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ASF GitHub Bot commented on KAFKA-4289: --------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/kafka/pull/2006 > CPU wasted on reflection calls initializing short-lived loggers > --------------------------------------------------------------- > > Key: KAFKA-4289 > URL: https://issues.apache.org/jira/browse/KAFKA-4289 > Project: Kafka > Issue Type: Bug > Affects Versions: 0.10.0.1 > Reporter: radai rosenblatt > > an internal profiling run at linkedin found ~5% of the CPU time consumed by > `sun.reflect.Reflection.getCallerClass()`. > digging into the stack trace shows its from initializing short lived logger > objects in `FileMessageSet` and `RequestChannel.Request` -- This message was sent by Atlassian JIRA (v6.3.4#6332)