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https://issues.apache.org/jira/browse/CASSANDRA-4663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15340379#comment-15340379
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Jason Brown commented on CASSANDRA-4663:
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FWIW, the work I'm doing in #8457 (move internode messaging to netty) will need
to pull along changing the streaming subsystem to netty, as well. I'm currently
working on that (it can and will be a separate ticket from #8457), and I've
been thinking about the entire streaming workflow, including sending multiple
files in parallel. In my estimation, there are assumptions baked into the
existing streaming workflow that makes sending files in parallel a non-trivial
task; however, that does not mean it's impossible nor potentially beneficial,
as my work is targeting 4.0.
> Streaming sends one file at a time serially.
> ---------------------------------------------
>
> Key: CASSANDRA-4663
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4663
> Project: Cassandra
> Issue Type: Improvement
> Reporter: sankalp kohli
> Priority: Minor
>
> This is not fast enough when someone is using SSD and may be 10G link. We
> should try to create multiple connections and send multiple files in
> parallel.
> Current approach under utilize the link(even 1G).
> This change will improve the bootstrapping time of a node.
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