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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