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https://issues.apache.org/jira/browse/CASSANDRA-9304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14970961#comment-14970961
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Brian Hess commented on CASSANDRA-9304:
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[~Stefania] have you re-run the benchmark that [~dkua] performed above (or
something similar) - specifically, comparing the "old version" to this new
version (and to the cassandra-unloader
(https://github.com/brianmhess/cassandra-loader))? What performance
improvement do we see?
> COPY TO improvements
> --------------------
>
> Key: CASSANDRA-9304
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9304
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Stefania
> Priority: Minor
> Labels: cqlsh
> Fix For: 3.x, 2.1.x, 2.2.x
>
>
> COPY FROM has gotten a lot of love. COPY TO not so much. One obvious
> improvement could be to parallelize reading and writing (write one page of
> data while fetching the next).
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