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https://issues.apache.org/jira/browse/CASSANDRA-3045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158635#comment-13158635
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Brandon Williams commented on CASSANDRA-3045:
---------------------------------------------
bq. are there any benchmarks or is there anything anecdotal about performance?
Using the simplest job possible (copying a CF, map-only) I see a 20-25% gain.
I suspect this is read-limited though and if you're generating the output on a
hadoop cluster and loading it into a cassandra cluster (ie, not colocated),
this will be even faster, but creating such a workload is a bit too much work
for me to test. If anyone has an existing case like this, I'd love for them to
test and chime in.
> Update ColumnFamilyOutputFormat to use new bulkload API
> -------------------------------------------------------
>
> Key: CASSANDRA-3045
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3045
> Project: Cassandra
> Issue Type: Improvement
> Components: Hadoop
> Reporter: Jonathan Ellis
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-Remove-gossip-SS-requirement-from-BulkLoader.txt,
> 0002-Allow-DD-loading-without-yaml.txt,
> 0003-hadoop-output-support-for-bulk-loading.txt
>
>
> The bulk loading interface added in CASSANDRA-1278 is a great fit for Hadoop
> jobs.
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