Brandon Williams created CASSANDRA-11351:
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Summary: rethink stream throttling logic
Key: CASSANDRA-11351
URL: https://issues.apache.org/jira/browse/CASSANDRA-11351
Project: Cassandra
Issue Type: Improvement
Reporter: Brandon Williams
Currently, we throttle steaming from the outbound side, because throttling from
the inbound side is thought as not doable. This creates a problem because the
total stream throughput is based on the number of nodes involved, so based on
the operation to be performed it can vary. This creates operational overhead,
as the throttle has to be constantly adjusted.
I propose we flip this logic on its head, and instead limit the total inbound
throughput. How? It's simple: we ask. Given a total inbound throughput of
200Mb, if a node is going to stream from 10 nodes, it would simply tell the
source nodes to only stream at 20Mb/s when asking for the stream, thereby never
going over the 200Mb inbound limit.
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