[ https://issues.apache.org/jira/browse/CASSANDRA-4292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yuki Morishita updated CASSANDRA-4292: -------------------------------------- Attachment: 4292-v4.txt Attaching v4. This version is based on v2 but without Executors. DBT is still used to track task count and load for data directories. Benchmark result will follow... > Improve JBOD loadbalancing and reduce contention > ------------------------------------------------ > > Key: CASSANDRA-4292 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4292 > Project: Cassandra > Issue Type: Improvement > Components: Core > Reporter: Jonathan Ellis > Assignee: Yuki Morishita > Fix For: 1.2.0 > > Attachments: 4292.txt, 4292-v2.txt, 4292-v3.txt, 4292-v4.txt > > > As noted in CASSANDRA-809, we have a certain amount of flush (and compaction) > threads, which mix and match disk volumes indiscriminately. It may be worth > creating a tight thread -> disk affinity, to prevent unnecessary conflict at > that level. > OTOH as SSDs become more prevalent this becomes a non-issue. Unclear how > much pain this actually causes in practice in the meantime. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira