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Posted to dev@kafka.apache.org by "Ismael Juma (JIRA)" <ji...@apache.org> on 2016/10/12 12:12:20 UTC

[jira] [Updated] (KAFKA-4289) CPU wasted on reflection calls initializing short-lived loggers

     [ https://issues.apache.org/jira/browse/KAFKA-4289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ismael Juma updated KAFKA-4289:
-------------------------------
    Fix Version/s: 0.10.2.0

> 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
>             Fix For: 0.10.2.0
>
>
> 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`



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