[
https://issues.apache.org/jira/browse/CASSANDRA-9302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15031474#comment-15031474
]
Stefania commented on CASSANDRA-9302:
-------------------------------------
I've implemented three more things:
* tests with failure injection, in a fashion similar to CASSANDRA-9304 - pull
request is [here|https://github.com/riptano/cassandra-dtest/pull/689].
* manual replica selection rather than relying on the driver TAR - we get
better performance because we can batch by replica, not just by primary key.
* ingest_rate parameter to control how many rows per second we feed to the
worker processes - this is required by CASSANDRA-9303 but it made sense to
change it here.
> Optimize cqlsh COPY FROM, part 3
> --------------------------------
>
> Key: CASSANDRA-9302
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9302
> Project: Cassandra
> Issue Type: Improvement
> Components: Tools
> Reporter: Jonathan Ellis
> Assignee: Stefania
> Priority: Critical
> Fix For: 2.1.x
>
>
> We've had some discussion moving to Spark CSV import for bulk load in 3.x,
> but people need a good bulk load tool now. One option is to add a separate
> Java bulk load tool (CASSANDRA-9048), but if we can match that performance
> from cqlsh I would prefer to leave COPY FROM as the preferred option to which
> we point people, rather than adding more tools that need to be supported
> indefinitely.
> Previous work on COPY FROM optimization was done in CASSANDRA-7405 and
> CASSANDRA-8225.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
