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Hello, We have small cluster, initially on 4 hosts (1
osd per host, 8tb each) with erasure-coding for data-pool (k=3
m=1). After some time I have added one more small host (1 osd, 2tb). Ceph has synced fine. Then I have powered off one of first 8tb hosts
and terminated it. Also removed from crush map and basically
simulating that OSD has died. But no matter what - CEPH stays in
HEALTH_WARN state and indicate incomplete PG, reduced data availability,
pgs inactive and incomplete and also slow requests (even though
we are not writing there right now). Used disk space is small, just several gigabytes. WIth this test scenario I would expect, that Ceph would recalculate missing data from removed OSD and after some time become healthy again. This did not happen automatically. Is there
any special command for this? Is there any specific procedure to
recalculate the data? We are testing on Luminous and Bluestore, CephFS. Anton. |
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