Considering disk usage is a tricky one. Compacted SSTables files will remain on
disk until either there is not enough space, or the JVM GC runs. To measure the
live space use the Space used (live) from the CFStats. Space used (total)
includes the space which has been compacted and not yet
As for static disk usage i would add this:
test: df -kh
description: run test after compaction (check GCGraceSeconds in
storage-conf.xml) as only then data is expunged permanently, run on data
disk, assuming here commitlog disk is separated from data dir.
green gauge: used_space 30% of disk
Hi
I'm trying to predict when my cluster would soon be needing new nodes
added, i want a continuous graph telling my of my cluster health so
that when i see my cluster becomes more and more busy (I want numbers
measurments) i would be able to know i need to start purchasing more
machines and get
