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https://issues.apache.org/jira/browse/CASSANDRA-9303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15081092#comment-15081092
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Stefania commented on CASSANDRA-9303:
-------------------------------------
I've also performed a little bit more work:
* Removed the WARN for UNLOGGED batches with multiple partitions introduced by
CASSANDRA-9399 _if the partitions are only local_.
* Optimized {{split_batches}} to first batch by partition key, if at least two
rows have the same partition key, and batch by replica only those rows without
common partition keys. This ensures we optimize single insertions server side
per partition key and it saves us the cost of accessing the token map to work
out the replica if we have common partition keys.
* Ensured that {{DCAwareRoundRobinPolicy}} gets the data center name to avoid a
WARN.
* Applied a workaround for CASSANDRA-10938.
> Match cassandra-loader options in COPY FROM
> -------------------------------------------
>
> Key: CASSANDRA-9303
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9303
> Project: Cassandra
> Issue Type: New Feature
> Components: Tools
> Reporter: Jonathan Ellis
> Assignee: Stefania
> Priority: Critical
> Fix For: 2.1.x, 2.2.x, 3.0.x, 3.x
>
> Attachments: dtest.out
>
>
> https://github.com/brianmhess/cassandra-loader added a bunch of options to
> handle real world requirements, we should match those.
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