[ https://issues.apache.org/jira/browse/CASSANDRA-11517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joel Knighton updated CASSANDRA-11517: -------------------------------------- Status: Ready to Commit (was: Patch Available) > o.a.c.utils.UUIDGen could handle contention better > -------------------------------------------------- > > Key: CASSANDRA-11517 > URL: https://issues.apache.org/jira/browse/CASSANDRA-11517 > Project: Cassandra > Issue Type: Improvement > Components: Core > Reporter: Ariel Weisberg > Assignee: Ariel Weisberg > Priority: Minor > Fix For: 3.x > > > I noticed this profiling a query handler implementation that uses UUIDGen to > get handles to track queries for logging purposes. > Under contention threads are being unscheduled instead of spinning until the > lock is available. I would have expected intrinsic locks to be able to adapt > to this based on profiling information. > Either way it's seems pretty straightforward to rewrite this to use a CAS > loop and test that it generally produces unique values. -- This message was sent by Atlassian JIRA (v6.3.4#6332)