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From "David Kua (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9304) COPY TO improvements
Date Thu, 30 Jul 2015 00:34:08 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14646980#comment-14646980
] 

David Kua commented on CASSANDRA-9304:
--------------------------------------

[~Stefania] thank you!

I've updated the 9304 branch to resolve most of the points you wrote. I still need to test
capping the number of processes at 4. 12 jobs was just the number of jobs that could be chained
at once before the cluster would fail for me. However I was testing within a vagrant box and
will be testing on my base machine soon. I couldn't think of a better dynamic number :/

> 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: David Kua
>            Priority: Minor
>              Labels: cqlsh
>             Fix For: 2.1.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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