[ https://issues.apache.org/jira/browse/ARTEMIS-1999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Francesco Nigro closed ARTEMIS-1999. ------------------------------------ Resolution: Fixed > Broker is using 100% core's CPU time if message grouping is used > ---------------------------------------------------------------- > > Key: ARTEMIS-1999 > URL: https://issues.apache.org/jira/browse/ARTEMIS-1999 > Project: ActiveMQ Artemis > Issue Type: Improvement > Components: Broker > Affects Versions: 2.6.2 > Reporter: Francesco Nigro > Assignee: Francesco Nigro > Priority: Major > Fix For: 2.6.3 > > Attachments: cpu.svg > > > When consuming messages with message grouping set on the broker seem to > consume excessive amount of CPU time. On 12 core CPU it can be observed that > one core goes 100% and stays that way as long as there is more than one > consumer attached to a queue. Once the number of consumers is reduced to 1 > the CPU usage goes to normal. But moment another consumer is attached another > CPU core goes 100%. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)