-utilization to re-balance the OSDs. We have also set mon_osd_backfillfull_ratio 0.8 (This is to prevent moving data to an overloaded OSD when re-weighting) mon_osd_nea