How does compaction_throughput relate to memory usage?
It reduces the rate of memory allocation.
e.g. Say normally ParNew can keep up with the rate of memory usage without
stopping for too long: so the rate of promotion is low'ish and every thing is
allocated to Eden. If the allocation rate
replicas but to ensure we read at least one newest value as long as write
quorum succeeded beforehand and W+R N.
This is correct.
It's not that a quorum of nodes agree it's that a quorum of nodes participate.
If a quorum participate in both the write and read you are guaranteed that one