Hi,
I'm currently streaming data with nodetool rebuild on 2 nodes, each node is
streaming from different location. The problem is that it takes ~7 days to
stream 4Tb of data to 1 node, the speed on each side is ~150Mbit/s  so it
should take around
~2,5 days . Although there are resources on the destnodes and in the source
regions.
I've increased stream throughput, but its only affects outbound
connections.
Tested with iperf the bandwidth is 600Mibt/s from both sides. Last week
i've changed the CS from ST to LC because of huge sstables and compaction
of them is still ongoing.
How does rebuild command works ? Does it calculate the range then request
the needed sstables from that node and start streaming ? How is it possible
to speed up the streaming ?

Vitali.

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