[ https://issues.apache.org/jira/browse/CASSANDRA-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis resolved CASSANDRA-3878. --------------------------------------- Resolution: Duplicate We're ripping out fadvise from compaction reads (CASSANDRA-4937), so that would seem to take care of that. > Allow posix_fadvise call to be skipped based on a configuration option > ---------------------------------------------------------------------- > > 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 > Labels: datastax_qa > > 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira