On 21/01/2021 12:57, George Shuklin wrote:
I have hell of the question: how to make HEALTH_ERR status for a
cluster without consequences?
I'm working on CI tests and I need to check if our reaction to
HEALTH_ERR is good. For this I need to take an empty cluster with an
empty pool and do something. Preferably quick and reversible.
For HEALTH_WARN the best thing I found is to change pool size to 1, it
raises "1 pool(s) have no replicas configured" warning almost
instantly and it can be reverted very quickly for empty pool.
But HEALTH_ERR is a bit more tricky. Any ideas?
I found the way:
ceph osd set-full-ratio 0.0
instantly causing
health: HEALTH_ERR
full ratio(s) out of order
even on empty cluster. Problem solved.
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