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https://issues.apache.org/jira/browse/CASSANDRA-12017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Philip Thompson updated CASSANDRA-12017:
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Fix Version/s: 3.x
> Allow configuration of inter DC compression
> --------------------------------------------
>
> Key: CASSANDRA-12017
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12017
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Thom Valley
> Fix For: 3.x
>
>
> With larger and more extensively geographically distributed clusters, users
> are beginning to need the ability to reduce bandwidth consumption as much as
> possible.
> With larger workloads, the limits of even large intercontinental data links
> (55MBps is pretty typical) are beginning to be stretched.
> InterDC SSL is currently hard coded to use the fastest (not highest)
> compression settings. LZ4 is a great option, but being able to raise the
> compression at the cost of some additional CPU may save as much as 10%
> (perhaps slightly more depending on the data). 10% of a 55MBps link, if
> running at or near capacity is substantial.
> This also has a large impact on the overhead and rate possible for
> instantiating new DCs as well as rebuilding a DC after a failure.
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