Investigate improving the dynamic snitch with reservoir sampling
----------------------------------------------------------------
Key: CASSANDRA-4038
URL: https://issues.apache.org/jira/browse/CASSANDRA-4038
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Brandon Williams
Assignee: Brandon Williams
Fix For: 1.2
Dsnitch's UPDATES_PER_INTERVAL and WINDOW_SIZE are chosen somewhat arbitrarily.
A better fit may be something similar to Metric's ExponentiallyDecayingSample,
where more recent information is weighted heavier than past information, and
reservoir sampling would also be an efficient way of keeping a statistically
significant sample rather than refusing updates after UPDATES_PER_INTERVAL and
only keeping WINDOW_SIZE amount.
--
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
