nodetool info -Displays node-level
info.
nodetool ring -Displays info on nodes
on the ring.
nodetool cfstats -Displays Column
Family statistics.
nodetool tpstats -Displays what
operations Cassandra is doing right now.
nodetool netstats -Displays streaming
information.
nodetooldrain -Flushes Memtables to
SSTables on disk and stops accepting writes.
Useful before a restart to
make startup quicker(no Commit Log to replay)
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