Allow posix_fadvise call to be skipped based on a configuration option
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Key: CASSANDRA-3878
URL: https://issues.apache.org/jira/browse/CASSANDRA-3878
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Rick Branson
Assignee: Rick Branson
It is sometimes desirable to skip the posix_fadvise() call performed on SSTable
files when Cassandra has JNA enabled, without disabling JNA as other
functionality is dependent on JNA such as the off-heap row cache. This can be
either for performance reasons, or to avoid bugs caused by faulty interactions
of the fadvise call with the underlying hardware and it's drivers.
The enhancement is to be able to disable the fadvise() call using an option in
the cassandra.yaml file.
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