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Andrew Kyle Purtell resolved HBASE-26814. ----------------------------------------- Hadoop Flags: Reviewed Resolution: Fixed > Default StoreHotnessProtector to off, with logs to guide when to turn it on > --------------------------------------------------------------------------- > > Key: HBASE-26814 > URL: https://issues.apache.org/jira/browse/HBASE-26814 > Project: HBase > Issue Type: Improvement > Reporter: Bryan Beaudreault > Assignee: Bryan Beaudreault > Priority: Major > Fix For: 2.5.0, 2.6.0, 3.0.0-alpha-3 > > > As discussed in HBASE-26522 and somewhat in HBASE-26575, > StoreHotnessProtector is too conservative. One can easily trigger > RegionTooBusyException on an otherwise idle regionserver with relatively > small amount of traffic. The idea behind this protection is good, but it > needs to take into account current load in order to warrant being enabled by > default. > Until it's improved as such, we should change it to default off. One thing we > can do to help drive usage would be to add warning logs when it would have > triggered. Operators who are diagnosing performance issues will naturally > look at the logs and see indication of a potential tool for mitigation. > cc [~andrew.purt...@gmail.com] -- This message was sent by Atlassian Jira (v8.20.1#820001)