Details
-
Task
-
Status: Resolved
-
Minor
-
Resolution: Unresolved
-
6.6.0
-
None
-
DOC-2020-S16-Aug23, DOC-2020-S17-Sep06
-
1
Description
Docs state that "These settings give items from active vBuckets a 40% chance of ejection; and give items from replica vBuckets a 60% chance of ejection." which is no longer the case. Couchbase Server ejects replica buckets first, following the introduction of the HiFi algorithm.
Hi Tony Hillman,
OK, this feels sensible for now - remove the 60/40 reference so that we are just stating when ejection will take place (i.e. between the watermarks), and how to control that (how to adjust the watermarks).
We do though need a better description of the specifics of the ejection policy and the NRU method, and how the Read/Write ratio affects this.
That sentence in particular is confusing as changing the watermarks has no effect on what is ejected.