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https://issues.apache.org/jira/browse/CASSANDRA-9304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010185#comment-15010185
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Stefania commented on CASSANDRA-9304:
-------------------------------------
I've implemented deterministic failure injection pretty much as you suggested
except I've encoded a dictionary as json in an environment variable rather than
using multiple environment variables, see the [latest
commit|https://github.com/stef1927/cassandra/commit/9a8098668498c5959d588bc867495331aa05f6a6]
on the 2.1 branch.
I've also recreated the 2.2+ branches with a clean merge all the way up to
trunk.
The proposed dtests are in the [latest
commit|https://github.com/stef1927/cassandra-dtest/commit/ffbebd88cfba16759f2f61e3a0790625ca12feaf]
of my [dtest branch|https://github.com/stef1927/cassandra-dtest/commits/9304].
I'll wait for your OK before creating a pull request.
> COPY TO improvements
> --------------------
>
> Key: CASSANDRA-9304
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9304
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Assignee: Stefania
> Priority: Minor
> Labels: cqlsh
> Fix For: 2.1.x, 2.2.x, 3.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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