Comments (2)
This error occurs when the osdmap id changes during information gathering phase.
Unfortunately, I think, Ceph has zero support for transactions/atomic operations for its management.
So in order for the script to get all needed infos, it does multiple ceph ... dump
commands. And since all these infos have to be combined, it's important that they're in sync. This is validated by comparing the osdmap id before and after the info gathering phase - when the ids don't match, something has changed, but due to the missing transaction support it's also impossible to figure out what changed reliably).
from ceph-balancer.
Nuts. It is precisely when the cluster is most busy that running tools like this are the most helpful.
from ceph-balancer.
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from ceph-balancer.