Hello everyone,
I've been wondering if there is a way of listing all namespaces in a
RADOS pool in a way that is both human- and machine-readable, and is
more efficient than this:
rados -p <pool> ls --all -f json \
| jq -r "[.[] | .namespace] | unique"
There are of course several variations of this approach, but they all
seem to boil down to enumerating *all objects* and then picking out
their namespaces — which is, shall we say, impractical if a pool
contains millions of objects.
Does a fundamentally different option exist?
Cheers,
Florian
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