I confirm what Christophe said.
I always ran them in parallel without any problem, really. Historically it
was using only one compactor and impact in my clusters have always been
acceptable.
Nonetheless, newer Cassandra versions allow multiple compactor to work in
parallel during cleanup and this
Hi Mikhail,
Nodetool cleanup can add a fair amount of extra load (mostly IO) on your
Cassandra nodes. Therefore it is recommended to run it during lower cluster
usage, and one node at a time, in order to limit the impact on your
cluster. There are no technical limitations that would prevent you t
