Hi all, I have setup a ceph cluster in my lab recently, the configuration per my understanding should be okay, 4 OSD across 3 nodes, 3 replicas, but couple of PG stuck with state "active+undersized+degraded", I think this should be very generic issue, could anyone help me out?
Here is the details about the ceph cluster, $ ceph -v (jewel) ceph version 10.2.10 (5dc1e4c05cb68dbf62ae6fce3f0700e4654fdbbe) # ceph osd tree ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY -1 5.89049 root default -2 1.81360 host ceph3 2 1.81360 osd.2 up 1.00000 1.00000 -3 0.44969 host ceph4 3 0.44969 osd.3 up 1.00000 1.00000 -4 3.62720 host ceph1 0 1.81360 osd.0 up 1.00000 1.00000 1 1.81360 osd.1 up 1.00000 1.00000 # ceph health detail HEALTH_WARN 2 pgs degraded; 2 pgs stuck degraded; 2 pgs stuck unclean; 2 pgs stuck undersized; 2 pgs undersized pg 17.58 is stuck unclean for 61033.947719, current state active+undersized+degraded, last acting [2,0] pg 17.16 is stuck unclean for 61033.948201, current state active+undersized+degraded, last acting [0,2] pg 17.58 is stuck undersized for 61033.343824, current state active+undersized+degraded, last acting [2,0] pg 17.16 is stuck undersized for 61033.327566, current state active+undersized+degraded, last acting [0,2] pg 17.58 is stuck degraded for 61033.343835, current state active+undersized+degraded, last acting [2,0] pg 17.16 is stuck degraded for 61033.327576, current state active+undersized+degraded, last acting [0,2] pg 17.16 is active+undersized+degraded, acting [0,2] pg 17.58 is active+undersized+degraded, acting [2,0] # rados lspools rbdbench $ ceph osd pool get rbdbench size size: 3 Where can I get the details about the issue? Appreciate for any comments! Best Regards, Dave Chen
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